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[DRA829] Problems running weston-simple-egl on Linux

Other Parts Discussed in Thread: DRA829

Hello All,

I don't get any graphics output on monitor connected to Display Port. 

I am trying  to run weston sample application on linux and i get following errors.

root@j7-evm:~# weston-simple-egl
weston-simple-egl: ../weston-5.0.0/clients/simple-egl.c:901: main: Assertion `display.display' failed.

Aborted (core dumped)

i also tried modetest

root@j7-evm:~# modetest
trying to open device 'i915'...failed
trying to open device 'amdgpu'...failed
trying to open device 'radeon'...failed
trying to open device 'nouveau'...failed
trying to open device 'vmwgfx'...failed
trying to open device 'omapdrm'...failed
trying to open device 'exynos'...failed
trying to open device 'tilcdc'...failed
trying to open device 'msm'...failed
trying to open device 'sti'...failed
trying to open device 'tegra'...failed
trying to open device 'imx-drm'...failed
trying to open device 'rockchip'...failed
trying to open device 'atmel-hlcdc'...failed
trying to open device 'fsl-dcu-drm'...failed
trying to open device 'vc4'...failed
trying to open device 'virtio_gpu'...failed
trying to open device 'mediatek'...failed
trying to open device 'meson'...failed
trying to open device 'pl111'...failed
trying to open device 'stm'...failed
no device found

Regards

Vinay

  • Hi Vinay,

    The error when you  launch weston_simple_egl is because Weston is not launched  first.

    Weston launch is failing as omapdrm is not  leaded.

    Did you make any changes to linux kernel?

    Please search for omapdrm in dmesg and check.

    Thanks

    RamPrasad

  • Hi RamPrasad,

    The Linux image that i am using is a prebuilt image provided by TI, I have not done any changes to it.

    I could not find omapdrm in dmesg output . I have attached the output of dmesg below.

    root@j7-evm:~# dmesg
    [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x411fd080]
    [    0.000000] Linux version 4.19.50-g79386bfefc (oe-user@oe-host) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36))) #1 SMP PREEMPT Thu Aug 8 16:33:04 UTC 2019
    [    0.000000] Machine model: Texas Instruments K3 J721E SoC
    [    0.000000] earlycon: ns16550a0 at MMIO32 0x0000000002800000 (options '')
    [    0.000000] bootconsole [ns16550a0] enabled
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a0000000, size 1 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a0000000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a0100000, size 15 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-memory@a0100000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a1000000, size 1 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a1000000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a1100000, size 15 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-memory@a1100000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a2000000, size 1 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a2000000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a2100000, size 15 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-memory@a2100000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a3000000, size 1 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a3000000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a3100000, size 15 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-memory@a3100000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a4000000, size 1 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a4000000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a4100000, size 15 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-memory@a4100000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a5000000, size 1 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a5000000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a5100000, size 15 MiB
    [    0.000000] OF: reserved mem: initialized node r5f-memory@a5100000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a6000000, size 1 MiB
    [    0.000000] OF: reserved mem: initialized node c66-dma-memory@a6000000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a6100000, size 15 MiB
    [    0.000000] OF: reserved mem: initialized node c66-memory@a6100000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a7000000, size 1 MiB
    [    0.000000] OF: reserved mem: initialized node c66-dma-memory@a7000000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a7100000, size 15 MiB
    [    0.000000] OF: reserved mem: initialized node c66-memory@a7100000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a8000000, size 1 MiB
    [    0.000000] OF: reserved mem: initialized node c71-dma-memory@a8000000, compatible id shared-dma-pool
    [    0.000000] Reserved memory: created DMA memory pool at 0x00000000a8100000, size 15 MiB
    [    0.000000] OF: reserved mem: initialized node c71-memory@a8100000, compatible id shared-dma-pool
    [    0.000000] cma: Reserved 512 MiB at 0x00000000c0000000
    [    0.000000] On node 0 totalpages: 62400
    [    0.000000]   DMA32 zone: 29 pages used for memmap
    [    0.000000]   DMA32 zone: 0 pages reserved
    [    0.000000]   DMA32 zone: 29632 pages, LIFO batch:3
    [    0.000000]   Normal zone: 32 pages used for memmap
    [    0.000000]   Normal zone: 32768 pages, LIFO batch:3
    [    0.000000] psci: probing for conduit method from DT.
    [    0.000000] psci: PSCIv1.1 detected in firmware.
    [    0.000000] psci: Using standard PSCI v0.2 function IDs
    [    0.000000] psci: Trusted OS migration not required
    [    0.000000] psci: SMC Calling Convention v1.1
    [    0.000000] random: get_random_bytes called from start_kernel+0x94/0x3e4 with crng_init=0
    [    0.000000] percpu: Embedded 2 pages/cpu s48536 r8192 d74344 u131072
    [    0.000000] pcpu-alloc: s48536 r8192 d74344 u131072 alloc=2*65536
    [    0.000000] pcpu-alloc: [0] 0 [0] 1
    [    0.000000] Detected PIPT I-cache on CPU0
    [    0.000000] CPU features: enabling workaround for EL2 vector hardening
    [    0.000000] Speculative Store Bypass Disable mitigation not required
    [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 62339
    [    0.000000] Kernel command line: console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000 mtdparts=47040000.spi.0:512k(ospi.tiboot3),2m(ospi.tispl),4m(ospi.u-boot),128k(ospi.env),128k(ospi.env.backup),1m(ospi.sysfw),-@8m(ospi.rootfs);47034000.hyperbus:512k(hbmc.tiboot3),2m(hbmc.tispl),4m(hbmc.u-boot),256k(hbmc.env),1m(hbmc.sysfw),-@8m(hbmc.rootfs); root=PARTUUID=43ec964b-02 rw rootfstype=ext4 rootwait
    [    0.000000] Dentry cache hash table entries: 524288 (order: 6, 4194304 bytes)
    [    0.000000] Inode-cache hash table entries: 262144 (order: 5, 2097152 bytes)
    [    0.000000] software IO TLB: mapped [mem 0xf9dd0000-0xfddd0000] (64MB)
    [    0.000000] Memory: 3378112K/3993600K available (8254K kernel code, 722K rwdata, 3008K rodata, 576K init, 657K bss, 91200K reserved, 524288K cma-reserved)
    [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
    [    0.000000] rcu: Preemptible hierarchical RCU implementation.
    [    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2.
    [    0.000000]  Tasks RCU enabled.
    [    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
    [    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
    [    0.000000] GICv3: GIC: Using split EOI/Deactivate mode
    [    0.000000] GICv3: Distributor has no Range Selector support
    [    0.000000] GICv3: no VLPI support, no direct LPI support
    [    0.000000] ITS [mem 0x01820000-0x0182ffff]
    [    0.000000] GIC: enabling workaround for ITS: Socionext Synquacer pre-ITS
    [    0.000000] ITS@0x0000000001820000: allocated 1048576 Devices @8c0800000 (flat, esz 8, psz 64K, shr 0)
    [    0.000000] ITS: using cache flushing for cmd queue
    [    0.000000] GIC: using LPI property table @0x00000008c00a0000
    [    0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000001900000
    [    0.000000] CPU0: using LPI pending table @0x00000008c00b0000
    [    0.000000] GIC: using cache flushing for LPI property table
    [    0.000000] arch_timer: cp15 timer(s) running at 200.00MHz (phys).
    [    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x2e2049d3e8, max_idle_ns: 440795210634 ns
    [    0.000002] sched_clock: 56 bits at 200MHz, resolution 5ns, wraps every 4398046511102ns
    [    0.008320] Console: colour dummy device 80x25
    [    0.012873] Calibrating delay loop (skipped), value calculated using timer frequency.. 400.00 BogoMIPS (lpj=800000)
    [    0.023541] pid_max: default: 32768 minimum: 301
    [    0.028281] Security Framework initialized
    [    0.032485] Mount-cache hash table entries: 8192 (order: 0, 65536 bytes)
    [    0.039341] Mountpoint-cache hash table entries: 8192 (order: 0, 65536 bytes)
    [    0.070672] ASID allocator initialised with 32768 entries
    [    0.084198] rcu: Hierarchical SRCU implementation.
    [    0.097139] Platform MSI: gic-its@18200000 domain created
    [    0.102734] PCI/MSI: /interconnect@100000/interrupt-controller@1800000/gic-its@18200000 domain created
    [    0.120255] smp: Bringing up secondary CPUs ...
    [    0.171044] Detected PIPT I-cache on CPU1
    [    0.171060] GICv3: CPU1: found redistributor 1 region 0:0x0000000001920000
    [    0.171088] CPU1: using LPI pending table @0x00000008c0310000
    [    0.171108] CPU1: Booted secondary processor 0x0000000001 [0x411fd080]
    [    0.171152] smp: Brought up 1 node, 2 CPUs
    [    0.198987] SMP: Total of 2 processors activated.
    [    0.203796] CPU features: detected: GIC system register CPU interface
    [    0.210378] CPU features: detected: 32-bit EL0 Support
    [    0.215861] CPU: All CPU(s) started at EL2
    [    0.220048] alternatives: patching kernel code
    [    0.224988] devtmpfs: initialized
    [    0.231856] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
    [    0.241822] futex hash table entries: 512 (order: -1, 32768 bytes)
    [    0.248471] pinctrl core: initialized pinctrl subsystem
    [    0.254119] NET: Registered protocol family 16
    [    0.258981] vdso: 2 pages (1 code @ (____ptrval____), 1 data @ (____ptrval____))
    [    0.266543] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
    [    0.275672] DMA: preallocated 256 KiB pool for atomic allocations
    [    0.287807] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
    [    0.294661] HugeTLB registered 512 MiB page size, pre-allocated 0 pages
    [    0.302047] cryptd: max_cpu_qlen set to 1000
    [    0.310800] vsys_3v3: supplied by evm_12v0
    [    0.315058] vsys_5v0: supplied by evm_12v0
    [    0.319698] media: Linux media interface: v0.10
    [    0.324334] videodev: Linux video capture interface: v2.00
    [    0.329947] pps_core: LinuxPPS API ver. 1 registered
    [    0.335017] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
    [    0.344354] PTP clock support registered
    [    0.348364] EDAC MC: Ver: 3.0.0
    [    0.352104] Advanced Linux Sound Architecture Driver Initialized.
    [    0.358659] clocksource: Switched to clocksource arch_sys_counter
    [    0.364942] VFS: Disk quotas dquot_6.6.0
    [    0.368988] VFS: Dquot-cache hash table entries: 8192 (order 0, 65536 bytes)
    [    0.378348] NET: Registered protocol family 2
    [    0.383037] tcp_listen_portaddr_hash hash table entries: 4096 (order: 0, 65536 bytes)
    [    0.391087] TCP established hash table entries: 32768 (order: 2, 262144 bytes)
    [    0.398571] TCP bind hash table entries: 32768 (order: 3, 524288 bytes)
    [    0.405621] TCP: Hash tables configured (established 32768 bind 32768)
    [    0.412344] UDP hash table entries: 2048 (order: 0, 65536 bytes)
    [    0.418525] UDP-Lite hash table entries: 2048 (order: 0, 65536 bytes)
    [    0.425191] NET: Registered protocol family 1
    [    0.433853] RPC: Registered named UNIX socket transport module.
    [    0.439906] RPC: Registered udp transport module.
    [    0.444709] RPC: Registered tcp transport module.
    [    0.449512] RPC: Registered tcp NFSv4.1 backchannel transport module.
    [    0.456093] PCI: CLS 0 bytes, default 64
    [    0.456317] hw perfevents: enabled with armv8_pmuv3 PMU driver, 7 counters available
    [    0.465838] Initialise system trusted keyrings
    [    0.470436] workingset: timestamp_bits=46 max_order=16 bucket_order=0
    [    0.478443] squashfs: version 4.0 (2009/01/31) Phillip Lougher
    [    0.484589] NFS: Registering the id_resolver key type
    [    0.489758] Key type id_resolver registered
    [    0.494031] Key type id_legacy registered
    [    0.498128] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
    [    0.505025] 9p: Installing v9fs 9p2000 file system support
    [    0.512074] Key type asymmetric registered
    [    0.516261] Asymmetric key parser 'x509' registered
    [    0.521262] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
    [    0.528821] io scheduler noop registered
    [    0.532826] io scheduler deadline registered
    [    0.537221] io scheduler cfq registered (default)
    [    0.542028] io scheduler mq-deadline registered
    [    0.546654] io scheduler kyber registered
    [    0.551455] pinctrl-single 4301c000.pinmux: 94 pins, size 376
    [    0.557500] pinctrl-single 11c000.pinmux: 173 pins, size 692
    [    0.563606] pinctrl-single a40000.timesync_router: 512 pins, size 2048
    [    0.573324] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
    [    0.581003] arm-smmu-v3 36600000.smmu: IDR0.COHACC overridden by FW configuration (false)
    [    0.589374] arm-smmu-v3 36600000.smmu: ias 48-bit, oas 48-bit (features 0x00001eaf)
    [    0.598339] arm-smmu-v3 36600000.smmu: msi_domain absent - falling back to wired irqs
    [    0.609827] brd: module loaded
    [    0.615375] loop: module loaded
    [    0.619264] libphy: Fixed MDIO Bus: probed
    [    0.623601] tun: Universal TUN/TAP device driver, 1.6
    [    0.628948] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.4.0-k
    [    0.636955] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
    [    0.643021] sky2: driver version 1.30
    [    0.647259] VFIO - User Level meta-driver version: 0.3
    [    0.652806] i2c /dev entries driver
    [    0.656753] sdhci: Secure Digital Host Controller Interface driver
    [    0.663068] sdhci: Copyright(c) Pierre Ossman
    [    0.667681] sdhci-pltfm: SDHCI platform and OF driver helper
    [    0.673851] ledtrig-cpu: registered to indicate activity on CPUs
    [    0.680580] optee: probing for conduit method from DT.
    [    0.685840] optee: revision 3.5 (3a513cea)
    [    0.685931] optee: initialized driver
    [    0.694466] NET: Registered protocol family 17
    [    0.699042] 9pnet: Installing 9P2000 support
    [    0.703420] Key type dns_resolver registered
    [    0.707972] registered taskstats version 1
    [    0.712157] Loading compiled-in X.509 certificates
    [    0.722600] ti-sci 44083000.dmsc: ABI: 2.6 (firmware rev 0x0013 '19.6.1-v2019.06a (Terrific Llam')
    [    1.616096] random: fast init done
    [    2.876201] davinci_gpio 42110000.gpio: IRQ not populated, err = -517
    [    2.887200] davinci_gpio 600000.gpio: IRQ not populated, err = -517
    [    2.899851] davinci_gpio 601000.gpio: IRQ not populated, err = -517
    [    2.912657] omap_i2c 40b00000.i2c: bus 0 rev0.12 at 100 kHz
    [    2.925291] omap_i2c 40b10000.i2c: bus 1 rev0.12 at 100 kHz
    [    2.940403] palmas 2-0058: IRQ missing: skipping irq request
    [    2.966920] palmas 2-0058: Muxing GPIO 5d, PWM 0, LED 0
    [    2.972823] SMPS3: supplied by regulator-dummy
    [    2.978057] SMPS4: supplied by regulator-dummy
    [    2.983284] SMPS5: supplied by regulator-dummy
    [    2.988508] SMPS12: supplied by regulator-dummy
    [    2.993784] LDO1: supplied by vsys_3v3
    [    2.998008] ldo1: Bringing 900000uV into 1800000-1800000uV
    [    3.005839] LDO2: supplied by regulator-dummy
    [    3.010693] ldo2: Bringing 900000uV into 3300000-3300000uV
    [    3.019378] LDO3: supplied by regulator-dummy
    [    3.024262] LDO4: supplied by regulator-dummy
    [    3.029142] LDO5: supplied by regulator-dummy
    [    3.034178] omap_i2c 42120000.i2c: bus 2 rev0.12 at 400 kHz
    [    3.048244] pca953x 3-0020: 3-0020 supply vcc not found, using dummy regulator
    [    3.055644] pca953x 3-0020: Linked as a consumer to regulator.0
    [    3.083192] pca953x 3-0022: 3-0022 supply vcc not found, using dummy regulator
    [    3.090588] pca953x 3-0022: Linked as a consumer to regulator.0
    [    3.097459] GPIO line 481 (MCASP/TRACE_MUX_S0) hogged as output/low
    [    3.104183] GPIO line 482 (MCASP/TRACE_MUX_S1) hogged as output/high
    [    3.110736] omap_i2c 2000000.i2c: bus 3 rev0.12 at 400 kHz
    [    3.124710] omap_i2c 2010000.i2c: bus 4 rev0.12 at 400 kHz
    [    3.138623] omap_i2c 2020000.i2c: bus 5 rev0.12 at 100 kHz
    [    3.152563] pca953x 6-0020: 6-0020 supply vcc not found, using dummy regulator
    [    3.159964] pca953x 6-0020: Linked as a consumer to regulator.0
    [    3.187321] GPIO line 464 (CODEC_RSTz) hogged as output/high
    [    3.193210] omap_i2c 2030000.i2c: bus 6 rev0.12 at 400 kHz
    [    3.207100] omap_i2c 2040000.i2c: bus 7 rev0.12 at 100 kHz
    [    3.220986] omap_i2c 2050000.i2c: bus 8 rev0.12 at 100 kHz
    [    3.234924] pca953x 9-0020: 9-0020 supply vcc not found, using dummy regulator
    [    3.242323] pca953x 9-0020: Linked as a consumer to regulator.0
    [    3.271082] omap_i2c 2060000.i2c: bus 9 rev0.12 at 400 kHz
    [    3.561635] wiz interconnect@100000:wiz@5030000: Failed to request typec-dir gpio: -517
    [    3.582005] cdns-pcie-host d000000.pcie: missing "mem"
    [    3.587593] cdns-pcie-host d000000.pcie: Linked as a consumer to phy-5000000.serdes.0
    [    4.596965] cdns-pcie-host d000000.pcie: Phy link never came up
    [    4.603019] cdns-pcie-host d000000.pcie: host bridge /interconnect@100000/pcie@2900000/pcie@d000000 ranges:
    [    4.612987] cdns-pcie-host d000000.pcie:    IO 0x10001000..0x10010fff -> 0x10001000
    [    4.620818] cdns-pcie-host d000000.pcie:   MEM 0x10011000..0x17ffffff -> 0x10011000
    [    4.628698] cdns-pcie-host d000000.pcie: PCI host bridge to bus 0000:00
    [    4.635460] pci_bus 0000:00: root bus resource [bus 00-0f]
    [    4.641065] pci_bus 0000:00: root bus resource [io  0x0000-0xffff] (bus address [0x10001000-0x10010fff])
    [    4.650756] pci_bus 0000:00: root bus resource [mem 0x10011000-0x17ffffff]
    [    4.657795] pci 0000:00:00.0: [104c:b00d] type 01 class 0x060400
    [    4.657806] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0x4 may corrupt adjacent RW1C bits
    [    4.667677] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0x4 may corrupt adjacent RW1C bits
    [    4.677568] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0x92 may corrupt adjacent RW1C bits
    [    4.687529] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0xb2 may corrupt adjacent RW1C bits
    [    4.697510] pci 0000:00:00.0: supports D1
    [    4.697512] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
    [    4.697516] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0x84 may corrupt adjacent RW1C bits
    [    4.708906] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
    [    4.717093] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0x3e may corrupt adjacent RW1C bits
    [    4.727052] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0x3e may corrupt adjacent RW1C bits
    [    4.737014] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0x3e may corrupt adjacent RW1C bits
    [    4.746973] pci_bus 0000:00: 2-byte config write to 0000:00:00.0 offset 0x6 may corrupt adjacent RW1C bits
    [    4.758155] pci_bus 0000:01: busn_res: [bus 01-0f] end is updated to 01
    [    4.758158] pci_bus 0000:00: 1-byte config write to 0000:00:00.0 offset 0x1a may corrupt adjacent RW1C bits
    [    4.768124] pci 0000:00:00.0: PCI bridge to [bus 01]
    [    4.785333] cdns-pcie-host d800000.pcie: missing "mem"
    [    4.790920] cdns-pcie-host d800000.pcie: Linked as a consumer to phy-5010000.serdes.1
    [    5.800295] cdns-pcie-host d800000.pcie: Phy link never came up
    [    5.806349] cdns-pcie-host d800000.pcie: host bridge /interconnect@100000/pcie@2910000/pcie@d800000 ranges:
    [    5.816317] cdns-pcie-host d800000.pcie:    IO 0x18001000..0x18010fff -> 0x18001000
    [    5.824148] cdns-pcie-host d800000.pcie:   MEM 0x18011000..0x1fffffff -> 0x18011000
    [    5.832026] cdns-pcie-host d800000.pcie: PCI host bridge to bus 0001:00
    [    5.838786] pci_bus 0001:00: root bus resource [bus 00-0f]
    [    5.844391] pci_bus 0001:00: root bus resource [io  0x10000-0x1ffff] (bus address [0x18001000-0x18010fff])
    [    5.854259] pci_bus 0001:00: root bus resource [mem 0x18011000-0x1fffffff]
    [    5.861294] pci 0001:00:00.0: [104c:b00d] type 01 class 0x060400
    [    5.861350] pci 0001:00:00.0: supports D1
    [    5.861352] pci 0001:00:00.0: PME# supported from D0 D1 D3hot
    [    5.862716] pci 0001:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
    [    5.872169] pci_bus 0001:01: busn_res: [bus 01-0f] end is updated to 01
    [    5.872179] pci 0001:00:00.0: PCI bridge to [bus 01]
    [    5.889388] cdns-pcie-host e000000.pcie: missing "mem"
    [    5.894976] cdns-pcie-host e000000.pcie: Linked as a consumer to phy-5020000.serdes.2
    [    6.904348] cdns-pcie-host e000000.pcie: Phy link never came up
    [    6.910401] cdns-pcie-host e000000.pcie: host bridge /interconnect@100000/pcie@2920000/pcie@e000000 ranges:
    [    6.920368] cdns-pcie-host e000000.pcie:    IO 0x4400001000..0x4400010fff -> 0x00001000
    [    6.928554] cdns-pcie-host e000000.pcie:   MEM 0x4400011000..0x4407ffffff -> 0x00011000
    [    6.936784] cdns-pcie-host e000000.pcie: PCI host bridge to bus 0002:00
    [    6.943544] pci_bus 0002:00: root bus resource [bus 00-0f]
    [    6.949149] pci_bus 0002:00: root bus resource [io  0x20000-0x2ffff] (bus address [0x1000-0x10fff])
    [    6.958396] pci_bus 0002:00: root bus resource [mem 0x4400011000-0x4407ffffff] (bus address [0x00011000-0x07ffffff])
    [    6.969162] pci 0002:00:00.0: [104c:b00d] type 01 class 0x060400
    [    6.969217] pci 0002:00:00.0: supports D1
    [    6.969219] pci 0002:00:00.0: PME# supported from D0 D1 D3hot
    [    6.970540] pci 0002:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
    [    6.979996] pci_bus 0002:01: busn_res: [bus 01-0f] end is updated to 01
    [    6.980005] pci 0002:00:00.0: PCI bridge to [bus 01]
    [    6.989672] k3-ringacc 2b800000.ringacc: Ring Accelerator probed rings:286, gp-rings[96,20] sci-dev-id:235
    [    6.999550] k3-ringacc 2b800000.ringacc: dma-ring-reset-quirk: disabled
    [    7.006310] k3-ringacc 2b800000.ringacc: RA Proxy rev. 66346100, num_proxies:64
    [    7.018199] k3-ringacc 3c000000.ringacc: Ring Accelerator probed rings:1024, gp-rings[440,150] sci-dev-id:211
    [    7.028337] k3-ringacc 3c000000.ringacc: dma-ring-reset-quirk: disabled
    [    7.035099] k3-ringacc 3c000000.ringacc: RA Proxy rev. 66346100, num_proxies:64
    [    7.046946] omap8250 40a00000.serial: PM domain pd:149 will not be powered off
    [    7.054454] 40a00000.serial: ttyS1 at MMIO 0x40a00000 (irq = 7, base_baud = 6000000) is a 8250
    [    7.067796] 2800000.serial: ttyS2 at MMIO 0x2800000 (irq = 15, base_baud = 3000000) is a 8250
    [    7.076531] console [ttyS2] enabled
    [    7.083566] bootconsole [ns16550a0] disabled
    [    7.101454] 2810000.serial: ttyS3 at MMIO 0x2810000 (irq = 16, base_baud = 3000000) is a 8250
    [    7.119235] 2820000.serial: ttyS4 at MMIO 0x2820000 (irq = 17, base_baud = 3000000) is a 8250
    [    7.137012] 2840000.serial: ttyS6 at MMIO 0x2840000 (irq = 18, base_baud = 3000000) is a 8250
    [    7.158911] cadence-qspi 47050000.spi: n25q512a (65536 Kbytes)
    [    7.164740] mtd: no mtd-id
    [    7.182747] cadence-qspi 47050000.spi: Cadence QSPI NOR probe failed -517
    [    7.223198] 47034000.hyperbus: Found 1 x16 devices at 0x0 in 16-bit bank. Manufacturer ID 0x000001 Chip ID 0x007000
    [    7.233617] Amd/Fujitsu Extended Query Table at 0x0040
    [    7.238765]   Amd/Fujitsu Extended Query version 1.5.
    [    7.243804] 47034000.hyperbus: CFI contains unrecognised boot bank location (0). Assuming bottom.
    [    7.252655] number of CFI chips: 1
    [    7.256048] 6 cmdlinepart partitions found on MTD device 47034000.hyperbus
    [    7.262905] Creating 6 MTD partitions on "47034000.hyperbus":
    [    7.268637] 0x000000000000-0x000000080000 : "hbmc.tiboot3"
    [    7.274320] 0x000000080000-0x000000280000 : "hbmc.tispl"
    [    7.279829] 0x000000280000-0x000000680000 : "hbmc.u-boot"
    [    7.285408] 0x000000680000-0x0000006c0000 : "hbmc.env"
    [    7.290727] 0x0000006c0000-0x0000007c0000 : "hbmc.sysfw"
    [    7.296216] 0x000000800000-0x000004000000 : "hbmc.rootfs"
    [    7.311946] am65-cpsw-nuss 46000000.ethernet: rx-flow-id-base is not set -22
    [    7.318997] am65-cpsw-nuss 46000000.ethernet: initializing am65 cpsw nuss version 0x6BA00101, cpsw version 0x6BA80100 Ports: 2
    [    7.330412] UDMA has not been proped
    [    7.333980] am65-cpsw-nuss 46000000.ethernet: Failed to request tx dma channel -517
    [    7.366227] am65-cpts 310d0000.cpts: CPTS ver 0x4e8a010a, freq:200000000, add_val:4 pps:0
    [    7.384622] mmc0: Unknown controller version (4). You may experience problems.
    [    7.422567] mmc0: SDHCI controller on 4f80000.sdhci [4f80000.sdhci] using ADMA 64-bit
    [    7.440600] sdhci-am654 4fb0000.sdhci: Linked as a consumer to regulator.8
    [    7.457525] sdhci-am654 4fb0000.sdhci: Dropping the link to regulator.8
    [    7.477912] mmc0: new HS400 MMC card at address 0001
    [    7.483380] mmcblk0: mmc0:0001 S0J56X 14.8 GiB
    [    7.488333] mmcblk0boot0: mmc0:0001 S0J56X partition 1 31.5 MiB
    [    7.494698] mmcblk0boot1: mmc0:0001 S0J56X partition 2 31.5 MiB
    [    7.500699] mmcblk0rpmb: mmc0:0001 S0J56X partition 3 4.00 MiB, chardev (242:0)
    [    7.516879]  mmcblk0: p1 p2 p3
    [    7.640291] vdd_mmc1: supplied by vsys_3v3
    [    7.652709] pca953x 4-0020: 4-0020 supply vcc not found, using dummy regulator
    [    7.659969] pca953x 4-0020: Linked as a consumer to regulator.0
    [    7.692721] omap-mailbox 31f80000.mailbox: omap mailbox rev 0x66fc7100
    [    7.704640] omap-mailbox 31f81000.mailbox: omap mailbox rev 0x66fc7100
    [    7.716558] omap-mailbox 31f82000.mailbox: omap mailbox rev 0x66fc7100
    [    7.728468] omap-mailbox 31f83000.mailbox: omap mailbox rev 0x66fc7100
    [    7.740363] omap-mailbox 31f84000.mailbox: omap mailbox rev 0x66fc7100
    [    7.797829] ti-udma 285c0000.udmap: Channels: 24 (tchan: 48, echan: 0, rchan: 48, rflow: 96)
    [    7.837538] ti-udma 31150000.udmap: Channels: 84 (tchan: 140, echan: 160, rchan: 140, rflow: 300)
    [    7.867587] cadence-qspi 47050000.spi: n25q512a (65536 Kbytes)
    [    7.914003] am65-cpsw-nuss 46000000.ethernet: rx-flow-id-base is not set -22
    [    7.921056] am65-cpsw-nuss 46000000.ethernet: initializing am65 cpsw nuss version 0x6BA00101, cpsw version 0x6BA80100 Ports: 2
    [    8.112541] am65-cpsw-nuss 46000000.ethernet: set new flow-id-base 48
    [    8.231016] pps pps0: new PPS source ptp1
    [    8.235101] am65-cpsw-nuss 46000000.ethernet: CPTS ver 0x4e8a010a, freq:500000000, add_val:1 pps:1
    [    8.244044] am65-cpsw-nuss 46000000.ethernet: initialized cpsw ale version 0.4
    [    8.251252] am65-cpsw-nuss 46000000.ethernet: ALE Table size 64
    [    8.294667] am65-cpsw-nuss 46000000.ethernet: davinci mdio revision 9.7, bus freq 1000000
    [    8.302828] libphy: 46000000.ethernet: probed
    [    8.318282] sdhci-am654 4fb0000.sdhci: Linked as a consumer to regulator.16
    [    8.325255] sdhci-am654 4fb0000.sdhci: Linked as a consumer to regulator.8
    [    8.332153] mmc1: Unknown controller version (4). You may experience problems.
    [    8.380869] mmc1: SDHCI controller on 4fb0000.sdhci [4fb0000.sdhci] using ADMA 64-bit
    [    8.556425] hctosys: unable to open rtc device (rtc0)
    [    9.640974] ALSA device list:
    [    9.643935]   No soundcards found.
    [    9.647561] Waiting for root device PARTUUID=43ec964b-02...
    [    9.731170] mmc1: new high speed SDHC card at address aaaa
    [    9.737127] mmcblk1: mmc1:aaaa SC16G 14.8 GiB
    [    9.749282]  mmcblk1: p1 p2
    [   11.191872] EXT4-fs (mmcblk1p2): recovery complete
    [   11.197631] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null)
    [   11.205723] VFS: Mounted root (ext4 filesystem) on device 179:98.
    [   11.215594] devtmpfs: mounted
    [   11.218690] Freeing unused kernel memory: 576K
    [   11.223131] Run /sbin/init as init process
    [   11.473551] systemd[1]: System time before build time, advancing clock.
    [   11.548588] NET: Registered protocol family 10
    [   11.553343] Segment Routing with IPv6
    [   11.579934] systemd[1]: systemd 239 running in system mode. (+PAM -AUDIT -SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN -PCRE2 default-hierarchy=hybrid)
    [   11.601345] systemd[1]: Detected architecture arm64.
    [   11.629386] systemd[1]: Set hostname to <j7-evm>.
    [   11.773809] systemd[1]: File /lib/systemd/system/systemd-journald.service:36 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.
    [   11.790835] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)
    [   11.909402] random: systemd: uninitialized urandom read (16 bytes read)
    [   11.916903] systemd[1]: Created slice system-serial\x2dgetty.slice.
    [   11.934719] random: systemd: uninitialized urandom read (16 bytes read)
    [   11.941517] systemd[1]: Listening on Journal Socket.
    [   11.958706] random: systemd: uninitialized urandom read (16 bytes read)
    [   11.965378] systemd[1]: Listening on initctl Compatibility Named Pipe.
    [   11.983001] systemd[1]: Created slice system-getty.slice.
    [   11.998822] systemd[1]: Listening on udev Control Socket.
    [   12.209966] cmemk: loading out-of-tree module taints kernel.
    [   12.216475] CMEMK module: reference Linux version 4.19.50
    [   12.227091] no physical memory specified
    [   12.232469] cmemk initialized
    [   12.243909] cryptodev: driver 1.9 loaded.
    [   12.336673] EXT4-fs (mmcblk1p2): re-mounted. Opts: (null)
    [   12.684842] systemd-journald[152]: Received request to flush runtime journal from PID 1
    [   12.806252] pcm3168a 6-0044: Linked as a consumer to regulator.2
    [   12.823041] pcm3168a 6-0044: Linked as a consumer to regulator.3
    [   12.999662] k3-dsp-rproc 4d80800000.dsp: assigned reserved memory node c66-dma-memory@a7000000
    [   13.021278] k3-dsp-rproc 4d80800000.dsp: configured DSP for remoteproc mode
    [   13.042815] remoteproc remoteproc0: 4d80800000.dsp is available
    [   13.062827] k3-dsp-rproc 4d81800000.dsp: assigned reserved memory node c66-dma-memory@a6000000
    [   13.076940] remoteproc remoteproc0: Direct firmware load for j7-c66_0-fw failed with error -2
    [   13.088868] remoteproc remoteproc0: powering up 4d80800000.dsp
    [   13.118725] remoteproc remoteproc0: Direct firmware load for j7-c66_0-fw failed with error -2
    [   13.131526] remoteproc remoteproc0: request_firmware failed: -2
    [   13.137458] k3-dsp-rproc 4d81800000.dsp: configured DSP for remoteproc mode
    [   13.144678] iommu: Adding device 0000:00:00.0 to group 0
    [   13.150296] remoteproc remoteproc1: 4d81800000.dsp is available
    [   13.152037] pci-endpoint-test 0000:00:00.0: of_irq_parse_pci: failed with rc=-22
    [   13.156338] PVR_K:  171: HTBInit: HTBufferSizeInKB = 64
    [   13.174411] img_dec 4300000.video-decoder: decoder registered as /dev/video0
    [   13.181538] remoteproc remoteproc1: Direct firmware load for j7-c66_1-fw failed with error -2
    [   13.181643] pci_generic_config_write32: 29 callbacks suppressed
    [   13.181647] pci_bus 0000:00: 1-byte config write to 0000:00:00.0 offset 0x3c may corrupt adjacent RW1C bits
    [   13.205873] remoteproc remoteproc1: powering up 4d81800000.dsp
    [   13.211725] remoteproc remoteproc1: Direct firmware load for j7-c66_1-fw failed with error -2
    [   13.220281] remoteproc remoteproc1: request_firmware failed: -2
    [   13.226756] k3-dsp-rproc 64800000.dsp: assigned reserved memory node c71-dma-memory@a8000000
    [   13.239161] iommu: Adding device 0001:00:00.0 to group 1
    [   13.245467] k3-dsp-rproc 64800000.dsp: configured DSP for remoteproc mode
    [   13.257054] pci-endpoint-test 0001:00:00.0: of_irq_parse_pci: failed with rc=-22
    [   13.268454] pvrsrvkm 4e20000000.gpu: Linked as a consumer to genpd:0:4e20000000.gpu
    [   13.283055] remoteproc remoteproc2: 64800000.dsp is available
    [   13.295288] pci_bus 0001:00: 1-byte config write to 0001:00:00.0 offset 0x3c may corrupt adjacent RW1C bits
    [   13.305786] remoteproc remoteproc2: Direct firmware load for j7-c71_0-fw failed with error -2
    [   13.318353] pvrsrvkm 4e20000000.gpu: Linked as a consumer to genpd:1:4e20000000.gpu
    [   13.326028] remoteproc remoteproc2: powering up 64800000.dsp
    [   13.331708] remoteproc remoteproc2: Direct firmware load for j7-c71_0-fw failed with error -2
    [   13.341992] PVR_K:  171: Read BVNC 22.104.208.318 from HW device registers
    [   13.353319] remoteproc remoteproc2: request_firmware failed: -2
    [   13.359974] iommu: Adding device 0002:00:00.0 to group 2
    [   13.366097] pci-endpoint-test 0002:00:00.0: of_irq_parse_pci: failed with rc=-22
    [   13.374254] PVR_K:  171: RGX Device initialised with BVNC 22.104.208.318
    [   13.381389] [drm] Initialized pvr 1.10.5187610 20170530 for 4e20000000.gpu on minor 0
    [   13.393727] pci_bus 0002:00: 1-byte config write to 0002:00:00.0 offset 0x3c may corrupt adjacent RW1C bits
    [   13.508384] k3_r5_rproc interconnect@100000:interconnect@28380000:r5fss@41000000: creating child devices for R5F cores
    [   13.602698] platform 41000000.r5f: configured R5F for remoteproc mode
    [   13.650953] platform 41000000.r5f: assigned reserved memory node r5f-dma-memory@a0000000
    [   13.704759] remoteproc remoteproc3: 41000000.r5f is available
    [   13.713110] TI DP83867 k3-cpsw-mdio:00: attached PHY driver [TI DP83867] (mii_bus:phy_addr=k3-cpsw-mdio:00, irq=POLL)
    [   13.731669] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
    [   13.774295] remoteproc remoteproc3: Direct firmware load for j7-mcu-r5f0_0-fw failed with error -2
    [   13.785488] remoteproc remoteproc3: powering up 41000000.r5f
    [   13.793482] remoteproc remoteproc3: Direct firmware load for j7-mcu-r5f0_0-fw failed with error -2
    [   13.803432] k3_r5_rproc interconnect@100000:r5fss@5c00000: creating child devices for R5F cores
    [   13.812176] remoteproc remoteproc3: request_firmware failed: -2
    [   13.834480] platform 5c00000.r5f: R5F core may have been powered on by a different host, programmed state (0) != actual state (1)
    [   13.864531] platform 5c00000.r5f: configured R5F for IPC-only mode
    [   13.872111] platform 5c00000.r5f: assigned reserved memory node r5f-dma-memory@a2000000
    [   13.888298] remoteproc remoteproc4: 5c00000.r5f is available
    [   13.912330] platform 5d00000.r5f: configured R5F for remoteproc mode
    [   13.931611] platform 5d00000.r5f: assigned reserved memory node r5f-dma-memory@a3000000
    [   13.944300] remoteproc remoteproc5: 5d00000.r5f is available
    [   13.967126] k3_r5_rproc interconnect@100000:r5fss@5e00000: creating child devices for R5F cores
    [   14.009748] platform 5e00000.r5f: configured R5F for remoteproc mode
    [   14.029711] platform 5e00000.r5f: assigned reserved memory node r5f-dma-memory@a4000000
    [   14.038328] remoteproc remoteproc4: powering up 5c00000.r5f
    [   14.043934] remoteproc remoteproc4: Booting fw image j7-main-r5f0_0-fw, size 1910700
    [   14.051211] remoteproc remoteproc6: 5e00000.r5f is available
    [   14.060172] remoteproc remoteproc6: Direct firmware load for j7-main-r5f1_0-fw failed with error -2
    [   14.072409] remoteproc remoteproc6: powering up 5e00000.r5f
    [   14.081001] remoteproc remoteproc6: Direct firmware load for j7-main-r5f1_0-fw failed with error -2
    [   14.092505] remoteproc remoteproc6: request_firmware failed: -2
    [   14.266169] asoc-simple-card sound@0: pcm3168a-dac <-> 2ba0000.mcasp mapping ok
    [   14.325956] asoc-simple-card sound@0: pcm3168a-adc <-> 2ba0000.mcasp mapping ok
    [   14.502163] remoteproc remoteproc5: powering up 5d00000.r5f
    [   14.507940] remoteproc remoteproc5: Booting fw image j7-main-r5f0_1-fw, size 6926108
    [   14.537093] remoteproc remoteproc5: erroneous trace resource entry
    [   14.543317] remoteproc remoteproc5: Failed to process resources: -22
    [   14.574156] cdns-usb3 6000000.usb: DRD version v1 (ID: 0004024e, rev: 00000200)
    [   14.641652] cdns-usb3 6400000.usb: DRD version v1 (ID: 0004024e, rev: 00000200)
    [   14.716388] usbcore: registered new interface driver usbfs
    [   14.721959] usbcore: registered new interface driver hub
    [   14.727319] usbcore: registered new device driver usb
    [   14.751768] am65-cpsw-nuss 46000000.ethernet eth0: Link is Down
    [   14.767083] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
    [   14.772858] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1
    [   14.781748] xhci-hcd xhci-hcd.1.auto: hcc params 0x200073c9 hci version 0x100 quirks 0x0000000000010010
    [   14.791198] xhci-hcd xhci-hcd.1.auto: irq 314, io mem 0x06410000
    [   14.797458] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
    [   14.806266] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    [   14.813530] usb usb1: Product: xHCI Host Controller
    [   14.818434] usb usb1: Manufacturer: Linux 4.19.50-g79386bfefc xhci-hcd
    [   14.824993] usb usb1: SerialNumber: xhci-hcd.1.auto
    [   14.830196] hub 1-0:1.0: USB hub found
    [   14.834029] hub 1-0:1.0: 1 port detected
    [   14.838143] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
    [   14.843663] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2
    [   14.851446] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0  SuperSpeed
    [   14.858122] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
    [   14.866285] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.19
    [   14.874545] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    [   14.881772] usb usb2: Product: xHCI Host Controller
    [   14.886700] usb usb2: Manufacturer: Linux 4.19.50-g79386bfefc xhci-hcd
    [   14.893258] usb usb2: SerialNumber: xhci-hcd.1.auto
    [   14.898519] hub 2-0:1.0: USB hub found
    [   14.902290] hub 2-0:1.0: 1 port detected
    [   14.977115] NET: Registered protocol family 15
    [   15.029875] Initializing XFRM netlink socket
    [   15.170715] usb 1-1: new high-speed USB device number 2 using xhci-hcd
    [   15.326965] usb 1-1: New USB device found, idVendor=0451, idProduct=8142, bcdDevice= 1.00
    [   15.335219] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=1
    [   15.342689] usb 1-1: SerialNumber: AE060859E165
    [   15.352541] hub 1-1:1.0: USB hub found
    [   15.356532] hub 1-1:1.0: 4 ports detected
    [   15.530352] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
    [   15.580166] EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null)
    [   69.165875] random: crng init done
    [   69.174771] random: 7 urandom warning(s) missed due to ratelimiting
    root@j7-evm:~#

    Regards

    Vinay

  • Hi Vinay,

    I see the platform as DRA829, if so `omapdrm` is not available with it. To run modetest, you would have to provide `tidss` as the drm driver. Run below 

    ```

    modetest -M tidss

    ```

    The logs seem to suggest that display is not initialized. Can you run above, that will confirm the display presence. If you have a display connected, can you share the resolution of display, and is it a HDMI or DP panel.

    Thanks,

    Gowtham

  • Hi Gowtham,

    I ran the modetest command and i get following output.

    root@j7-evm:~# modetest -M tidss
    failed to open device 'tidss': No such file or directory

    I have connected LG display  and the model number is LG27UD58 its resolution is 3840 x 2160. Its connected using Display Port.

    Regards

    Vinay

  • Hi Vinay,

    Ok, it appears as if the display has not been initialized. You mentioned you are using dp panel, can you check if the dp device overlay is being loaded during boot. You can do below to check.

      - On boot keep pressing enter to pause kernel image load and enter into uboot prompt

      - type the `run findfdt; run envboot` command

      - type `print overlay_files` command and see if it lists anything that ends with `k3-j721e-dp0.dtbo'

      - If you don't see that file. Please edit the uEnv.txt file in the boot partition of the image to add the below line

    ```

    overlay_files=k3-j721e-dp0.dtbo

    ```

      - Reboot the device

    Thanks,

    Gowtham

  • Hi Gowtham,

    Thanks it fixed my display issues

    Regards

    Vinay

  • Hi Vinay,

    Glad to hear the issue is resolved.

    Thanks,

    Gowtham