DLPDLCR2000EVM: VSYNC frequency issue with BBB

Hello Simone,

Welcome to the E2E forum. Thank you for your business! When installing the overlay, did you follow any tutorial such as this one? Did you change DLPDLCR2000-00A0.dts to the correct video timings? Calculator for the following values can be found here. 

display-timings {
native-mode = <&timing0>;
timing0: 640x360 {
clock-frequency = <18000000>;
hactive = <640>;
vactive = <360>;
hfront-porch = <16>;
hback-porch = <80>;
hsync-len = <64>;
vback-porch = <8>;
vfront-porch = <3>;
vsync-len = <5>;
hsync-active = <0>;
vsync-active = <0>;
};

Best,

Maxine

Hello Maxine,
thanks for your assistance.
I've seen that tutorial and also this one.

Eventually I used ./install.sh inside the bb.org-overlays repository to recompile DLPDLCR2000-00A0.dts with your timings and put DLPDLCR2000-00A0.dtbo inside /boot/uboot/ folder and nothing changed... 

I edited the uEnv.txt:

#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0

uname_r=5.4.106-ti-r42
#uuid=
#dtb=

###U-Boot Overlays###
###Documentation: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays
###Master Enable
enable_uboot_overlays=1
###
###Overide capes with eeprom
uboot_overlay_addr0=DLPDLCR2000-00A0.dtbo
#uboot_overlay_addr0=<file0>.dtbo
#uboot_overlay_addr1=<file1>.dtbo
#uboot_overlay_addr2=<file2>.dtbo
#uboot_overlay_addr3=<file3>.dtbo
###
###Additional custom capes
#uboot_overlay_addr4=DLPDLCR2000-00A0.dtbo
#uboot_overlay_addr4=<file4>.dtbo
#uboot_overlay_addr5=<file5>.dtbo
#uboot_overlay_addr6=<file6>.dtbo
#uboot_overlay_addr7=<file7>.dtbo
###
###Custom Cape
#dtb_overlay=<file8>.dtbo
###
###Disable auto loading of virtual capes (emmc/video/wireless/adc)
#disable_uboot_overlay_emmc=1
disable_uboot_overlay_video=1
#disable_uboot_overlay_audio=1
#disable_uboot_overlay_wireless=1
#disable_uboot_overlay_adc=1
###
###Cape Universal Enable
enable_uboot_cape_universal=1
###
###Debug: disable uboot autoload of Cape
#disable_uboot_overlay_addr0=1
#disable_uboot_overlay_addr1=1
#disable_uboot_overlay_addr2=1
#disable_uboot_overlay_addr3=1
###
###U-Boot fdt tweaks... (60000 = 384KB)
#uboot_fdt_buffer=0x60000
###U-Boot Overlays###

console=ttyS0,115200n8
cmdline=vt.global_cursor_default=0 coherent_pool=1M net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet

#In the event of edid real failures, uncomment this next line:
#cmdline=coherent_pool=1M net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet video=HDMI-A-1:1024x768@60e

#Use an overlayfs on top of a read-only root filesystem:
#cmdline=coherent_pool=1M net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet overlayroot=tmpfs

##enable Generic eMMC Flasher:
#cmdline=init=/usr/sbin/init-beagle-flasher

Also, without that .dtbo inside the uboot folder the DLP2000 doesn't work at all confirming that is effectively using the edited cape.

Best Regards,

Simone