Linux: Dual display configuration with Android O

Hi Jackie,

Please check the revision of the J6EVM under test. As per the 6AO release note, only the Rev H J6Evm is supported.

Using the 6AO prebuilt binaries, on the J6Rev H EVM, with an HDMI display plugged in, and an OSD LCD (1920x1080) display connected to the CPU board, the OSD LCD on VOUT1 will be the primary display, and the HMI will be mirrored on the HDMI display.

Could you please provide some further details such as how the displays are connected to the EVM under test, and if VOUT1 is working in the test setup?

Thanks,

KB

Sorry, the reference board is damaged, so I don't verify it, but I am sure the hardware is good, since if I flashed the QNX version, it can work fine, we make the new board only replacing some similar component and reducing some unused component.

I changed it with following reference changes, get same result ,Vout1 and Vout2 can't work.

review.omapzoom.org/

Thanks
Jackie

Hi Jackie,

Thanks for the information, you are on the right track with the changes shown in the link provided.  The below links can be used along with the link you had provided for some further context on those changes were done for.

https://e2e.ti.com/support/arm/automotive_processors/f/1020/p/657380/2415594?tisearch=e2e-sitesearch&keymatch=DRA7%20vout2#2415594

http://processors.wiki.ti.com/index.php/Processor_SDK_Linux_Automotive_Display_FAQ#Testing_multiple_LCD_displays_on_the_EVM

The 6AO release will default to VOUT1 as primary display if present, recommend starting the debug on that interface before proceeding with adding of VOUT2.

Are there any errors being seen?  Have display timings been added for the display that is attached to VOUT1?

Regards,

KB

thanks very much, I configured the timing followed the QNX configuration. since we used the same touchscreen

The QNX configuration is "

#define MODELINE(mhz, h1, h2, h3, h4, v1, v2, v3, v4, f) \
    { .pixel_clock_kHz = (mhz) * 1000, \
    .hpixels = (h1), .hfp = (h2) - (h1), .hsw = (h3) - (h2), .hbp = (h4) - (h3), \
    .vlines  = (v1), .vfp = (v2) - (v1), .vsw = (v3) - (v2), .vbp = (v4) - (v3), \
    .flags = (f), } \

       

/* 1920x720 @ 28Hz 45.43MHz +HSync +VSync
 h: width  1920 start 1980 end 2000 total 2080 skew    0
 v: height  720 start  722 end  723 total  780           */
     {
        .mode = MODELINE(45.43, 1920, 1980, 2000, 2080, 720, 722, 723, 780, 0),
        .mode_ext = NULL,
    },

"

So I configured the timing is "

panel-timing {
clock-frequency = <45430000>;
hactive = <1920>;
vactive = <720>;

hfront-porch = <60>;
hsync-len = <32>;
hback-porch = <80>;

vfront-porch = <2>;
vsync-len = <4>;
vback-porch = <57>;

hsync-active = <0>;
vsync-active = <0>;
de-active = <1>;
pixelclk-active = <1>;
};

"

but I run the "modetest", it seems that the vout is not working....

127|jacinto6evm:/ # modetest
trying to open device 'i915'...failed
trying to open device 'radeon'...failed
trying to open device 'nouveau'...failed
trying to open device 'vmwgfx'...failed
trying to open device 'omapdrm'...done
Encoders:
id crtc type possible crtcs possible clones
31 34 TMDS 0x00000001 0x00000000
35 38 TMDS 0x00000002 0x00000000
39 0 TMDS 0x00000000 0x00000000
41 0 TMDS 0x00000000 0x00000000

Connectors:
id encoder status name size (mm) modes encoders
32 31 connected HDMI-A-1 0x0 5 31
modes:
name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
1024x768 60 1024 1048 1184 1344 768 771 777 806 flags: nhsync, nvsync; type: driver
800x600 60 800 840 968 1056 600 601 605 628 flags: phsync, pvsync; type: driver
800x600 56 800 824 896 1024 600 601 603 625 flags: phsync, pvsync; type: driver
848x480 60 848 864 976 1088 480 486 494 517 flags: phsync, pvsync; type: driver
640x480 60 640 656 752 800 480 490 492 525 flags: nhsync, nvsync; type: driver
props:
1 EDID:
flags: immutable blob
blobs:

value:
2 DPMS:
flags: enum
enums: On=0 Standby=1 Suspend=2 Off=3
value: 0
36 35 connected unknown-1 0x0 1 35
modes:
name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
1920x720 28 1920 1980 2012 2092 720 722 726 783 flags: nhsync, nvsync; type: preferred, driver
props:
1 EDID:
flags: immutable blob
blobs:

value:
2 DPMS:
flags: enum
enums: On=0 Standby=1 Suspend=2 Off=3
value: 0
40 0 connected unknown-2 0x0 1 39
modes:
name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
1920x720 28 1920 1980 2012 2092 720 722 726 783 flags: nhsync, nvsync; type: preferred, driver
props:
1 EDID:
flags: immutable blob
blobs:

value:
2 DPMS:
flags: enum
enums: On=0 Standby=1 Suspend=2 Off=3
value: 0
42 0 connected unknown-3 0x0 1 41
modes:
name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
1920x720 28 1920 1980 2012 2092 720 722 726 783 flags: nhsync, nvsync; type: preferred, driver
props:
1 EDID:
flags: immutable blob
blobs:

value:
2 DPMS:
flags: enum
enums: On=0 Standby=1 Suspend=2 Off=3
value: 0

CRTCs:
id fb pos size
34 50 (0,0) (1024x768)
1024x768 60 1024 1048 1184 1344 768 771 777 806 flags: nhsync, nvsync; type: driver
props:
27 trans-key-mode:
flags: enum
enums: disable=0 gfx-dst=1 vid-src=2
value: 0
28 trans-key:
flags: range
values: 0 16777215
value: 0
29 background:
flags: range
values: 0 16777215
value: 0
30 alpha_blender:
flags: range
values: 0 1
value: 0
21 GAMMA_LUT:
flags: blob
blobs:

value:
22 GAMMA_LUT_SIZE:
flags: immutable range
values: 0 4294967295
value: 256
23 rotation:
flags: bitmask
values: rotate-0=0x1 rotate-90=0x2 rotate-180=0x4 rotate-270=0x8 reflect-x=0x10 reflect-y=0x20
value: 1
24 zorder:
flags: range
values: 0 3
value: 0
38 55 (0,0) (1920x720)
1920x720 28 1920 1980 2012 2092 720 722 726 783 flags: nhsync, nvsync; type: preferred, driver
props:
27 trans-key-mode:
flags: enum
enums: disable=0 gfx-dst=1 vid-src=2
value: 0
28 trans-key:
flags: range
values: 0 16777215
value: 0
29 background:
flags: range
values: 0 16777215
value: 0
30 alpha_blender:
flags: range
values: 0 1
value: 0
21 GAMMA_LUT:
flags: blob
blobs:

value:
22 GAMMA_LUT_SIZE:
flags: immutable range
values: 0 4294967295
value: 256
23 rotation:
flags: bitmask
values: rotate-0=0x1 rotate-90=0x2 rotate-180=0x4 rotate-270=0x8 reflect-x=0x10 reflect-y=0x20
value: 1
24 zorder:
flags: range
values: 0 3
value: 0

Planes:
id crtc fb CRTC x,y x,y gamma size possible crtcs
33 34 50 0,0 0,0 0 0x00000001
formats: RG16 RX12 XR12 RA12 AR12 XR15 AR15 RG24 RX24 XR24 RA24 AR24
props:
5 type:
flags: immutable enum
enums: Overlay=0 Primary=1 Cursor=2
value: 1
23 rotation:
flags: bitmask
values: rotate-0=0x1 rotate-90=0x2 rotate-180=0x4 rotate-270=0x8 reflect-x=0x10 reflect-y=0x20
value: 1
24 zorder:
flags: range
values: 0 3
value: 0
25 global_alpha:
flags: range
values: 0 255
value: 255
26 pre_mult_alpha:
flags: range
values: 0 1
value: 1
37 38 55 0,0 0,0 0 0x00000002
formats: RG16 RX12 XR12 RA12 AR12 XR15 AR15 RG24 RX24 XR24 RA24 AR24 NV12 YUYV UYVY
props:
5 type:
flags: immutable enum
enums: Overlay=0 Primary=1 Cursor=2
value: 1
23 rotation:
flags: bitmask
values: rotate-0=0x1 rotate-90=0x2 rotate-180=0x4 rotate-270=0x8 reflect-x=0x10 reflect-y=0x20
value: 1
24 zorder:
flags: range
values: 0 3
value: 0
25 global_alpha:
flags: range
values: 0 255
value: 255
26 pre_mult_alpha:
flags: range
values: 0 1
value: 0
43 34 56 0,0 0,0 0 0x00000003
formats: RG16 RX12 XR12 RA12 AR12 XR15 AR15 RG24 RX24 XR24 RA24 AR24 NV12 YUYV UYVY
props:
5 type:
flags: immutable enum
enums: Overlay=0 Primary=1 Cursor=2
value: 0
23 rotation:
flags: bitmask
values: rotate-0=0x1 rotate-90=0x2 rotate-180=0x4 rotate-270=0x8 reflect-x=0x10 reflect-y=0x20
value: 1
24 zorder:
flags: range
values: 0 3
value: 1
25 global_alpha:
flags: range
values: 0 255
value: 255
26 pre_mult_alpha:
flags: range
values: 0 1
value: 1
44 34 59 0,0 0,0 0 0x00000003
formats: RG16 RX12 XR12 RA12 AR12 XR15 AR15 RG24 RX24 XR24 RA24 AR24 NV12 YUYV UYVY
props:
5 type:
flags: immutable enum
enums: Overlay=0 Primary=1 Cursor=2
value: 0
23 rotation:
flags: bitmask
values: rotate-0=0x1 rotate-90=0x2 rotate-180=0x4 rotate-270=0x8 reflect-x=0x10 reflect-y=0x20
value: 1
24 zorder:
flags: range
values: 0 3
value: 2
25 global_alpha:
flags: range
values: 0 255
value: 255
26 pre_mult_alpha:
flags: range
values: 0 1
value: 1

Frame buffers:
id size pitch

jacinto6evm:/ #

Thanks
Jackie