Other Parts Discussed in Thread: AM67, , SN65DSI86
Tool/software:
Hi All,
We are currently evaluating DisplayPort output on AM67 (J722SXH01EVM).
Currently, HDMI displays normally, but DP does not display images.
・Environment
- Board: J722SXH01EVM
- Monitor: www.amazon.co.jp/.../
- DP Cable: www.amazon.co.jp/.../
- Root FS: Demo version SD card (DP not supported), kernel/DTB replaced with custom-built ti-linux-kernel
- Kernel: ti-linux-kernel (branch ti-linux-6.12.y, commit ID: e6ed2862fe19bd0c8901ecfaa15a3805209d40bd, tag: 11.01.06)
・Issues
software-dl.ti.com/.../DSS7.html
Referring to the above, I attempted to output video to the monitor using modetest and kmstest.
With HDMI, the same colour bars as in the above procedure are displayed,
but with DP, the message ‘No video signal available’ is displayed, and there is no change on the screen.
The following log is output with DP, but this is a fallback associated with eDP table reference and is not directly related to DP operation.
*ERROR* No matching eDP rates in table; falling back
• Question
Is there a procedure manual for DP display on (722S EVM + SN65DSI86 + ti-linux-kernel)?
If there are any recommended tools other than modetest or kmstest for display, please let me know.
If you can provide an answer, I will send the log via private message.
If there are any additional logs you need, please specify (I can provide a full dmesg log, etc., as needed).
Best Regards,
Ito
