Sorry, I've been wrapped up on on other problems on my development project. I will try to test the larger display next week. I have a feeling the 1280x720 resolution is too high for the 2 channel DSI without reducing colour depth and/or refresh.
I'm not sure. My display is 800x480 and is running correctly. Did you modify the dw-mipi-dsi.c routine I mentioned above to endure the horizontal active area is passed to the timing routine, not the horizontal total. I will try to a 1280 by 720 hd...
If modetest can't find your display you may have a problem with ADV7533 detect race condition. In the adv7511_drv.c file, I had to move the adv7533_attach_dsi(adv) call from adv7511_bridge_attach(...) routine to the end of adv7511_probe(..) routine...
I managed to get B-LCDAD-HDMI adapter working with my custom board stm32mp157c board. I had to modify some source files in the linux kernel driver. The base version I'm using is 5.13.5-armv7-lpae-x13. I modified the file KERNEL/drivers/gpu/drm/...
Just curious if you managed to get B-LCDAD-HDMI adapter working with you board. I'm trying on my custom board but I can't get a stable test image from modetest. Everything is recognized but the ltdc timings don't seem to be setting. When I enable...