We are doing a design with the DRA726 but until we get the hardware I am using some TMDSEVM572X Evaluation Modules.
I downloaded the automotive SDK which I am using as a base. Since it doesn't cover that Automotive Evaluation board I recreated the SDK using am57xx-evm as a machine. In rare occasion it will boot up with the Matrix running. Most of the time I get "Please wait ..." on the screen. Sometimes it has weston screen briefly on the screen. I can start weston and the matrix if I restart the systemd services.
During my few days of vacation I played around with my Beaglebone Black and Beagle Bone Green and found out that I have a similar issue with the Beaglebone Black. With the beaglebone green I have a different issue, it will not recognize the LCD 4 inches display.
For the beaglebone I use a different SDK, one built using the instructions on the TI Website but with the machine beaglebone
On boot I have the same issue as with the EVM572x with the difference that I have an HDMI monitor (1920x1080) with no sound connected to it. And yes the micro HDMI cable is good. I got that one from Menard, the ones that I had from Odroid weren't working with their boards.
My monitor does support the low resolution mode that the beaglebone black supports. From what I read that board doesn't support any decent resolution but it doesn't matter that much for what I want to use the board for. I should at least get a display with no crash.
I can start the services and I have not seen any crash as long as I do not turn the monitor off. I had it running all day and all night with the LCD monitor on and no crash. For the few days where I would turn the monitor off it would crash. One day I went out and turned the monitor off before I left, when I came back and turned the monitor back on I found out that weston had crashed.
Michel
