Display not working: Android IMX8 Quad Max

[dgohlya]

./uuu_imx_android_flash.sh -f imx8qm -a -e -u trusty

Used the above command to flash android to HW. On rebooting was able to see the display, android was succeessfully installed.

On removing the cable and rebooting again, the Display was gone.

How can I bring back the display?

[dgohlya]

Android 10.

I removed the power cable and rebooted. I also tried removing the HDMI display and trying again. That did not work too.

[joanxie]

android 10 what？android 10.0.0_2.5.0?

do you mean you remove the power cable then insert the power cable back, the board couldn't boot up again? anything output from the uart port?

[dgohlya]

I have attached the minicom logs.

11.0.0_1.0.0_DEMO_8Q and  Q10.0.0_2.6.0_DEMO_8Q were the images I tried withWe also looked at android logcat and we see this:

Like I said, we did see the display once and cannot see it anymore.

Another piece of information is, we see the below in adb logcat logs

E display : updateScreen invalid drmfd

[joanxie]

I have tested android 11.0.0_2.0.0, I couldn't reproduce this issue

1) connect the hdmi then boot up, then disconnect the cable then connect back, the hdmi display come back

2) connect the hdmi and boot up, then disconnect the cable of hdmi, then reboot up the board and connect the cable back, the hdmi display shows the logo successfully

[joanxie]

On removing the cable and rebooting again, the Display was gone

>what cable do you mean? did you remove the cable between board and display?

do you mean you remove the cable between board and display, then connect the cable and reboot again?

and what android version do you use?