i.MX Processors中的主题 Re: Display not working: Android IMX8 Quad Max

Display not working: Android IMX8 Quad Max

dgohlya — Fri, 18 Jun 2021 00:11:51 GMT

./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?

Re: Display not working: Android IMX8 Quad Max

joanxie — Mon, 21 Jun 2021 09:50:56 GMT

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?

Re: Display not working: Android IMX8 Quad Max

dgohlya — Mon, 21 Jun 2021 16:23:56 GMT

Android 10.

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

Re: Display not working: Android IMX8 Quad Max

joanxie — Wed, 23 Jun 2021 08:41:20 GMT

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?

Re: Display not working: Android IMX8 Quad Max

dgohlya — Fri, 25 Jun 2021 18:26:29 GMT

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

Re: Display not working: Android IMX8 Quad Max

joanxie — Tue, 03 Aug 2021 08:59:51 GMT

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