I design carrier board for Xavier NX / Nano module, when system boot up, user login screen resolution is abnormal, and after login system, then HDMI screen will loss, wait about 5~10 sec, HDMI will auto detect, monitor has display, but resolution is abnormal. What is this problem? How to solve this problem?
Log file: HDMI_Fail.log (143.7 KB)
Can I change the HDMI spec to 1.4, confirm whether it is caused by speed?
Firstly, remove the quiet in kernel cmdline.
Your kernel log is totally disabled now.
I removed the quiet in cmdline. This is logfile.
Xavier_NX_HDMI_failed.log (109.1 KB)
This looks more like hardware problem that it fails to read EDID.
No specific impedance request for such low speed lines. You can check i2c spec for detail.
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