Hello, fresh installed Armbian desktop OS detects attached HDMI display as full HD with correct resolution 1920x1080. But after some restarts it loads in u-boot with correct resolution and then, on kernel startup switches to 1024x768 and also desktop opens with this resolution without an option to increase it. The armbianEnv.txt file in /boot folder  contains string

disp_mode=1920x1080p60

and was not changed. Please advise.

You don't provide any specific details on what you have installed.

 

Providing logs with 

armbianmonitor -u

 helps with troubleshooting and significantly raises chances that issue gets addressed.

Hello, thank you for quick response. Unfortunately, I already burned fresh image. As soon as it happens again, I will collect the required details and attach here.

Hello, I did fresh installation, but the problem happened immediately. The file is uploaded to http://ix.io/4fXI URL. I know that the display works correctly, when attached to Windows computer.

Maybe this helps. After I sent previous message, I connected the display to Windows computer and then back to Orange (turned off) and restarted it. This time the resolution is correct. Can it be hardware problem with HDMI connector?

https://github.com/armbian/build/pull/4399