rammfire Posted January 4, 2023 Share Posted January 4, 2023 Good afternoon. The problem is indicated in the title. The computer is connected to my monitor via HDMI and the screen resolution is only 1024x768. Which is inconvenient to use. I saw a similar topic raised on the official forum of a single-payer in 2019, but no one answered there. Is this a problem of the computer itself or the Linux kernel or drivers? 0 Quote Link to comment Share on other sites More sharing options...
atone Posted January 4, 2023 Share Posted January 4, 2023 Hi, did you tried this https://docs.armbian.com/User-Guide_Fine-Tuning/#screen-resolution-on-other-boards? 1 Quote Link to comment Share on other sites More sharing options...
jernej Posted January 4, 2023 Share Posted January 4, 2023 10 hours ago, rammfire said: 1024x768 That is default fallback resolution when kernel can't read resolution info from display (on all platforms and architectures). There can be multiple reasons, like cable, monitor, some kernel/driver issue... 0 Quote Link to comment Share on other sites More sharing options...
rammfire Posted January 4, 2023 Author Share Posted January 4, 2023 @atone Цитата Hi, did you tried this https://docs.armbian.com/User-Guide_Fine-Tuning/#screen-resolution-on-other-boards? Thanks. This particular line of code helped me. xrandr --newmode "1440x900_60.00" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync However, when I try to execute this line of code, I get an error. xrandr --output HDMI-1 --mode 1920x1080_60.00 xrandr: cannot find mode 1920x1080_60.00 I don't fully understand how to execute this command, or will I fail to raise the screen resolution to the desired result? 0 Quote Link to comment Share on other sites More sharing options...
atone Posted January 4, 2023 Share Posted January 4, 2023 I think you maybe skipped a step: before setting the display to a specific mode (--output), you need to add this mode to the display first (--addmode). 0 Quote Link to comment Share on other sites More sharing options...
atone Posted January 4, 2023 Share Posted January 4, 2023 45 minutes ago, rammfire said: will I fail to raise the screen resolution to the desired result? If you see nothing anymore, just reboot. 0 Quote Link to comment Share on other sites More sharing options...
rammfire Posted January 6, 2023 Author Share Posted January 6, 2023 @atone Good morning. Thank you for your tips on what to read. This page finally helped me: https://askubuntu.com/questions/138408/how-to-add-display-resolution-for-an-lcd-in-ubuntu-12-04-xrandr-problem xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync xrandr --addmode HDMI-1 1920x1080_60.00 0 Quote Link to comment Share on other sites More sharing options...
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