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The issue is that the desktop's resolution was working well, then after a reboot it set to the default low res. If I set it to 1600x900, then the display ends about 1.5 cm from the top of the screen and is about 5 pixels too left. Another complication is that I have a VGA switch between the PC and the monitor. I ran "Custom Screen Resolution GUI" and it calculated the screen res max to be 1920x1080. I can create and add the new mode (as it isn't in xrandr's list) but I can't switch to it.

$ xrandr Screen 0: minimum 320 x 200, current 1600 x 900, maximum 16384 x 16384 HDMI-1 disconnected (normal left inverted right x axis y axis) HDMI-2 disconnected (normal left inverted right x axis y axis) DP-1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 256mm x 192mm 1024x768 60.00 + 1600x900 60.00* 1280x1024 60.02 1440x900 59.89 1280x960 60.00 1366x768 59.79 1280x720 60.00 800x600 60.32 640x480 59.94 1920x1080_60.00 59.98 3840x2160_60.00 59.98 HDMI-3 disconnected (normal left inverted right x axis y axis) 
$ cvt 1920 1080 # 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync 
$ xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync --verbose X Error of failed request: BadName (named color or font does not exist) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 16 (RRCreateMode) Serial number of failed request: 29 Current serial number in output stream: 29

I've scanned the similar questions. The graphics card is an onboard one, so no nvidia driver issues. I have tried Change screen resolution on Linux Mint but keeps getting to the same fault. I also used ChatGPT to assist in the commands to diagnose the issue. These are the suggested commands and results after I told it about the BadName error:

$ cat /var/log/Xorg.0.log | grep -i error (WW) warning, (EE) error, (NI) not implemented, (??) unknown. 
$ xrdb -query *customization: -color Xft.dpi: 96 Xft.antialias: 1 Xft.hinting: 1 Xft.hintstyle: hintslight Xft.rgba: rgb 
$ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation CoffeeLake-S GT2 [UHD Graphics 630]

Then it ran out of suggestions. (Our IT jobs are still safe ;-))

Any suggestion what next command to run to diagnose the issue?

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  • VGA is a very old and universal format. It is not supposed to be used at high resolution. Nowadays, VGA is a rescue mode, if native drivers fail. What are your native drivers? What is your video card? Commented Apr 1, 2023 at 14:10
  • @WhiteOwl the OP has included lspci output showing the card details. Commented Apr 1, 2023 at 14:29
  • Had to do a hard shut down and boot up, now 1920x1080 (without the _60.00) is in the list of the Display app and I could set it to that value and it works. Not sure why it didn't work the whole day with multiple reboots... Commented Apr 1, 2023 at 20:15

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Reset to default

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