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I'm trying to set custom 1920x1080 resolution for 19" Dell monitor. It's not listed in available resolutions but I know it's the appropriate resolution for this monitor.

I've followed xrandr - fail to set custom screen resolution (Ubuntu 16.04) as well as https://www.tecmint.com/set-display-screen-resolution-in-ubuntu/

my /etc/profile.d/external_monitor_resol.sh contains:

xrandr --newmode "1920x1080_60.00"  173.00  1920 2048 2248 2576  1080 1083 1088 1120 -hsync +vsync
xrandr --addmode XWAYLAND0 1920x1080

then I ran: xrandr --output XWAYLAND0 --mode 1920x1080 and output I got:

X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  139 (RANDR)
  Minor opcode of failed request:  21 (RRSetCrtcConfig)
  Value in failed request:  0x0
  Serial number of failed request:  22
  Current serial number in output stream:  22

Where did I go wrong ?

Mark
  • 245

1 Answers1

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I stumbled upon this https://www.youtube.com/watch?v=dLVHz7rrP8U guide which led me to solution. Main step was to edit the grub file.

Mark
  • 245