Second monitor resolution stopped working since recent upgrade to Ubuntu 21.04

gordonr

10/27/22, 9:39 AM

Summary:

My second monitor resolution has stopped working since recent upgrade to Ubuntu 21.04. From my (very limited) understanding, it looks like it no longer reads the text I have had in the .xprofile file.

Details:

I recently upgraded to Ubuntu 21.04. I have an second monitor (an old Dell) attached to the laptop. This monitor works best at 1920x1080. For the last couple of years, the only way I could have this working was by having the following text in an .xprofile file in the Home directory. But this was working fine.

xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync xrandr --addmode VGA-0 "1920x1080_60.00" xrandr --output VGA-0 --mode "1920x1080"

However, since the upgrade to 21.04, the second monitor as reverted to resolution 1024 x 768 and (looking in settings) only has resolutions "1024 x 768" and "800 x 600" available.

If I do xrandr in Terminal, I see that the external monitor is now called "XWAYLAND1", but even if I adapt the .xprofile text as below, it does not help.

xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync xrandr --addmode XWAYLAND1 "1920x1080_60.00" xrandr --output XWAYLAND1 --mode "1920x1080"

Also, if I put the above three commands one after another straight into Terminal, I get the following error:

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: 0x640 Serial number of failed request: 29 Current serial number in output stream: 29

Can anyone advise?

0 + 0

display

multiple-monitors

display-resolution

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Second monitor resolution stopped working since recent upgrade to Ubuntu 21.04

TH: ความละเอียดจอภาพที่สองหยุดทำงานตั้งแต่อัปเกรดเป็น Ubuntu 21.04 ล่าสุด

RO: A doua rezoluție a monitorului a încetat să funcționeze de la actualizarea recentă la Ubuntu 21.04

RU: Разрешение второго монитора перестало работать после недавнего обновления до Ubuntu 21.04.

VI: Độ phân giải màn hình thứ hai đã ngừng hoạt động kể từ khi nâng cấp lên Ubuntu 21.04 gần đây

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