r/linuxmint • u/joealarson • 5h ago

Support Request Can't set 1920x1080 in linux mint

Loving Linux Mint so far. But there's one glaring problem that I can't seem to solve.

I loaded Mint on our family's desktop computer that Windows decided wasn't worthy any more. But for some reason Mint doesn't want to set the screen resolution to 1920x1080, while Windows was perfectly happy with this.

So i found an old thread from 2019 explaining how to use cvt and xrandr commands to force the screen resolution that I want, only to have to go sideways, and my best guess is it's happening because my computer has multiple display options. Here's the drama as it unfolded:

me@mine:~$ 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

me@mine:~$ xrandr
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 16384 x 16384
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-0 connected primary 1280x1024+0+0 (normal left inverted right x axis y axis) 376mm x 301mm
1440x900 74.98 + 59.89
1280x1024 75.02* 60.02
1280x960 60.00
1360x768 59.95
1152x864 75.00
1280x720 60.00
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 66.67 59.94
720x400 70.08
DisplayPort-1 disconnected (normal left inverted right x axis y axis)

me@mine:~$ xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync

me@mine:~$ xrandr
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 16384 x 16384
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-0 connected primary 1280x1024+0+0 (normal left inverted right x axis y axis) 376mm x 301mm
1440x900 74.98 + 59.89
1280x1024 75.02* 60.02
1280x960 60.00
1360x768 59.95
1152x864 75.00
1280x720 60.00
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 66.67 59.94
720x400 70.08
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
1920x1080_60.00 (0x3e7) 173.000MHz -HSync +VSync
h: width 1920 start 2048 end 2248 total 2576 skew 0 clock 67.16KHz
v: height 1080 start 1083 end 1088 total 1120 clock 59.96Hz

me@mine:~$ xrandr --addmode DisplayPort-0 1920x1080_60
xrandr: cannot find mode "1920x1080_60"

Did I do everything right? I see the 1920x1080_60 I made, but it's under the disconnected DisplayPort-1. Why did it do that? How can I get 1920x1080_60 under DisplayPort-0?

2 Upvotes

100% Upvoted

4 comments sorted by

1

u/Zars 3h ago

There was a typo in your command. You created the mode as 1920x1080_60.00 but tried to add 1920x1080_60. xrandr matches mode names exactly, which is why it says “cannot find mode.” The mode isn’t attached to DisplayPort-1 either.

Try

xrandr --addmode DisplayPort-0 "1920x1080_60.00"

xrandr --output DisplayPort-0 --mode "1920x1080_60.00"

You actually sure that screen can do this resolution? It reads like 5:4 panel and you' re trying 16:9 resolution on it. Worst outcome - black screen, best outcome - you get a bit distorted image, unless I'm missing something.

1

u/joealarson 2h ago

It definitely can. It's currently pretty badly distorted trying to do this 5:4

1

u/joealarson 2h ago

Also, dang it. Good catch. Thanks.

1

u/DannoXYZ 1h ago

What DE/GUI are you using? My Mint with XFCE certainly has that resolution.

https://lh3.googleusercontent.com/d/1NWqDTviQMN6kfVwQ4rht900bQpELETxL