Adding Undetected Resolutions Link to heading
Run the cvt or gtf to get the modeline for the resolution i want :
$ gtf 2560 1440 144
# 2560x1440 @ 144.00 Hz (GTF) hsync: 225.36 kHz; pclk: 807.69 MHz
Modeline "2560x1440_144.00" 807.69 2560 2784 3072 3584 1440 1441 1444 1565 -HSync +Vsync
[!Note] GTF : Generalized Timing Formula CVT : Coordinated Video Timing
- 2560 : horizontal resolution
- 1440 : vertical resolution
- 144 : refresh rate Replace accordingly
Create a new xrandr mode :
xrandr --newmode "2560x1440_144.00" 807.69 2560 2784 3072 3584 1440 1441 1444 1565 -HSync +Vsync
Add this mode to my current output : Replace VGA1 accordingly
xrandr --addmode VGA1 2560x1440_144.00
Change the resolution of the screen to the one i just added :
xrandr --output VGA1 --mode 2560x1440_144.00
This only applies to the current session.
For applying these in startup :