Is there a way to set a custom resolution for a monitor or add an additional option to the resolution drop down in the display settings? Setting up an CRT with a max resolution of 1920 x 1440 @ 75Hz refresh rate, but that in not an available option in the display settings.
Yes with a kernel option like this (I use it for 1080p@75Hz on HDMI):
video='HDMI-A-1:1920x1080MR@75'
You might need to change the HDMI-A-1 port, and R might be ideal to remove for CRT.
I’ll give this a try.
Do you have a list of what options there are for video? You mentioned removing the R, I’m curious what that does and if there are other options.
Also do I add video='DVI-D-1:1920x1080MR@75' directly to /etc/default/grub or does the line need to be GRUB_CMDLINE_LINUX_DEFAULT="video=DVI-D-1:1920x1080MR@75" ?
Don’t worry about the other options, I did some more googleing and found what I was looking for regarding that.
How do you apply the kernel option? Via grubby? Via etc/default/grub?
Tried both and am unable to get either to work.