I've had no problems at all until yesterday.
I booted up Ubuntu and the highest res. I can set is 1600x900 ( my monitor is 2560x1440 )
I used to have it set to native no problem however now it has disappeared ?
I have installed all the drivers but still no luck.
GPU is a 3060ti over display port.
I turned freesync off then back on again in my monitors menu, now it's working fine