Hi! I have just done a fresh install of Fedora 31 KDE Plasma as I just moved from Windows and am a complete linux noob. I noticed that on my widescreen monitor there is an abundant amount of screen tearing if I set the resolution to 2560x1080. It flickers through a bunch of different colours and gets intense if I move the mouse. When i set the resolution to 1920x1080 the flicker goes down a lot but is still there.
I have tried changing the compositor to Full screen repaints but that doesn’t fix the issue. On researching I found it could be my graphics driver. I have no clue how to swap to the amdgpu module to test.
you would need the intel driverson x86 it looks like you are using the drivers for the wrong arcitecher and AMD too, I have no idea how to help but I hope it helps
Why? It is mean dual graphics. Each device has its own drivers. Intel integrated has i915 (it is a fresh install, it is rather not a mistake). AMD uses radeon (why not amdgpu, though?).
Like I said when I change the resolution from 2560x1080 to 1920x1080 the issue goes down but isn’t completely gone. With the side note of the screen looking stretched as it as a 2560x1080 monitor
Sudo dnf update returns all dependencies are up to date. Will attempt to use modprobe to load the correct drivers and report back if the issue is fixed
"Simply add module_blacklist=modname1,modname2,modname3 to your bootloader’s kernel line, as described in Kernel parameters.
Note: When you are blacklisting more than one module, note that they are separated by commas only. Spaces or anything else might presumably break the syntax."
you will need first edit your file etc/default/grub.conf and add the parameter
After you will regenerate the grub with
if UEFI system: sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
if BIOS system: sudo grub2-mkconfig -o /boot/grub2/grub.cfg
You know more about if you use BIOS or UEFI just check it with lsbk if you see a efi partition you are in UEFI if you see BIOS you are bios also you can check through it
the method that did indicate @vits95 also should work but the command in the boot parameter in fedora should be if i am not wrong rd.driver.blacklist=<module> and you would generate a blacklist.conf file and regenerate your initramfs (initrd) Referens below: