First you have to choose Wayland session instead of X11.
Then in ~/.config/kwinrc
[Compositing]
Backend=Vulkan
Sure, the screen could have been sharper (only FHD), but at least now I don't feel this pain at the back of my eyes when I look at it.
Let me know if that helped 
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This thread is year old. Kubuntu 24.04 was released end of April. The code I pasted is from my own running installation. It’s pretty new tech compared to the graphics core in Linux that is decades old, so there might be something how it handles latest gear. I encourage you to try it as in my case the different was quite striking. You can also update the kernel to version >6.8.40 where the xe driver was finally merged instead of i915 for Intel cards. But it also works on kernel 6.8.33 which ships with kubuntu 24.04
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moonpie I tried XRandr and OpenGL backends and the image was causing me headaches. It’s only with this latest version of Kubuntu when I put Vulkan as a backend I experience no pain. Vulkan and XRandr backends produce different image quality on my laptop. So I assume Vulkan in my setup is something different than software rendering. I can only say try this setup yourself. I don’t get any bugs and rendering is working.
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If you just want to turn off the compositor, just do it in the settings, or press shift-alt-F12.
Sunspark On my crunch bang plus plus Debian install, all you have to do is remove the cbpp-compositor line from your ~/.config/openbox/autostart:
(\ nitrogen --restore && \ cbpp-compositor --start && \ sleep 2s && \ tint2 \ ) &
And that disable compositing. That results in a pretty decent desktop for me
ensete Thanks for the tip I tried this (pasted those lines one by one, don't know how else to do it a .sh file?) and I get this error message:
"tint2: another systray is running, cannot use systray"
What shuld I do?
Well, the first thing you should do is know what environment people are using.
My comment was for KDE, ensete's was for openbox wm, yours is for xfce.
I don't agree disabling compositing is necessary every time.
But for xfce, you can do this: settings > desktop settings > select Xfwm4 instead of Xfwm4 + compositing
ensete oh I think I got it! It's working really well, I think it solved my problems on my 2014 asus laptop!!! Now do you think I would ruin everything if I install chromium, parsec (with its dependencies) and qredshift? what should we avoid installing for our case? Thank you
Sunspark I'm a complete noob with linux, I just tried this crunchbang os and I'm loving how the screen feels, so I'll use it with VNC to my main machine
Solus 4.6, KDE Plasma 6.2.4. Vulkan is available in system menu both for Wayland and for X11
