this post was submitted on 23 Jun 2024
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The flickering thing is because you're using Wayland and Nvidia GPU. If you switched to X11 (losing HDR support, unfortunately), the flickering goes away. However! I would recommend updating your system to KDE 6.1, which I believe has the explicit sync fix.
Edit: I just checked and I'm already on kDE Plasma version 6.1. And KDE Frameworks version 6.3. I wonder, do I need to undo some of the settings I made for KDE by following the Wiki if 6.1 was supposed to fix it?
I've thought about switching to x11 instead of going back to Gnome, but I haven't decided yet. HDR is definitely not worth all of these other visual glitches and latency, so I need to do something. I don't understand how the system can perform so poorly and be considered stable enough to be the default. At least half the people out there are probably using Nvidia cards.
Is there anything I should know before I switch to x11? Like, do I need to undo all these custom settings I made for the Nvidia driver, or use another driver? I'd appreciate the advice since this is one issue I've encountered that is definitely not resolved by reading the wiki.
I'm pretty sure the explicit sync fix requires the 555 beta version of the Nvidia driver to be installed, as there's a driver component that's required.
What distro are you on? If it has a decent way to install the 555 beta that would probably be a good route to go with - but otherwise, no, switching to X11 shouldn't require reverting any settings at all. I used to switch between the two sessions all the time, right before you enter your password on the login screen (you have to be completely logged out, not just at the screen lock) click the menu at the bottom right and it should have a "Plasma (X11)" option.
Thanks! I'm on Arch. I actually tried X11 last night after posting and it seems to fix the glitch. I'll see if there's a driver update for me. I appreciate the advice!
No problem! It looks like there's an AUR package for it - though exercise caution since it is still in beta. That being said, 555 has been in beta for a bit now, so I expect it'll probably be promoted to an official release imminently.
Definitely would give Wayland another try once the newer Nvidia driver is installed later on (either via the beta or the official release). I don't use an Nvidia card anymore (this bug is precisely what caused me to switch, ironically - it has been around for a while and got worse for me when 535 came around) but I've heard from a lot of folks that it resolves the flickering issue.
Either way, I'm glad to hear that you're glitch free now - and on a side note, it appears its your cake day so happy cake day!
Yaaay! Wow, a year already? Crazy.
KDE 6.1 just hit Arch repos like 3 days ago. You're likely on 6.0.5. Switching between X11 and Wayland is effortless just change the default manager in SDDM settings.
Thanks. I verified and I'm on 6.1. I forgot I ran a system update a couple days ago.
Ah okay then. As user Russ said above it's gotta be Nvidia drivers are still in beta with the fix from Nvidia side. I'm using an AMD card as well for this exact same reason. Wayland runs great on team red!