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Sounds like a memory leak. Have you checked your RAM and GPU memory when this happens? You can use btop and nvtop. If it's a memory leak, it shouldn't happen with every game though.
Just got the bug to appear again. Plasma monitor shows 8.1/15.4GB of ram being used, but nvtop shows 100% GPU memory being used.
If the LD_PRELOAD="" command doesn't work, I'll see what I can do about the vram usage.
Try lowering some VRAM-heavy graphics settings. This was happening with Elite Dangerous to me with Proton 6. It was fixed with later Proton releases but until then I played with lowered VRAM-heavy settings.
Pass LD_PRELOAD="" as an argument on steam for the games that do this. It will fix your problem.
I'll try it later and see if it fixes, thank you.
Also, thanks @noodlejetski@lemm.ee as well for this tip.
Hmm what is steam loading by default that clearing it would solve it?
afaik its for the new screen recording feature
Try disabling the steam overlay I had this issue with doom eternal. Assuming it's on steam and since I believe this is ac syndicate disable there overlay aswell has this problem with division 2
yup, and if that doesn't fix the problem, try adding LD_PRELOAD="" to the game's launch parameters
https://github.com/ValveSoftware/steam-for-linux/issues/11446
This, and specifically, you can also try disabling steam in game recording for whatever game is giving you trouble. I have found it to nuke performance in some games similar to what you are describing.
By disabling the ac syndicate overlay you mean the ubisoft one?
Yes that one in the launcher settings and as noodlejetski said that command should do the same thing I think
Are you monitoring component temperatures?
No. That's a good idea, I'll start doing it.
Yeah the fact that it takes a while to start happening leads me to believe you may be thermal throttling somewhere.
Have you tried changing whatever compatibility layer you're using? Sometimes, I have some visual glitches and changing from, for example, GE-proton to proton experimental fixes it. Install an app called "protonplus" and find more compatibility layers from different folks.
I think heat
Alternatively, since it looks like you're running on battery, does something in your setup change to a "low power" performance mode that throttles your system?
since it looks like you’re running on battery
Sorry for that, I ran fastfetch when I wasn't playing, but I always play using the charger. My laptop decreases it's performance when on battery, but it doesn't wait for low battery to decrease, it's instantaneous.
Is it only when you use the mouse or keyboard? Used to have something similar a few years ago on my Steam Deck with some games. Never figured out what it was and I think it doesn't happen anymore.
Consider disabling gamemoderun if you're using it.
this post was submitted on 11 May 2025
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