cross-posted from: https://discuss.online/post/34255100
Thought I’d create a distinct thread from the previous one asking about daily use, because I really do want to hear more on people’s pain points. Great to know people are generally sounding pretty positive in those posts who recently switched, but want to know your difficulties as well! This way old and new users can share their thoughts, hopefully to inspire a respectful discussion.


kwin_wayland is currently using 2125Mb VRAM and 6268Mb GTT.
has your system been running for some while? i have observed this behaviour in niri (a separate wm) as well, and seemingly, it is not a issue. if i understand it correctly, for any app that had vrma allocated, and is closed it’s vram is not cleared correctly (on amd i gpu) and that usage just gets added to wm (the host program). if it is not using much gpu (check any app which shows usage), then it is just a reporting issue. like when i fresh boot, my wm uses 100MiB of vram, but with time, it becomes 2GiB and stays there, but i still can open stuff which requires vram. kinda like buffered ram, which is still allocated, but available to use.
I’ve seen it hit higher numbers within a day of booting. It’s fairly recent behavior, so I think an update broke something and was hoping another update would fix it. That hasn’t happened yet, so I may need to do some troubleshooting.
That seems unusually high, I’ve got a few graphical effects enabled and it’s just barely scratching 100MiB VRAM on my machine.
What’s GTT?
https://en.wikipedia.org/wiki/Graphics_address_remapping_table