Main display dropping frames

ChloeTheProducer · 2025-03-01 19:57:20

this is my first post here, so it may not be as coherent as it could be.

I'm gonna preface this by saying that I'm possibly the only one having this issue, as I've checked the forums, i did a google search and got no relevant results, so here i am now.

I have three displays, a built in laptop display 2560x1440@165, two external displays, one connected via hdmi 1920x1080@60, the other, a hp 2010i 1600x900@60 connected via usb-c to vga
but the issue only affects the built in display, the other two end up fine

my specs:
OS: Arch Linux x86_64
Host: ROG Strix G513RM 2021 edition
Kernel: Linux 6.13.5-arch1-1
Desktop Environment: KDE plasma 6.3.2
Window Manager: KWin (Wayland)
CPU: AMD Ryzen 7 6800H
GPU 1: Nvidia RTX 3060 Mobile (dedicated, proprietary nvidia-dkms 570.124.04-1 with nvidia-prime 1.0-5)
GPU 2: AMD Radeon 680M (integrated)
RAM: 16 GiB DDR5 4800mhz

so the main display frame dropping, I only really noticed happens when i play minecraft and is very unpredictable when it happens, there were a couple times that it happened outside of minecraft, but it really only happens with minecraft. when the display does drop frames, from what i can tell it drops down to around 5-15 fps. What i mean about the unpredictability is, it could happen within 10 seconds of opening the game to 2-3 hours after opening. as i said, when i tried to search up this issue i didnt really see anything but a post on the arch forums from mid last year, so its a bit trickier to find now (i promise, i went back to the forum homepage and used the search function), that only even remotely related that stated that it was a kernel/driver bug relating to frame buffer overflow that currently still happens with wayland. again, it only affects the main display which to me is the really weird part. I guess i should mention that when i do play minecraft i like to play with shaders, so i add prime-run to the wrapper commands so i can use the nvidia gpu for playable frame rates, but i dont think that could be the issue, tho. another thing i tried that i saw from this post https://discuss.kde.org/t/kde-plasma-wa … ters/27064 was to open obs to see if that would resolve it by refreshing the buffer, but no dice. I did notice something interesting with that though, when i set obs to capture the built in display, while the mouse was teleporting around on the display, thats what im calling it, obs was capturing the mouse at a smooth non laggy, 60fps, but was capturing everything else at the much slower 5-15fps. (maybe that means its just a frame buffer overflow bug possibly?)

the only temporary solution i have to this frame issue that ive been doing, is rebooting my system, which as you can imagine i dont wanna be doing all the time for one thing. One thing I tried on my own that i thought would've helped was to open kde setting > display & monitor > disable then re-enable the built in display. That only half worked, I was able to disable the display fine, but re-enabling would result in everything freezing and id have to sit and wait that 10-15 seconds for it to revert back to my, at that point, two enabled external displays, and i ended up having to reboot anyway.

There have been a couple times where this frame dropping happened when i wasnt playing minecraft, and I've had times where when it happens, id begrudgingly reboot my system, and it doesnt happen again for the rest of the day.

is there anything i could do that i havent done to fix this, or is this just a driver/kernel bug that id have to report if not done already, and wait for a patch. or is there a kernel parameter i havent set that needs to be set

seth · 2025-03-02 14:58:33

x-ref, https://bbs.archlinux.org/viewtopic.php?id=303845

Arch Linux

#1 2025-03-01 19:57:20

Main display dropping frames

#2 2025-03-02 14:58:33

Re: Main display dropping frames

Board footer