Bug 477483 - Plasma 6 Kwin 30fps Low FPS (Wayland)
Summary: Plasma 6 Kwin 30fps Low FPS (Wayland)
Status: RESOLVED DUPLICATE of bug 476860
Alias: None
Product: kwin
Classification: Plasma
Component: wayland-generic (show other bugs)
Version: 5.27.80
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-11-25 00:32 UTC by Syntist
Modified: 2023-11-25 17:17 UTC (History)
2 users (show)

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Description Syntist 2023-11-25 00:32:21 UTC 
❯ neofetch
                   -`                    syntist@syntist-pc 
                  .o+`                   ------------------ 
                 `ooo/                   OS: Arch Linux x86_64 
                `+oooo:                  Host: Precision 5570 
               `+oooooo:                 Kernel: 6.6.2-arch1-1 
               -+oooooo+:                Uptime: 39 mins 
             `/:-:++oooo+:               Packages: 1032 (pacman), 52 (flatpak) 
            `/++++/+++++++:              Shell: zsh 5.9 
           `/++++++++++++++:             Resolution: 1920x1200 
          `/+++ooooooooooooo/`           DE: Plasma 5.27.80 
         ./ooosssso++osssssso+`          WM: kwin 
        .oossssso-````/ossssss+`         Theme: Breeze-Dark [GTK2], Breeze [GTK3] 
       -osssssso.      :ssssssso.        Icons: breeze-dark [GTK2/3] 
      :osssssss/        osssso+++.       Terminal: kgx 
     /ossssssss/        +ssssooo/-       CPU: 12th Gen Intel i7-12800H (20) @ 4.700GHz 
   `/ossssso+/:-        -:/+osssso+-     GPU: Intel Alder Lake-P GT2 [Iris Xe Graphics] 
  `+sso+:-`                 `.-/+oso:    GPU: NVIDIA RTX A1000 Laptop GPU 
 `++:.                           `-/+/   Memory: 4098MiB / 15665MiB 
 .`                                 `/
                                                                 
Using Intel as primary gpu, while Nvidia only for gaming (Render Offload)

Having really low fps on kwin on wayland. but plasma 5 works fine
Comment 1 Schlaefer 2023-11-25 12:01:07 UTC 
I experience a similar issue. 

Multi monitor setup. *One* display only (4k, the other low-dpi) updates the UI with maybe 30 fps. This is very prominent when e.g. moving windows or scrolling views. 

I tried to record the behavior with OBS but after selecting the display in the pipewire-portal the fps goes back to "normal" (what feels like 60 fps).

Notable also on an Intel Arc GPU like OP.

Operating System: EndeavourOS 
KDE Plasma Version: 5.27.80
KDE Frameworks Version: 5.245.0
Qt Version: 6.6.0
Kernel Version: 6.6.2-zen1-1.1-zen (64-bit)
Graphics Platform: Wayland
Processors: 12 × 11th Gen Intel® Core™ i5-11400 @ 2.60GHz
Memory: 31,2 GiB of RAM
Graphics Processor: Mesa Intel® Arc
Comment 2 Zamundaaa 2023-11-25 17:17:12 UTC 

*** This bug has been marked as a duplicate of bug 476860 ***