https://bugs.kde.org/show_bug.cgi?id=510314
Bug ID: 510314
Summary: mpv resize is super slow with radv driver on wayland
Classification: Plasma
Product: kwin
Version First 6.4.5
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
I have a hybrid graphics laptop with amd integrated and nvidia discrete
graphics chips. Recently i've noticed when i'm on Wayland if i launch mpv on
the amd integrated graphics the action to resize window on kde wayland is super
slow. This does not happen if i launch mpv with xwayland. This also does not
happen if i launch mpv with Wayland but on the nvidia chip.
I also tried this on Gnome and with Gnome Wayland on the amd graphics chip this
bug is no longer present. I'm not sure if this is a kwin bug but i wanted to
report this since this only seems to happen on Plasma Wayland.
mpv is running on the gpu with the waylandvk context. there is also nothing in
the logs and cpu usage is not going up.
STEPS TO REPRODUCE
1. launch mpv on an amd graphics chip like the amd Rembrandt
2. try to resize the window
OBSERVED RESULT
resize is super slow(even though it's smooth)
EXPECTED RESULT
resize is fast and keeps up with mouse
Operating System: Arch Linux
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.18.0
Qt Version: 6.9.2
Kernel Version: 6.16.10-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 7535HS with Radeon Graphics
Memory: 16 GiB of RAM (14,9 GiB usable)
Graphics Processor 1: AMD Radeon 660M
Graphics Processor 2: NVIDIA GeForce RTX 4050 Laptop GPU
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: ASUS TUF Gaming A15 FA507NU_FA507NU
System Version: 1.0
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