https://bugs.kde.org/show_bug.cgi?id=502695
Bug ID: 502695
Summary: Intel Arc A750 and Plasma 6 wayland session wonky
scaling between two monitors with Brave browser
Classification: Plasma
Product: kwin
Version: 6.3.4
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: unhappy-end...@protonmail.com
Target Milestone: ---
See title. I have 2 screens, the main one is 4K with scaling set to 150% and a
second 1080p screen with scaling set to 75%. When starting Brave browser on the
main screen, scaling and everything is fine. Maximizing the Brave window on the
main screen is fine. If I move it to the secondary scree, and maximize it, it
will only fill 75% of the screen. Moving the window between both screens will
shrink the Brave browser window each time it moves from one to the other.
STEPS TO REPRODUCE
1. Launch Brave on an Intel Arc system
2. Move between a 4K display and a 1080p display with unique scaling on each
3. Profit!
OBSERVED RESULT
Kwin seems to rescale the browser each time it moves between each screen. Won't
maximize on the secondary screen proper.
EXPECTED RESULT
Proper scaling of the app between both screens.
ADDITIONAL INFORMATION
Operating System: Gentoo Linux 2.17
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.9.0
Kernel Version: 6.14.1-clang (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 9 3950X 16-Core Processor
Memory: 7.7 GiB of RAM
Graphics Processor: Intel® Arc
Product Name: X570S PG Riptide
OpenGL core profile vendor: Intel
OpenGL core profile renderer: Mesa Intel(R) Arc(tm) A750 Graphics (DG2)
OpenGL core profile version: 4.6 (Core Profile) Mesa 25.0.3
OpenGL core profile shading language version: 4.60
env:
export QT3D_RENDERER=opengl # opengl, rhi
export QSG_RHI_BACKEND=opengl # vulkan, metal, opengl, d3d11, d3d12
export QSG_RENDER_LOOP=threaded # basic, threaded
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