https://bugs.kde.org/show_bug.cgi?id=402165
Bug ID: 402165
Summary: Using 2x scaling limits games to 1080p with 2160p (4K)
monitor
Product: kwin
Version: 5.14.4
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: gareth.h1...@gmail.com
Target Milestone: ---
SUMMARY
Video games can only detect a maximum resolution of 1920x1080 when using 2x
scaling. Switching back to 1x scaling allows for native 3840x2160 again, but
makes desktop hard to use as everything is tiny.
STEPS TO REPRODUCE
1. Use 4K monitor.
2. Login in with Plasma Wayland.
3. Go to System Settings->Display and Monitor, then change scale to 2x.
4. Start a game, go to game options and attempt to change to resolution to
3840x2160.
OBSERVED RESULT
User will not be able to budge resolution above 1920x1080.
EXPECTED RESULT
User should be able to get 3840x2160 since the monitor supports it.
SOFTWARE/OS VERSIONS
Operating System: Antergos Linux
KDE Plasma Version: 5.14.4
Qt Version: 5.12.0
KDE Frameworks Version: 5.53.0
Kernel Version: 4.19.8-arch1-1-ARCH
OS Type: 64-bit
ADDITIONAL INFORMATION
Processors: 16 × AMD Ryzen 7 1700 Eight-Core Processor
Memory: 31.4 GiB of RAM
GPU: Power Cooler Red Devil AMD Vega 64 8GB
Driver: Mesa Radv 18.3.1-1
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