Bug 511911 - Window content rendering at lower DPI when mirroring
Summary: Window content rendering at lower DPI when mirroring
Status: RESOLVED DUPLICATE of bug 481222
Alias: None
Product: kwin
Classification: Plasma
Component: multi-screen (other bugs)
Version First Reported In: unspecified
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-11-10 14:48 UTC by Jonathan Isom
Modified: 2025-11-11 13:35 UTC (History)
1 user (show)

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Description Jonathan Isom 2025-11-10 14:48:52 UTC 
SUMMARY

I have a 5120x2160@75(1.25 scale) monitor as primary and tried connecting my Jetkvm, 1080p@60, as a mirror. Alacritty and Spectacle(Capture), so far, see the screen at 1080P when the Jetjvm screen is enabled.

STEPS TO REPRODUCE
1. Connect Jetkvm(Or Other non-HiDPI screen?) and set as mirror of HiDPI screen.
2. Run Alacritty or take screenshot.

OBSERVED RESULT
Rendered at 1080p

EXPECTED RESULT
Rendered at 2160p

SOFTWARE/OS VERSIONS

Operating System: Arch Linux 
KDE Plasma Version: 6.5.2
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.7-273-linux-tkg (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 64 GiB of RAM (62.7 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 4080
Product Name: X570M Pro4
ADDITIONAL INFORMATION
Comment 1 Zamundaaa 2025-11-11 13:35:22 UTC 

*** This bug has been marked as a duplicate of bug 481222 ***