https://bugs.kde.org/show_bug.cgi?id=471640
Bug ID: 471640
Summary: Lost ability to tile 3 displays when "for only this
specific display arrangement" is selected
Classification: Plasma
Product: KScreen
Version: 5.27.6
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: arca...@ivanov.biz
Target Milestone: ---
This just happened recently. When selecting "Save displays' properties: for
only this specific display arrangement" during applying display configuration
the display configuration fails while screens reset and initialize. Moving to
"for any display arrangement" is a workaround to make things work.
This involves 2 x 4k displays via USB-C dock plus primary laptop screen.
STEPS TO REPRODUCE
1. Start with "built-in screen". Select "for only this specific display
arrangement" option in screen configuration.
2. Tile the dock's displays around your built-in screen. Click Apply.
3. Observe the flickers of initialization and "New output detected" appearing
several times. Observe that flickers stop and only built-in screen is
configured with dock's displays gone.
4. Repeated the same procedure (1 - 3) with "for any display arrangement".
Observe same flickering etc but all screens configuring normally with all
specified displays.
OBSERVED RESULT
Only built-in screen configured
EXPECTED RESULT
All 3 screens are configured
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 38
KDE Plasma Version: 5.27.6
KDE Frameworks Version: 5.107.0
Qt Version: 5.15.10
Kernel Version: 6.3.8-200.fc38.x86_64 (64-bit)
Graphics Platform: X11
Processors: 16 × Intel® Core™ i9-9980HK CPU @ 2.40GHz
Memory: 62.4 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 630
Manufacturer: Dell Inc.
Product Name: Precision 5540
ADDITIONAL INFORMATION
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