https://bugs.kde.org/show_bug.cgi?id=516847
Bug ID: 516847
Summary: Taking a snapshot of a rectangular region in Spectacle
reduces refresh rate to 48hz when adaptive sync is set
to automatic
Classification: Applications
Product: Spectacle
Version First 6.6.1
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: General
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
SUMMARY
I have two 240hz monitors that support FreeSync Pro, and I enabled the Adaptive
Sync option (set to automatic) after migrating to Wayland recently.
Now when I take a snapshot of a rectangular region, the refresh rate of the
monitor that the highlight box is in is reduced to 48hz, the other monitor
turns black briefly but comes back at 240hz. If the box spans across both
monitors, only the left (primary) one's refresh rate is reduced.
The issue does not happen if I turn adaptive sync off.
STEPS TO REPRODUCE
1. Set adaptive sync to automatic
2. Try taking a snapshot of a rectangular region
OBSERVED RESULT
Spectacle seems to behave like some applications/games that run in fullscreen
exclusive mode, where it takes over the control of refresh rates.
EXPECTED RESULT
I wasn't running anything special (just Firefox) that already adjusted the
refresh rate so I expected the refresh rate to be left untouched in this case.
If another fullscreen program is already running, I'd also expect Spectacle to
adjust to the current mode instead of setting its own.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.6.1
KDE Frameworks Version: 6.23.0
Qt Version: 6.10.2
Kernel Version: 6.18.13-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 20 × 12th Gen Intel® Core™ i9-12900H
Memory: 64 GiB of RAM (62.5 GiB usable)
Graphics Processor 1: Intel® Iris® Xe Graphics
Graphics Processor 2: NVIDIA GeForce RTX 3080 Ti Laptop GPU
ADDITIONAL INFORMATION
Potentially related to Bug 487563.
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