https://bugs.kde.org/show_bug.cgi?id=499457
Bug ID: 499457
Summary: Spectacle : External display crashes when taking a
screenshot with adaptive sync
Classification: Applications
Product: Spectacle
Version: unspecified
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: General
Assignee: noaha...@gmail.com
Reporter: rlacr...@insa-toulouse.fr
CC: k...@david-redondo.de
Target Milestone: ---
SUMMARY
Whenever a rectangular snip is done on this external monitor, the monitor would
turn blank and flicker (while the content of the window being moved downwards)
up until the `enter` (or `escape`) key is pressed (the screenshot is taken) at
which point it blinks once and returns to normal. This also happens when
interacting with the UI elements on this display (ex : opening the "help" menu
item)
This does not happen :
- When taking a full screenshot of the multi-monitor setup or in/of another
screen.
- When the adaptive sync for this monitor is set to "Never"
- That was set to "automatic" by default, I found that workaround by luck
- When the HDMI monitor is plugged through a USB-C port with an adapter (maybe
due to the fact that there is no adaptive sync)
- When a VGA monitor is plugged to the HDMI port but uses an HDMI-VGA adapter
in between (maybe due to the fact that there is no adaptive sync)
STEPS TO REPRODUCE
(note : I could not test it on another computer having no other):
1. Plug in an HDMI monitor
2. Select the "rectangular area" mode
3. See error
OBSERVED RESULT
The screen flickers, goes blank and moves down its content
EXPECTED RESULT
The screenshot does not make the screen go blank, flicker, or move its content
SOFTWARE/OS VERSIONS
- Operating System: Fedora Linux 41
- KDE Plasma Version: 6.2.5
- KDE Frameworks Version: 6.10.0
- Qt Version: 6.8.1
- Kernel Version: 6.11.11-300.fc41.x86_64 (64-bit) (also tested under 6.12)
- Graphics Platform: Wayland
- Processors: 8 × AMD Ryzen 7 4700U with Radeon Graphics
- Memory: 15.0 GiB of RAM
- Graphics Processor: AMD Radeon Graphics
ADDITIONAL INFORMATION
Here is a video demonstrating this:
https://limewire.com/d/5641e176-f138-40bb-8ec8-375953a0feed#Y6JWOzkoV_-u3Ov7GORiVbsc5hiygvkYIY1vUr5Jh5o
Note that at the end the `Enter` key is pressed
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