https://bugs.kde.org/show_bug.cgi?id=479279
Bug ID: 479279
Summary: Desktop Effects that involve squash and stretch are
obscured by white pixels
Classification: Plasma
Product: kwin
Version: 5.91.0
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-various
Assignee: kwin-bugs-n...@kde.org
Reporter: pawlowski...@gmail.com
Target Milestone: ---
SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug
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See
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***
Many desktop effects are obscured by white pixels or white rectangles. The
video https://icefangvault.myusa.cloud/index.php/s/3rALYFsgxH9afM4 shows the
following effects in order:
Morphing Popups when hovering over icons in the taskbar and moving between them
Launch Feedback (This isn't a Desktop Effect; it is found in Cursors ->
Configure Launch Feedback)
Wobbly Windows when dragging the screen around
Maximize
and most notably:
KDE Overview is completely unusable.
Pressing Meta+tab, Meta+w, or Meta+g turns the screen white instead of showing
desktop overview or desktop grid. Pressing escape will return the screen to
normal.
STEPS TO REPRODUCE
1. Turn on a desktop effect that squishes, squashes, or stretches a window (For
example, Magic Lamp.)
2. Activate the effect (with a hover, mouse click, keyboard shortcut, etc.
OBSERVED RESULT
Animations are obscured in white. Sometimes a section of the screen is obscured
by a white rectangle (Morphing Popups, Maximize, KDE Overview) and other times
the animation is played but it is replaced by white pixels (Wobbly Windows,
Magic Lamp.)
EXPECTED RESULT
I expect the pixels on the display to animate smoothly without being obscured
by anything.
SOFTWARE/OS VERSIONS
Windows: N/A
macOS: N/A
Linux/KDE Plasma: OpenSUSE Tumbleweed 20231226
(available in About System)
KDE Plasma Version: 5.91.90
KDE Frameworks Version: 5.248.0
Qt Version: 6.6.1
Kernel Version: 6.6.7-1-default (64-bit)
Graphics Platform: X11
HARDWARE
Processors: 2 x Intel® Core™2 Duo CPU P8400 @ 2.26GHz
Memory: 3.7 GiB of RAM
Graphics Processor: Mesa Mobile Intel® GM45 Express Chipset
Manufacturer: LENOVO
Product Name: 7417CTO
System Version: ThinkPad T400
ADDITIONAL INFORMATION
This issue is identical in both X11 and Wayland.
This issue appears to be a regression. I do not have this problem when running
from my live usb installer. My USB drive is: OpenSUSE Krypton 10.7 (a.k.a
OpenSUSE Tumbleweed 20231209)
Plasma 5.90.90
Frameworks 5.247.0
Qt 6.6.1
kernel 6.6.3-1-default (64 bit).
I cannot install this version to my SSD because the OpenSUSE Krypton installer
requires an internet connection and auto-updates at install time.
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