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Bug 1949821 - Gwenview and other apps on Wayland have "transparent" areas (i.e. not being painted)
Summary: Gwenview and other apps on Wayland have "transparent" areas (i.e. not being p...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: gwenview
Version: 34
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: Rex Dieter
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-04-15 08:09 UTC by Bernie Innocenti
Modified: 2021-04-15 12:23 UTC (History)
8 users (show)

Fixed In Version:
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Type: Bug
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System ID Private Priority Status Summary Last Updated
KDE Software Compilation 429967 0 NOR UNCONFIRMED Gwenview and other apps on Wayland have "transparent" areas (i.e. not being painted) 2021-04-15 08:32:27 UTC

Description Bernie Innocenti 2021-04-15 08:09:02 UTC 
Please see upstream bug for details:
https://bugs.kde.org/show_bug.cgi?id=429967

I'm still experiencing this bug in F34 on a Thinkpad with Intel graphics with:

 - gwenview-20.12.2-1.fc34.x86_64
 - kwin-5.21.4-1.fc34.x86_64
 - mesa-libGL-21.0.2-1.fc34.x86_64
 - qt5-qtbase-5.15.2-15.fc34.x86_64

obs-studio-26.1.2-3.fc34.x86_64 also shows transparent areas, not sure if same bug.
Other users report that kstars has the same problem (I haven't tested).

In case this bug affects all users with Intel GPUs, I think it should be considered a blocker for the Plasma Wayland by default feature.
Comment 1 Rex Dieter 2021-04-15 08:37:44 UTC 
Not reproducible on my intel-based dell latitude
Comment 2 Neal Gompa 2021-04-15 11:08:51 UTC 
I can't reproduce this either on my Slimbook with an Intel GPU.
Comment 3 Bernie Innocenti 2021-04-15 12:21:45 UTC 
This is caused by a bug in the OpenGL backend. It's only triggered with a non-default config: Settings -> Image View -> Animations -> OpenGL

There's already an upstream fix:
https://invent.kde.org/graphics/gwenview/-/commit/955df5addac77b49c8349e6477806dbf27bde238

Hence, definitely not a blocker.
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