Details
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Bug
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Resolution: Invalid
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P1: Critical
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None
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5.15.3
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None
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Operating System: KDE neon 5.23
KDE Plasma Version: 5.23.5
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.3
Kernel Version: 5.11.0-44-generic (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-3570K CPU @ 3.40GHz
Memory: 7.2 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 4000Operating System: KDE neon 5.23 KDE Plasma Version: 5.23.5 KDE Frameworks Version: 5.89.0 Qt Version: 5.15.3 Kernel Version: 5.11.0-44-generic (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Core™ i5-3570K CPU @ 3.40GHz Memory: 7.2 GiB of RAM Graphics Processor: Mesa DRI Intel® HD Graphics 4000
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Linux/Wayland,
Description
There are serious graphical issues with OpenGL-accellerated QtQuick applications in KDE Plasma on Intel HD Graphics 4000.
Menu and tooltip backgrounds are transparent, looking crazy and making the text very hard to read. I have seen this bug in least the following applications:
- Elisa
- Discover
- Several system settings modules (e. g. kcm_style)
- Plasma start menu
Each time when triggering an affected action (e. g. the hamburger menu of Elisa), there is huge console output about failed shader compilation; lots of source code gets dumped.
More applications are affected with problems that seem related:
- systemsettings / users kcm: avatar selector does not show the images
- plasma-systemmonitor: graphs are not visible, the application is extremely slow and already froze the whole system once
- overview effect shows empty fields instead of desktop previews
These issues disappear when setting the environment variable LIBGL_ALWAYS_SOFTWARE=1.
I have already contacted KDE developers, who think this is most likely an issue with Qt.
Screenshots and passages of console output are attached.
