Bug 104897 - nouveau memory allocation issue causes screen distortions under KDE
Summary: nouveau memory allocation issue causes screen distortions under KDE
Status: NEW
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/nouveau (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium major
Assignee: Nouveau Project
QA Contact: Xorg Project Team
Depends on:
Reported: 2018-02-01 08:36 UTC by Elmar Stellnberger
Modified: 2018-02-01 08:36 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

screenshot (373.00 KB, image/jpeg)
2018-02-01 08:36 UTC, Elmar Stellnberger
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Description Elmar Stellnberger 2018-02-01 08:36:09 UTC
Created attachment 137106 [details]

Working under mesa-common-dev 13.0.6-1+b2, plasma-workspace 4:5.8.6-2.1, Xorg 1.19.2 and kernel 4.15.0-rc9+ I do get weird screen distortions under KDE as soon as I enable my external 4K display. As KDE runs stable and fine with my integrated display in a much lower resolution I would guess this to be a memory allocation issue of nouveau. Other less memory intense desktop environments like Xfce still run fine under 4K. The issue is known since long (see also the KDE bug: https://bugs.kde.org/show_bug.cgi?id=368275)

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