Bug 104897

Summary: nouveau memory allocation issue causes screen distortions under KDE
Product: xorg Reporter: Elmar Stellnberger <estellnb>
Component: Driver/nouveauAssignee: Nouveau Project <nouveau>
Status: RESOLVED MOVED QA Contact: Xorg Project Team <xorg-team>
Severity: major    
Priority: medium    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
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Description Elmar Stellnberger 2018-02-01 08:36:09 UTC 
Created attachment 137106 [details]
screenshot

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)
Comment 1 Martin Peres 2019-12-04 09:36:07 UTC 
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