Bug 96742 - Display corruption on scrolling window
Summary: Display corruption on scrolling window
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/Acceleration/glamor (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Xorg Project Team
QA Contact: Xorg Project Team
Depends on:
Reported: 2016-06-30 08:27 UTC by Terry Barnaby
Modified: 2016-07-15 17:00 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Picture showing corruption (23.03 KB, image/png)
2016-06-30 08:27 UTC, Terry Barnaby
no flags Details

Description Terry Barnaby 2016-06-30 08:27:09 UTC
Created attachment 124792 [details]
Picture showing corruption

When an nedit window is scrolled the display becomes mangled. This happens with some other applications but otherwise system and display is fine. Attachment shows corruption.

Nedit is a simple text editor based on the Motif widget set.

Does not happen when the nedit window is at the top left of the first screen.

If I set (Option "ShadowPrimary" "on") this fixes the problem. This is the work around but I'm not sure if this will mess up performance or other things.

Hardware is older Dual Xeon with graphics board: [AMD/ATI] Oland PRO [Radeon R7 240/340]. Dual monitors in use on HDMI and DVI.

Software is Fedora23 with all updates to date. Uses radeon driver: xorg-x11-drv-ati-7.6.1-3.20160215gitd41fccc.fc23.x86_64, kernel: 4.5.7-200.fc23.x86_64.
GUI is KDE/Plasma with compositing enabled as per default.
Comment 1 Adam Jackson 2016-07-15 17:00:43 UTC
commit e8e36755abb17872d669b88d33ca9adc511029a0
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Fri Jul 1 12:34:20 2016 +0900

    glamor: Translate solid text background region after clipping

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