Bug 311835

Summary:	Black areas appear while resizing windows in KDE.
Product:	[Plasma] kwin	Reporter:	Pavel <fe-pavel>
Component:	compositing	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	Flags:	thomas.luebking: Catalyst+
Priority:	NOR
Version:	4.9.4
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
URL:	http://youtu.be/J0D4X45fgvo
Latest Commit:		Version Fixed In:
Attachments:	qdbus org.kde.kwin /KWin supportInformation

Description Pavel 2012-12-17 16:33:13 UTC

Black areas appear when I resize windows with themes differ from Oxygen enabled. Especially annoying it becomes with transparent themes. Video is attached in URL
It seems to happen with AMD graphic cards only. I used differend ones: from HD3650 to HD7470(notebooks) with different drivers - from Catalyst 12.4 to 12.11.

Reproducible: Always

Comment 1 Thomas Lübking 2012-12-17 17:31:54 UTC

Is this just bug #305020 - ie. depending on direct rendering invocation as well?

Please post/attach the output of
   qdbus org.kde.kwin /KWin supportInformation

Comment 2 Pavel 2012-12-17 19:55:04 UTC

Created attachment 75890 [details]
qdbus org.kde.kwin /KWin supportInformation

Comment 3 Pavel 2012-12-17 19:55:45 UTC

Added the qtbus support information

Comment 4 Martin Flöser 2012-12-29 08:06:53 UTC

the output is form running with KWIN_DIRECT_GL=1. Is the problem gone when doing so and can you please attach the support information when not using the environment variable?

Comment 5 Martin Flöser 2013-01-17 15:27:52 UTC

please attach the data requested in comment #4. Otherwise we cannot properly investigate.

Comment 6 Pavel 2013-01-17 18:24:20 UTC

(In reply to comment #5)
> please attach the data requested in comment #4. Otherwise we cannot properly
> investigate.

I can't actually. I'm betting you may check out these video corruptions with any notebooks with AMD HD Radeon cards and the proprietary driver installed. When I use free driver KDE works properly, so the solution seems to come from AMD. I've already reported this bug to their bugzilla.