Bug 160081

Summary:	window borders aren't redrawn/invalidated properly
Product:	[Plasma] kwin	Reporter:	Armin Berres <armin>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	mwoehlke.floss
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Compiled Sources
OS:	Linux
Latest Commit:		Version Fixed In:
Attachments:	Screenshot showing the problem.

Description Armin Berres 2008-03-30 01:34:05 UTC

Version:            (using Devel)
Installed from:    Compiled sources

Just updated to r791114 and resizing windows horizontally gives interesting artefacts:
When you make a window smaller by dragging the left border, the buttons (moximize, minimize, ...) aren't redrawn. When you make the window larger the buttons get drawn over and over again, but the old ones doesn't get removed. Looks a bit like resizing windows doesn't invalidate the window borders.

If you need more information or want a screenshot: Tell me :)

Comment 1 Armin Berres 2008-03-30 01:58:41 UTC

Some more information:
You can find a screenshot attached now. More or less the same happens with other window decorations than Oxygen, but they seem to be more robust. Making the window smaller is no problem for most of them e.g.
I'm using and r300 with the radeon driver and composite is not used.
When the "broken" window is no more avtive the window border is completely fine again.

Comment 2 Armin Berres 2008-03-30 01:59:31 UTC

Created attachment 24120 [details]
Screenshot showing the problem.

Comment 3 Armin Berres 2008-03-30 23:47:55 UTC

Some more information coming directly from #debian-qt-kde:
Nearly the same thing happens with KDE 4.0.2 and Qt 4.4, but the buttons also completely vanish, when making the window smaller. This means this is a Qt 4.4 beta1 bug. With 4.3 everything was fine.

"QT_USE_NATIVE_WINDOWS=1 kwin --replace" makes the situation much better, but there are still some artefacts. The gradient of the boarder when using the Oxygen theme also doesn't change when you resize windows which means that only the part of the border where the buttons where get redrawn.

Comment 4 Lubos Lunak 2008-04-02 15:23:52 UTC


*** This bug has been marked as a duplicate of 157659 ***