Bug 184338 - Window artefacts / tearing
Summary: Window artefacts / tearing
Status: RESOLVED UNMAINTAINED
Alias: None
Product: kwin
Classification: Plasma
Component: general (show other bugs)
Version: unspecified
Platform: Gentoo Packages Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-02-14 21:04 UTC by Viktor S
Modified: 2018-02-28 12:29 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
Screenshot of bleeding in maximized mplayer (342.48 KB, image/png)
2009-02-14 21:05 UTC, Viktor S
Details
Tearing of aMSN chatwindow onto Firefox (250.44 KB, image/png)
2009-02-14 21:09 UTC, Viktor S
Details
Tearing of the panel (23.56 KB, image/png)
2009-02-14 21:11 UTC, Viktor S
Details
Tearing of GIMP onto Kopete (56.75 KB, image/png)
2009-02-14 21:14 UTC, Viktor S
Details
Bleeding of Kmahjongg onto Kopete (68.52 KB, image/png)
2009-02-14 22:07 UTC, Viktor S
Details

Note You need to log in before you can comment on or make changes to this bug.
Description Viktor S 2009-02-14 21:04:53 UTC
Version:            (using KDE 4.2.0)
Compiler:          GCC 4.3.3 Default compiler options in make.conf (plus -ggdb)
OS:                Linux
Installed from:    Gentoo Packages

Using QT 4.5 rc1, but problem experienced with 4.4.2 aswell.

Using nvidia-drivers 180.29 but was reproducable on .27 aswell.

I'm experiencing window tearing/artefacts; the window below the selected window seems to be drawn on top of the selected window. As I can remember it this didn't happen with KDE-libs 4.2.0, but started with -r1 if I remember it right. It seems to primarily be affecting windows which use another toolkit (such as aMSN (tcl/tk) and the GIMP (gtk+)) than QT.

Artefacts also seem to be appearing pretty regularly in the panel, aswell as when maximising mplayer.

A sample screenshot might be in place, so I'm attatching a few.
Comment 1 Viktor S 2009-02-14 21:05:55 UTC
Created attachment 31306 [details]
Screenshot of bleeding in maximized mplayer
Comment 2 Viktor S 2009-02-14 21:09:34 UTC
Created attachment 31307 [details]
Tearing of aMSN chatwindow onto Firefox
Comment 3 Viktor S 2009-02-14 21:11:13 UTC
Created attachment 31308 [details]
Tearing of the panel
Comment 4 Viktor S 2009-02-14 21:14:36 UTC
Created attachment 31309 [details]
Tearing of GIMP onto Kopete
Comment 5 Viktor S 2009-02-14 22:07:41 UTC
Created attachment 31313 [details]
Bleeding of Kmahjongg onto Kopete

It also affects QT apps, but I do not experience this as often.
Comment 6 Viktor S 2009-02-18 00:19:43 UTC
Will noone look into this? I've rebuilt all relevant packages and this problem persists. Since noone else seems to have the same problem I'm thinking it's me, but I have no idea as to why this behavior appears. Anyone?
Comment 7 Michael Leupold 2010-10-10 14:33:04 UTC
Sorry for the late reply but we simply can't reproduce this bug. Can you still reproduce using a recent NVIDIA driver and a recent version of KDE (eg. 4.5)?
Comment 8 Thomas Lübking 2010-10-10 21:08:02 UTC
@ Viktor
if you don't intend to use compositing at all, in xorg.conf

a) disable it entirely

Section "Extensions"
  Option "Composite" "Disable"
EndSection


b) activate the backingstore

Section "Device"
........
Option      "BackingStore" "true"
..
Comment 9 Martin Flöser 2012-04-08 21:13:13 UTC
All the software versions mentioned in this bug report are quite outdated. Especially KDE and the NVIDIA driver. Because of that I set this bug to unmaintained.