Red Hat Bugzilla – Bug 466495
Garbage in windows when using compositor
Last modified: 2010-11-01 11:39:45 EDT
As per upstream bug:
When using a compositor, some windows will first appear garbled on the screen.
What it should look like:
What it actually looks like:
This is especially bad with application that appear maximised, or near maximised such as Firefox.
Bastien, still I think we could use /var/log/Xorg.0.log from the machine where it happens.
Reporter, could you please reply to the previous question? If you won't reply in one month, I will have to close this bug as INSUFFICIENT_DATA. Thank you.
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.
More information and reason for this action is here:
This may be related to KDE bug #170462, which, according to some of the comments, is caused by 107_fedora_dont_backfill_bg_none.patch
Bastien, is this still relevant, or should close this?
I can only add that I still experience the seemingly related problem described in the linked KDE bug on my Fedora 10 system, and that the bug has been resolved as a downstream problem by them.
I use KWin desktop effects in XRender mode.
Yes, it's still a problem, and the Xorg.0.log would be useless to this bug.
This is the patch creating the problem:
Confirmed..this bug happens in fedora 11 in gnome, when you open/minimize/maximize applications, especially firefox and thunderbird, but it's especially bad in kde: all the nice fadings and effects that were supposed to look nice are spoiled by this bug. When desktop effects are on I can't look at kde in fedora... Random garbage appears at almost every right click in the desktop, windows or menu open. It is THAT bad! Actually I think this is also a security issue, since it sometimes displays for some moments (long moments on my netbook) random images of windows not opened anymore. Imagine a child using a computer that sees a blinking porn image while opening a file manager.You can spot any kind of personal data, even if just for a moment!
This patch has been kept for performance reasons in fedora, but nowadays all the main distributions have removed it (i'm thinking at openSUSE, mandriva, ubuntu and others). Why can't just fedora do the same?
oh, and just to give a better idea of the problem...check out this animated pic that shows the problem:
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Looks like it is still in Fedora 12, although currently things crash too fast to be certain. And this is certainly not an 'upstream' issue.
Still a problem.
* Mon Jun 29 2009 Adam Jackson <email@example.com> 1.6.99-7.20090618
- xserver-126.96.36.1992-selinux-debugging.patch: Drop.
- xorg-x11-server-1.1.0-no-move-damage.patch: Drop.
- xserver-1.4.99-dont-backfill-bg-none.patch: Drop.