Regression causing Freeze in KWin 4.9.1

Martin Graesslin mgraesslin at
Wed Sep 5 19:06:55 UTC 2012

On Tuesday 04 September 2012 22:41:10 Martin Gräßlin wrote:
> Hi KDE Packagers,
> unfortunately we have introduced a nasty regression while fixing a bug in
> KWin for 4.9.1 [1]. With the "wrong" settings and the wrong set of open
> windows distributed over multiple desktops this can result in a freeze.
> A freeze in KWin means that the compositor stops, that is the user has no
> chance to recover from this state unless he knows how to switch to a tty.
> In case you have not yet pushed out updates for kde-workspace I would kindly
> ask you to hold them off till we have a working and regression free fix. A
> patch is already attached to the bug, but I want to give it more time for
> testing tomorrow.
> As an alternative you could also revert git commit
> 567f8cc50082ce5307aa7163fdf3176446a1df5a which introduced the 
> I will keep you informed when the patch has been committed to the branch.
I just pushed the fix to KDE/4.9 branch of kde-workspace repository as 

Sorry again for introducing this issue.

Best Regards
Martin Gräßlin


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