On 02/25/2014 06:54 PM, David Crick wrote:
> Pulled the latest SL 6 fasbugs, which updated (amongst other packages):
>
> qt-4.6.2-28.el6_5.x86_64
> qt-devel-4.6.2-28.el6_5.x86_64
> qt-sqlite-4.6.2-28.el6_5.x86_64
> qt-x11-4.6.2-28.el6_5.x86_64
>
> Then found that when trying to click on the task bar in KDE to change
> tabs the tabs (I don't have tab grouping set) sometimes the tabs
> change order, sometimes one takes up the whole screen (masking the
> taskbar).
>
> Closing application windows failed to bring back the task bar.
> CTRL-ALT-DEL brings the logout options - I click logout and am
> returned to the login manager.  Logging in again and problem is
> reproducable.  Have tried restarting X-server and a full reboot,
> problem persists.
>
> Have done an rpm -ivh --force to the older versions in the SL 6.5 install tree:
>
> qt-4.6.2-26.el6_4.x86_64
> qt-devel-4.6.2-26.el6_4.x86_64
> qt-sqlite-4.6.2-26.el6_4.x86_64
> qt-x11-4.6.2-26.el6_4.x86_64
>
> and clicking tabs in the taskbar to change windows now works in a
> stable way again.

That is very surprising behaviour!

I'm not showing anything suspicious in the build logs.....

There are no similar bugs in the upstream bugzilla.

Pat

-- 
Pat Riehecky

Scientific Linux developer
http://www.scientificlinux.org/