On Wed, Feb 26, 2014 at 6:27 AM, Pat Riehecky <[log in to unmask]> wrote:
> 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

This centos bug report may be the same issue:

http://bugs.centos.org/view.php?id=7012

I was also not able to find a relevant bug in the upstream BZ.

Akemi