[CentOS] additional X11 issues with CentOS 6.7

On 08/17/2015 03:33 PM, Gordon Messmer wrote:
> On 08/17/2015 01:55 PM, Kay Schenk wrote:
>> OK, I need to start with a basic "dumb" question. What named xorg
>> version does my package version 1.15 correspond to? X11R7.?
> 
> X11r7.7, I think.
> http://www.x.org/wiki/Releases/

Thanks. Honestly, I really could not figure this out.

> 
>> Currently, I'm having some bad flicker problems I didn't experience
>> previously. I have an old old radeon graphics card and note that the ati
>> driver was updated with 6.7. This loads for X before the radeon module.
> 
> Sounds similar to the problem that Bill Maltby has been writing about. 
> The advice I gave him last:
> 
> Boot the last kernel under which you saw "normal" performance.  If
> booting the older kernel doesn't fix the problem, then the problem is
> probably the X11 server.  At that point, I'd start using "yum downgrade"
> to revert individual components, and reboot until you find the change
> that fixes performance.  xorg-x11-server-Xorg and xorg-x11-drv-ati are
> the ones I'd check first.

OK, thanks. I haven't used yum downgrade before.

-- 
--------------------------------------------
MzK

“The journey of a thousand miles begins
 with a single step.”
                          --Lao Tzu