F12 updates-testing issue: X flickers and fails to start

[Pekka Savola]

Hi,

On my laptop, after F12 updates-testing update today, after reboot F 
logo shows but then the screen goes dark and starts flickering between 
various shades of dark (changing modes?) with intel graphics chipset 
(GM965/GL960).  I'm only using 1024x768 resolution. Nomodeset or using 
a previous kernel didn't help.  Booting to runlevel 3 and running 
system-config-display (--reconfig) resulted in the same.

I've worked around the issue by "yum history undo 1" which rolled 
back a couple of hundred packages.

Any idea which package could be the culprit and I should file a bug 
against or to isolate it?  Somehow I don't think this is necessarily 
an Xorg base or driver issue.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings