No. No kernel update. I know about that problem you had... I had it too. But now I'm with the 3.5 kernel, an NVIDIA GT520, but everything seems alright, no system complaint about it. It's like something broke at updating...
Now I'm writing this, I tried to log in, it seems X is not starting at all... I typed "startx" and sends me to basic X with xterm.
Yesterday it was updaing basically from KDE 4.9.2 to 4.9.3... should I reinstall all 4.9.3 packages? Any idea?
At typing "kded4" says "QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave. Segmentation Fault".
"kdeinit4" says "Aborting. $Display is not set. Illegal instruction"