Comment 8 for bug 79016

This morning I've tested a daily vuild with xorg 7.2 and the problem doesn't seem to be fixed.

However, I have foud the cause of the problem. As a matter of fact, xorg doesn't detect my graphic card. I could see it with a sudo dpkg-reconfigure xserver-xorg. Reconfiguring xorg with nv (it seemed to use vesa before or a failsafe mode, it even didn't detect the touchpad) fix it and all works fine.

To put it in a nutshell : - the graphic card isn't detected, so xorg seems to use a failsafe mode (maybe vesa, without touchpad support, with a wrong resolution and a slow display)
- sudo dpkg-reconfigure xserver-xorg fixes the prolem and the screen resolution is well detected by xorg after (the touchpad works very well after that)

I hope it will help you.