GPU lockup after upgrade from 11 to 12

[hvniekerk]

Hi,

I just upgraded from F11 to F12 and get this error:

[drm] nouveau 0000:01:00.0 GPU lockup - switching to software fbcon

With Ctl-F2 I can switch to console and login, so the system is running. Anyone else with this problem and/or solution?

Thanks.

"ps -ef | grep Xsession" shows constant changing pid for Xsession, so I guess Xsession is continuously being restarted for some reason.

[Gödel]

Did you have the nvidia driver installed before upgrade or nouveau?

Try booting with options 'nomodeset vesa', then maybe easier to do maintenance.

[hvniekerk]

Thank you. With "nomodeset vesa" it boots fine. In F11 I had the videodriver automatically installed, so no special nouveau or nvidia. I changed the menu.lst and added "nomodeset vesa" to the arguments. Or should I do something else instead (or as well)?

[mtk]

in general, what's the downside to booting with 'vesa' instead of the native driver? what kinds of capabilities do you lose?

[Gödel]

Changing menu.lst is all you need to do, but vesa mode will be slow (nouvea has 2d acceleration, nvidia has 2d+3d acceleration)

I'm not familiar with the upgrade process from F11 to F12, perhaps the new dracut system is causing the nouveau problem at boot. If you can't get nouveau working then try the nvidia driver:

http://rpmfusion.org/Howto/nVidia#fedora_version_notes