Comment 56 for bug 1073062

And after that... your nvidia or fglrx module probably won't load anymore (because it may be loading the nouveau or radeon first/instead)... So, you may have to add a 'blacklist bla' for each module for which you commented out the 'alias bla off' (bla is probably one or more of these: nouveau, lbm-nouveau, radeon, lbm-radeon) ... Just do the egrep command above again to find which files.

And, then you may still not have a nvidia/fglrx because the dkms modules may need to be rebuilt (they did for me), for which I use this command as root:

dkms status | sed s/,//g | awk '{print "-m",$1,"-v",$2}' | while read line; do ls /var/lib/initramfs-tools | xargs -n 1 dkms install $line -k; done

Then maybe another 'sudo update-initramfs -u' for good measure, and things should be good going forward without the error message of this bug report.