Re: works under root but not under normal users
Under the post entry box there is 'Additional Options' where you can attach your log, rather than post the contents (that allows users to read it only when they need).
Often this problem is caused by permissions being incorrect on the files /dev/nvidia*, so check them.
ls -al /dev/nvidia*
Your user should own them and have read/write permission if PAM is managing the file perms for those devices (as soon as you log in they should be set this way), if it is not or the files only have root access change them and see if that fixes the problem. Ideally this is not how perms should be managed.. but it might make it work for you.
chmod o+rw /dev/nvidia*
pam is black magic, if its broken and managing permissions incorrectly I probably can't help fix it right
"..the triumph of evil is for good men to do nothing."
VIDIA video driver RPMs for Fedora
:: see yum repo at livna.org