From Fedora Project Wiki

From the Desk of the Fedora Xorg developers:

Subject: Unavoidable Xorg package update problems

Greetings earthlings.

One of the regressions that was present in the xorg-x11-6.8.2-37.FC4.48.1 update (bug #168844), has been fixed in the latest update xorg-x11-6.8.2-37.FC4.49.2. Unfortunately, users will still see an error on upgrade which is unavoidable.

Also, you may end up with 2 copies of libGLU installed, which may cause further problems. This problem is also unavoidable.

Since these are 2 unavoidable problems users will experience when upgrading from the broken package to the current fixed package, I am asking people to please read and spread the URL around for instructions on how to work around these unavoidable problems.

Tell your friends. Tell your mom.

Root cause of problem: rpm sucks, film at 11 ;oP

Short version of solution without explanation:

rpm -e --allmatches --nodeps --noscripts xorg-x11-Mesa-libGLU

yum install xorg-x11-Mesa-libGLU

Important Notes: There is no need to report this problem to bugzilla. The problem has been reported in bug #168844, and fixed already. Even though it is fixed, you _WILL_ see the problem at least once no matter what, and that's unfortunately unavoidable.

Notes for i810 users: If you are experiencing problems with the i810 video driver with the latest Xorg update, such as the video no longer filling the screen to the edges, please read

Comment 13 in the report has instructions for working around the problem:

Please edit your xorg.conf, and add the following option to the "ServerFlags" section. If there is no ServerFlags section, create a new one as such:

Section "ServerFlags"
Option "PciOsConfig" "1"

Then save and exit, and reboot the system, then start the X server up again. If the problem is still present, remove the above option, and replace it with the following option instead, and try again:

Option "PCIProbe1" "1"

Does this option resolve the issue? If not, please try the following:

Option "PCIProbe2" "1"

If any of these 3 options work around the problem, please update the bug report to let us know which ones.

Be sure to reboot the machine before each try, to ensure a full hardware reset.

This will help us to narrow down wether the problem is related to the PCI configuration changes, or elsewhere. Thanks in advance for testing.