https://bugs.launchpad.net/ubuntu/+source/linux-restricted-modules-2.6.20/+bug/97069 and https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/3731 may also be related.
https:/ /bugs.launchpad .net/ubuntu/ +source/ linux-restricte d-modules- 2.6.20/ +bug/97069 and https:/ /bugs.launchpad .net/ubuntu/ +source/ xorg/+bug/ 3731 may also be related.