One further addition: During boot up, I first get an X.org screen with the NVidia logo. After that I see the boot messages in text mode for a short while. After that I get the Low graphics mode message and when I Cancel that message within a couple of seconds the next thing is KDM. So apparently first normal boot with Nvidia is tried (and as I see the logo, apparently it works). Then somehow this is cancelled, the warning appears and when that is cancelled everything is fine.
I attached the Xorg.0.log.old file that seems to be the result of the first (failed?) attempt to start the X server. It does have a 'ddxSigGiveUp: Closing log' message so that might be the cause. ** Attachment added: "The log of the first, failed attempt to start the X server during boot" http://launchpadlibrarian.net/23754624/Xorg.0.log.old -- Invalid 'low graphics mode' warning https://bugs.launchpad.net/bugs/339595 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs