** Description changed: see also here http://ubuntuforums.org/showthread.php?t=1305459 for some reasons the upgrade breaks proprietary graphics drivers this means a flickering screen without the possibility to login or startx. + + ATTENTION + + Since this bug report is being linked to by news stories, it is getting + viewed by many people with nvidia bugs that fail in similar ways but due + to unrelated causes. I'd like to direct them to more appropriate bug + reports: + + The "blinks on reboot" issue is a bug in gdm, bug #441638. That blinking + symptom will occur for any sort of failure of X to start, and there are + a lot of reasons why X may not start, so be aware that just because + someone else is reporting this same blinking behavior does not + necessarily mean you have the same underlying cause as them, so keep + digging. This is causing lots of confusion in bug reports. + + For those who have upgraded since Intrepid or earlier, there is an issue + reported where /sbin/lrm-video can cause nvidia to fail loading. That + file no longer exists in Jaunty or Karmic and you can safely delete it + as a work around. Bug #467490 describes this issue. I don't know how + common this is, but if it is common we may need to make sure the + upgrader removes the file properly. Manually uninstalling all nvidia + packages *might* clear the file. + + For people running -rt kernels, such as Ubuntu Studio users, -nvidia has + a known incompatibility there, see bug #464125 for example. Similar + situation for -pae kernels, see bug #454220 as a recent example. + + Someone mentioned that "the upgrader disables the proprietary drivers". + According to mvo, that is not correct, or at least not intentional. + However, the upgrader *does* remove driver entries from xorg.conf if the + driver is no longer present after upgrade. As far as I know, this should + all work seamlessly for people, however several people have reported + that removing their xorg.conf and reinstalling -nvidia helped, so it is + possible there is an error in this logic. If you suspect this is the + case, what we need is a full bug report filed using 'ubuntu-bug xorg'; + in particular we need to see the xorg.conf files so we understand how + the upgrader is misbehaving. + + I see a lot in forum articles the advice that "the solution" is to + remove "nvidia" or "fglrx" lines from xorg.conf. While this may help in + getting the system functioning again, please note that it is not a + solution - it merely turns off the proprietary drivers. Whatever the + original problem was is still there, you're just using different video + drivers. Also, be aware that both nvidia and fglrx install GL and other + libraries on top of the normal system libraries, so if you install one + of those drivers and then use something else, it may work for 2D but you + may run into severe problems for 3D. This is also a known issue - bug + 258038 describes one possible solution we will be considering for Lucid. + It's a hard problem to solve for proprietary drivers though. + + There are almost certainly more nvidia bugs, but we also have plenty of + other bug reports (over 300 against -nvidia so far), many of which have + been reported using ubuntu-bug so are closer to having the information + we need. + + Finally, regarding people skills, actually after thousands of X bug + reports those get worn down to a raw nub so I don't think I have them + any more. All that's left is a grumpy X maintainer. + + p.s. Also see bug 438398 which appears to be the root cause for a lot of + the nvidia failures. Unfortunately jockey may not be flagging these + errors to the user (bug 441638) leading them to reboot without the + nvidia driver fully installed.
-- upgrade breaks graphic drivers and x, preventing login or startx https://bugs.launchpad.net/bugs/464591 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
