Comment 41 for bug 464591

It is save, in case you feel able to fix the problems like described in
the release notes. In case you want to have things work out of the box,
I advice you to continue with 9.4

Ciao, Stefan.

<email address hidden> wrote:
> I still have the same Bug. i Upgrade and i install from cero i
> mean i do a clean instal and my graphic card ATI radeon breaks.
>
> Claudio Fron Chile
>
> 2010/2/6 joherrer <email address hidden>
>
>
>> I am invited now to upgrade to 9.10.
>> I first installed 9.10 and had to quit due to nvidia.
>> Then my son installed 9.4 and it is doing well.
>> ¿Is it safe to accept the challenge upgrade?
>>
>> --
>> 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 direct subscriber
>> of the bug.
>>
>> Status in “xorg” package in Ubuntu: Invalid
>>
>> Bug description:
>> 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.
>>
>>
>> To unsubscribe from this bug, go to:
>> https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/464591/+subscribe
>>
>>
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