nVidia with stock kernel crashes when leaving X

[Anders Karlsson]

On 11/23/05, 'Forum Post <ulist at gs1.ubuntuforums.org> wrote:
>
> I'm having the same problem, and it seems that many people are based on
> the number of posts about it.  However, no one seems to have come up
> with a solution.  This is one of the many posts:
> http://ubuntuforums.org/showthread.php?p=512237#post512237

Interesting. I have not tried what is described in the post, and how
he does it is cumbersome. Better way is to add the hoary deb line to
your sources.list and then set a line in apt.conf (iirc) to pin the
nvidia packages to hoary release. Then you are all set.

> Really need to fix this.

I agree, but if the problem is with nVidia, not much Ubuntu can do I am afraid.

> I tried "Option one", moving the .so file (renaming it) but still
> having same problem.  So annoying having to turn off the computer
> manually everytime I just want to ctrl+alt+backspace!

Ok, I don't quite see the same problem. For me the whole system will
just lock solid, at random times. It is related to the 5950U I have
though, as without the card, the system is stable. (However, the
Radeon 9200SE can not be used for NeverWinter Nights.)

> Anymore ideas?

I uninstalled the ubuntu nvidia packages ang grabbed the latest from
nvidia. I also run 2.6.14.2 home-cooked kernel where I made sure the
stack is 8K, no preempt and some other settings that may or may not
affect it.

There is one thing that has been hinted at in the nvidia forums, and
that is that the newer agpgart drivers in >=2.6.8 (somewhen around
that kernel it changed) is causing a problem and there is a patch for
nvidia-6629 to allow it to compile on later kernels and you have to
set NvAGP=1 (i.e., use nvidia internal AGP routines, not the kernels).
Perhaps if a custom kernel did not have agpgart compiled in, or it was
prevented from loading, the newer nvidia drivers would behave better?

YMMV and #include "disclaimer.h" and so on...

--
Anders Karlsson <trudheim at gmail.com>