Bug#731654: dpkg-reconfigure fixed the link...

[ael]

On Mon, Dec 09, 2013 at 12:01:53AM +0100, Andreas Beckmann wrote:
> You shouldn't set symlinks manually, but use

dpkg-reconfigure glx-alternative-nvidia
  fixed the link (after I had removed my manual entry):-

ls -l /usr/lib/xorg/modules/drivers/
total 28
lrwxrwxrwx 1 root root    36 Dec  9 14:41 nvidia_drv.so -> /etc/alternatives/glx--nvidia_drv.so

So that part is solved.

It also seems to have fixed the glx alternatives:

update-alternatives --config glx
There are 2 choices for the alternative glx (providing /usr/lib/glx).

  Selection    Path                    Priority   Status
------------------------------------------------------------
* 0            /usr/lib/nvidia          100       auto mode
  1            /usr/lib/mesa-diverted   5         manual mode
  2            /usr/lib/nvidia          100       manual mode


Maybe a simple "conflicts" is all that is needed to avoid this sort of
problem??

ael