[mythtv-users] Swapping PCI cards kills X

[Greg Oliver]

On Wed, Oct 13, 2010 at 11:38 PM, mike at grounded.net <mike at grounded.net> wrote:
> I have another thread going but it's so long that it's confusing. I believe most of the input and points made help to solve the original question. I also believe that once I get back this current problem that I will be able to have a myth box up and running at this point.
>
> Problem is, I had a PVR-500 card installed on the system.
> I also have an nvidia 220GT card in the same system.
> The kernel is PAE and everything is fully updated.
>
> The nvidia driver seemed to load fine as I did see the logo when rebooting and of course X came up.
> I wanted to quickly test to see if a card I thought was bad might be ok so I shut the system down, replaced the PVR-500 with an HVR-1600 and rebooted the system so I could take a look at lspci and dmesg.
>
> Upon reboot, I noticed the nvidia driver was no longer popping up and worse, X is no longer coming up either. The front end isn't coming up and I'm of course having an x11vnc problem since it cannot find a display.
>
> Someone suggested needing to put an option in grub.conf but from what I can tell, that's not the problem. What ever the problem is, it's something to do with a driver that's loading and preventing X from loading.
> It seems to me that the system has detected the new card but drivers for the old card are loading which is somehow messing up X.
>
> Any thoughts on this sort of problem?
>
> Thanks.
>
/var/log/Xorg.0.log (or something close to that will say why X is failing)