[ATrpms-users] nvidia upgrade problem

[John Pilkington]

On 16/01/11 12:39, John Robinson wrote:
> On 16/01/2011 11:47, John Robinson wrote:
>> On 16/01/2011 00:18, Jeffrey J. Kosowsky wrote:
>> [...]
>>> Graphics was working fine before the yum update. I didn't reboot.
>>> All I did was "stop prefdm; start prefdm"
>>
>> There's the problem right there. You're still running the older kernel
>> module because you didn't reboot (or otherwise switch to the newer
>> kernel module; I imagine you could have stopped prefdm, unloaded the old
>> module, loaded the new one, and started prefdm instead of rebooting).
>
> It might have been sufficient to log out of X and in to a console,
> telinit 3, yum update nvidia-whatever, nvidia-graphics-switch if that
> wasn't done automatically by the rpm's post-install scripts, telinit 5,
> but I don't use nvidia-graphics so please excuse me if I'm talking out
> of my hat; all I'm sure of is that if X was running while you did the
> yum update or the nvidia-graphics-switch then it couldn't unload the old
> module and load the new module, giving the result that you saw.
>
> Cheers,
>
> John.

I hadn't come across telinit before and will try it if I do have a 
similar problem in future.  Meanwhile, this is a link to earlier posts; 
there have been significant changes since then, but the idea is the same.

http://www.gossamer-threads.com/lists/atrpms/users/13650#13650

Axel's suggestion there was:

>
> Try using nvidia-graphics-switch e.g.
>
> init 3
> rmmod nvidia
> nvidia-graphics-switch 195.36.15
> init 5


...where this is done as root from a console.  When I tried this the 
process usually seemed to require an extra 'Return' somewhere; I never 
found it quite as reliable as a reboot.

John P