[mythtv-users] nVidia driver 304.88: problems

[Stephen Worthington]

On Mon, 15 Apr 2013 09:36:19 +1000, you wrote:

>Hi there.
>
>I did an update to my ubuntu 12.04LTS box yesterday. Small update...
>While it's usual for major ubuntu upgrade to break stuff (but that's
>another topic)
>
>It upgraded nvidia drivers from  295.40 to 304.88 ; which was quite
>surprising as usually it never do such a big steps in LTS release.
>
>Anyhow: it is very broken.
>This is on my main backend, which is also used as a frontend in my cinema
>room (plugged to a cinema projector)
>
>As soon as I turn off the projector, when I turn it back on I get no signal
>from the PC. I must then restart X / Window manager to get video signal
>going.
>Interestingly, if from the command line I start a VDPAU playback, signal
>comes back again (sometimes, not always), without having to restart X.
>
>Reverting back to 295.40 fixes all issues and for now, I've locked that
>version
>
>my xorg.conf hasn't changed much in years. I use the CustomEDID command so
>I can boot the PC even if the projector is off.
>
>Anyone has experienced similar issues with 304.88?
>I'd like to find the problem with those drivers because sooner or later, I
>would have no choice but upgrade :(
>
>Thanks

You did not say what your Nvidia card is.  I have had problems like
this twice in the last couple of years where the new Nvidia drivers
did not work with my GT220 card (Asus Bravo 220 silent).  Eventually,
a newer version has fixed the problem, but not usually for several
versions.  You should probably report the problem to Nvidia.  They
seem to not be testing new drivers properly with the older cards.

I think there were some recent changes in X also, but if changing back
to the old driver has fixed things, X is probably not where the
problem is.