[linux-dvb] HD-3000 and nVidia conflict?

Rusty Scott rustys at ieee.org
Wed Nov 22 18:36:28 CET 2006


Dylan -
  It sounds like the issue could be a marginal power supply.  I'm not
fully familiar with the GeForce 6200 but have done a lot of testing with
the pcHDTV family of cards and various nvidia cards.  Signal lock is
very sensitive to the voltage stability of the PCI bus and your GeForce
6200 may be loading the system enough to drop the voltage causing signal
lock problems.  What is the rating of your power supply?

There is no direct interaction between the video drivers and the v4l-dvb
drivers in terms of "compatibility" so the issue is more external.

If you want to continue this discussion off list, I can give you some
suggestions on how to isolate the issue.

Sorry for the delayed response here.

Rusty

On Fri, 2006-11-10 at 14:27 -0500, Dylan Semler wrote:
> I've seen this problem reported around the internet a bit but I'm not
> sure what the status is.
> 
> Basically, any activity from my GeForce 6200 causes my HD-3000 to
> loose signal lock--resulting in a very corrupted mpegs.  This makes
> watching livetv impossible as well as bad recordings if I'm using my
> pc while a recording is going on (even for non-intensive tasks like
> browsing the internet). 
> 
> Is this a known issue?  If so, is it the fault of the GPU, pchdtv, or
> the driver?  Any hope of a resolution?  As always I will be more than
> happy to debug/supply more info if anyone feels motivated to solve
> this.
> 
> This does not occur with my GeForce 4200 when I plug that into the
> same system.  The problem does not seem to be limited to the 6200, as
> I've seen posts reporting similar problems with different NVidia
> models.
> 
> Cheers,
> -- 
> Dylan
> 
> Type faster.  Use Dvorak:
> http://dvzine.org 
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