[pvrusb2] Poor analog picture on HVR-1950 after upgrade to 2.6.28 kernel

[Mike Isely]

On Fri, 5 Jun 2009, fivenote wrote:

> Mike,
> 
> I upgraded to kernel 2.6.28 (ubuntu jaunty). After the upgrade the
> digital side of the HVR-1950 tuner looked great (even improved), but
> the analog side has problems.
> 
> The picture seems zoomed and cut-off on the right side.

Just FYI for everyone else - Vincent also sent me an mpeg clip which 
demonstrates the same issue.  The image is stretched to the right and 
clipped.


> 
> I compiled and installed the latest v4l drivers and got the same
> results. I tested by setting the card to "television" via sysctl and
> playing via mplayer. I also tested with mythtv. I then plugged my
> digital camera into the analog inputs and got the same poor picture
> from the camera.
> 
> Is this a known problem? Can I provide more info or check anything else?

No, this is a new problem (or the return of a very old problem).  I 
don't have an answer right now.

Just to be clear - this also happened with the stock 2.6.28 kernel you 
got from ubuntu, with NO other v4l-dvb drivers or later pvrusb2 driver 
added to it?  Yes I know you also tried v4l-dvb and the standalone 
driver, but if you're seeing this *just* with the stuff in the 2.6.28 
kernel then that narrows the search space quite a bit.

Given the nature of the symptoms, this should be a big problem to a lot 
of people.  Has anyone else seen this?  I will try to reproduce it here 
as well.

  -Mike

-- 

Mike Isely
isely @ isely (dot) net
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