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

[Scott Doty]

On 06/12/2009 01:27 PM, Mike Isely wrote:
>
> I'm doing a capture with the (analog) composite input on an HVR-1950
> right now and the picture is perfect.  The source is a portable DVD
> player (in 4x3 mode) and I've even verified that the image aspect ratio
> is correct and that there's no clipping / cropping going on.
>
> I've tested with vanilla kernels 2.6.28.7 and 2.6.29.3, both times using
> the stock in-kernel pvrusb2 driver.
>
> At the moment I'm a bit at a loss here as to why you're seeing this.  If
> others can report this problem it might be helpful.
>
> Vincent: Is there any way you could possibly build and try a vanilla
> kernel?  I don't run ubuntu here and I test against vanilla kernels.
> Obviously if a vanilla kernel works then that's not the entire solution
> but then we'll at least know that the problem must have to do with
> something the Ubuntu folks did when they built that kernel.
>
> Also (though very unlikely as a cause), could you please post md5sum
> results for all the firmware on your system used by this driver?  On my
> Debian system, the firmware is in /usr/lib/hotplug/firmware and the
> files of interest for the HVR-1950 should be:
>
> 	v4l-cx25840.fw
> 	v4l-pvrusb2-73xxx-01.fw
> 	v4l-cx2341x-enc.fw
>
>    

Thanks for the post...at least now I know it _can_ work! :)

What software did you use to do the capture, and did you use v4l2-ctl to 
set anything beforehand?

Thanks...personally, I did that capture with MythTV, which is maybe 
where I should go talk to next...or maybe the rpmfusion guys...

  -Scott