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

[fivenote]

My ctl_resolution_ver/cur_val was 480.

I set it to 720 and mplayer looked normal!

I restarted mythbackend, started mythfrontend and it looks like myth
put ctl_resolution_ver/cur_val back to 480. I forced it back to 720
and myth looks normal as well - not cropped, no lines. It may be a bit
zoomed, but I can't tell just yet.

-vincent

On Fri, Jun 12, 2009 at 7:29 PM, Mike Isely<isely at isely.net> wrote:
>
> I just managed to reproduce at least one of the symptoms!  Do this:
>
> cat /sys/class/pvrusb2/*/ctl_resolution_hor/cur_val
>
> What do you see?  720?  640?
>
> The default value for that setting when the driver starts is 720.  But
> if I change it to 640, then I get the color stripes.  If you see 640,
> change it to 720 and try mplayer again.
>
> For the record, ctl_resolution_ver/cur_val I have is 480.
>
> It's entirely likely that MythTV is reprogramming the capture resolution
> - because it's something you can easily do when setting up a profile AND
> I believe the normal MythTV default for analog is 640!
>
> This is looking more and more like the problem that I dealt with a
> couple years ago.  Back then things were traced to an initialization
> issue with the cx25840 module - I had to call an additional
> unexpected entrypoint.  Obviously I'm going to go back and review that.
>
> If we're having problems with cx25840 initialization again then it could
> certainly also explain the video aspect distortions and cropping as
> well.
>
>  -Mike
>
>
> --
>
> Mike Isely
> isely @ isely (dot) net
> PGP: 03 54 43 4D 75 E5 CC 92 71 16 01 E2 B5 F5 C1 E8
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>



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