[pvrusb2] HVR1900 noisy video

[Martin MAURER]

On Tue, 2011-01-25 at 20:51 +0100, Martin Dauskardt wrote:
> > Date: Mon, 24 Jan 2011 19:38:28 +0100
> > From: Martin MAURER <martinmaurer at gmx.at>
> > Subject: Re: [pvrusb2] HVR1900 noisy video
> > To: pvrusb2 at isely.net
> > Message-ID: <1295894308.3284.4.camel at localhost>
> > Content-Type: text/plain; charset="iso-8859-1"
> > 
> > Hi Mike,
> > 
> > thanks for the information so far.
> > 
> > If I can do anything to help to debug this, just tell me. I am software
> > developer myself, but I don't have any knowledge about this topic.
> > 
> > My personal first priority would be to find a workaround to reliably
> > initialize the tuner correctly during startup. Currently I do:
> > - tune to an analog frequency
> > - record 5 seconds
> > - run a dvb scan
> > 
> > Yet I still get the problem with videos recorded afterwards. When I do a
> > dvb scan manually afterwards it somehow fixes itself. I have no idea why
> > the automatic approach of doing the scan would make any difference. (I
> > pipe the output to a file during startup, so I am definitely sure that
> > the dvb scan is done)
> > 
> > regards,
> > Martin
> 
> 
> My HVR 1900 shows this:
> [  430.837924] tveeprom 6-00a2: Hauppauge model 73219, rev D1E9, serial# 
> 5380960
> [  430.837929] tveeprom 6-00a2: MAC address is 00:0d:fe:52:1b:60
> [  430.837932] tveeprom 6-00a2: tuner model is Philips 18271_8295 (idx 149, 
> type 54)
> 
> There is no problem with noisy video. But I still run a 2.6.32 kernel.
> 
> 
> your box:
> [   16.028218] tveeprom 3-00a2: Hauppauge model 73219, rev D1F5, serial# 
> 7116487
> [   16.028228] tveeprom 3-00a2: MAC address is 00:0d:fe:6c:96:c7
> [   16.028236] tveeprom 3-00a2: tuner model is NXP 18271C2 (idx 155, type 54)
> 
> The driver is for both tuners the same. I suspect that there is a hardware 
> difference which would require to do some settings not only when using the dvb 
> device, but also for the analogue mode.
> 
> You could also try an older kernel. There are currently a lot of 
> regressions...
I tried with kernel 2.6.32 and 2.6.31. 
This doesn't change anything.
What was quite interesting: When I had all correctly set up in 2.6.35
and rebooted to 2.6.32 without unplugging the HVR1900 the video worked
fine. Don't know if this helps, if necessary I can try this again.

(before writing to the list I tried 2.6.35 and 2.6.37).

regards,
Martin

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