[linux-dvb] Reception problems with af9015 based USB stick

[linux-dvb] Reception problems with af9015 based USB stick

[Richard Palmer]

Hi,

  After abandoning my nova-t pci card due to the never ending usb
  disconnect/i2c problems, I thought I'd try a cheap dvb stick from
  Maplin's (Twinhan af9015 based).

  Whilst it works well in single mode (in dual mode neither tuner
  worked), there seem to be a lot more 'pops' in the sound and blocks
  appearing in the picture. Are there any more tuning options I can try when
  loading the module?. I have re-scanned the channels in MythTV but no
  improvement. I know it's not a signal strength problem as both a set-top box
  and the nova-t ran from the same aerial without these problems.

  I'm running Mythbuntu on a 2.6.24-19 kernel.

Many thanks,

Richard

_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb

Re: [linux-dvb] Reception problems with af9015 based USB stick

[Antti Palosaari]

Richard Palmer wrote:
> Hi,
> 
>   After abandoning my nova-t pci card due to the never ending usb
>   disconnect/i2c problems, I thought I'd try a cheap dvb stick from
>   Maplin's (Twinhan af9015 based).

I have same stick here.
> 
>   Whilst it works well in single mode (in dual mode neither tuner
>   worked), there seem to be a lot more 'pops' in the sound and blocks
>   appearing in the picture. Are there any more tuning options I can try when
>   loading the module?. I have re-scanned the channels in MythTV but no
>   improvement. I know it's not a signal strength problem as both a set-top box
>   and the nova-t ran from the same aerial without these problems.

I made test version that uses different tuner driver. Please test if it 
helps. http://linuxtv.org/hg/~anttip/af9015-mxl500x/

> 
>   I'm running Mythbuntu on a 2.6.24-19 kernel.
> 
> Many thanks,
> 
> Richard

Antti
-- 
http://palosaari.fi/

_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb

Re: [linux-dvb] Reception problems with af9015 based USB stick

[Richard Palmer]

Hi,

On Sat, Nov 22, 2008 at 7:23 PM, Antti Palosaari <crope@iki.fi> wrote:
> Richard Palmer wrote:
>>  Whilst it works well in single mode (in dual mode neither tuner
>>  worked), there seem to be a lot more 'pops' in the sound and blocks
>>  appearing in the picture. Are there any more tuning options I can try
>> when
>>  loading the module?. I have re-scanned the channels in MythTV but no
>>  improvement. I know it's not a signal strength problem as both a set-top
>> box
>>  and the nova-t ran from the same aerial without these problems.
>
> I made test version that uses different tuner driver. Please test if it
> helps. http://linuxtv.org/hg/~anttip/af9015-mxl500x/

All the sound glitches have gone, the picture is almost perfect (a few
blocks occasionally but probably caused
by interference). Many thanks Antti.

I thought I'd push my luck and see if the dual tuner support worked
with the new driver, it seems to
as the first frontend is working just as well as in single mode now,
but no frontend device is appearing for
the second tuner so I can't test it.

Thanks again,

Richard

_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb