Mailing List Archive: MythTV: Dev

DVB cards that support Terrestrial and Cable

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msmith999999 at gmail

May 3, 2012, 2:25 AM

Post #1 of 5 (363 views)
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DVB cards that support Terrestrial and Cable

Hi,

I've been playing with Terratec Cinergy T cards. The second tuner on
these supports DVB-T and DVB-C but the drxk driver always initializes
them as DVB-C. I have a UK Freeview setup so when myth tries to tune
the card it doesn't work as it uses the wrong set of parameters.

I've come up with 3 possible approaches to get round this:

1.) Modify myth so it can set the tuner type as part of tuning
2.) Modify the driver so it can be told which standard to initialize with
3.) Run a utility at startup that switches the card to DVB-T

3.) is an easy hack that will solve my problem. As the others involve
more work and would probably mean hassle in getting my employer to
assign copyright I thought I'd see what people think about this before
diving into the code.

Thanks,

Martin
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scottcmoncrieff at gmail

May 3, 2012, 4:30 AM

Post #2 of 5 (347 views)
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Re: DVB cards that support Terrestrial and Cable [In reply to]

I could use a fix for this if you have one. Have you got a way of
switching the card to DVB-T?

I have the card working on a system running 11.10 but just installed
12.04 (on another drive) and built the LinuxTV drivers and it doesn't
see it anymore.

On Thu, May 3, 2012 at 10:25 AM, Martin Smith <msmith999999 [at] gmail> wrote:
> Hi,
>
> I've been playing with Terratec Cinergy T cards. The second tuner on
> these supports DVB-T and DVB-C but the drxk driver always initializes
> them as DVB-C. I have a UK Freeview setup so when myth tries to tune
> the card it doesn't work as it uses the wrong set of parameters.
>
> I've come up with 3 possible approaches to get round this:
>
> 1.) Modify myth so it can set the tuner type as part of tuning
> 2.) Modify the driver so it can be told which standard to initialize with
> 3.) Run a utility at startup that switches the card to DVB-T
>
> 3.) is an easy hack that will solve my problem. As the others involve
> more work and would probably mean hassle in getting my employer to
> assign copyright I thought I'd see what people think about this before
> diving into the code.
>
> Thanks,
>
> Martin
> _______________________________________________
> mythtv-dev mailing list
> mythtv-dev [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-dev
_______________________________________________
mythtv-dev mailing list
mythtv-dev [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-dev

scottcmoncrieff at gmail

May 4, 2012, 10:56 AM

Post #3 of 5 (333 views)
Permalink

Re: DVB cards that support Terrestrial and Cable [In reply to]

The developer of the driver apparently said this about the problem
" the driver use the new DVB-v5-API. It use a frontend pro tuner (not all
apps using the right call to switch between dvb-c and dvb-t - i.e. mythtv)."
Does this help? There is a thread about this on the ubuntu forum
On May 3, 2012 12:30 PM, "Scott Moncrieff" <scottcmoncrieff [at] gmail>
wrote:

> I could use a fix for this if you have one. Have you got a way of
> switching the card to DVB-T?
>
> I have the card working on a system running 11.10 but just installed
> 12.04 (on another drive) and built the LinuxTV drivers and it doesn't
> see it anymore.
>
>
> On Thu, May 3, 2012 at 10:25 AM, Martin Smith <msmith999999 [at] gmail>
> wrote:
> > Hi,
> >
> > I've been playing with Terratec Cinergy T cards. The second tuner on
> > these supports DVB-T and DVB-C but the drxk driver always initializes
> > them as DVB-C. I have a UK Freeview setup so when myth tries to tune
> > the card it doesn't work as it uses the wrong set of parameters.
> >
> > I've come up with 3 possible approaches to get round this:
> >
> > 1.) Modify myth so it can set the tuner type as part of tuning
> > 2.) Modify the driver so it can be told which standard to initialize with
> > 3.) Run a utility at startup that switches the card to DVB-T
> >
> > 3.) is an easy hack that will solve my problem. As the others involve
> > more work and would probably mean hassle in getting my employer to
> > assign copyright I thought I'd see what people think about this before
> > diving into the code.
> >
> > Thanks,
> >
> > Martin
> > _______________________________________________
> > mythtv-dev mailing list
> > mythtv-dev [at] mythtv
> > http://www.mythtv.org/mailman/listinfo/mythtv-dev
>

mtdean at thirdcontact

May 4, 2012, 11:16 AM

Post #4 of 5 (329 views)
Permalink

Re: DVB cards that support Terrestrial and Cable [In reply to]

http://www.gossamer-threads.com/lists/mythtv/users/516174#516174

On 05/04/2012 01:56 PM, Scott Moncrieff wrote:
> The developer of the driver apparently said this about the problem
> " the driver use the new DVB-v5-API. It use a frontend pro tuner (not all
> apps using the right call to switch between dvb-c and dvb-t - i.e. mythtv)."
> Does this help? There is a thread about this on the ubuntu forum
> On May 3, 2012 12:30 PM, "Scott Moncrieff"<scottcmoncrieff [at] gmail>
> wrote:
>
>> I could use a fix for this if you have one. Have you got a way of
>> switching the card to DVB-T?
>>
>> I have the card working on a system running 11.10 but just installed
>> 12.04 (on another drive) and built the LinuxTV drivers and it doesn't
>> see it anymore.
>>
>>
>> On Thu, May 3, 2012 at 10:25 AM, Martin Smith<msmith999999 [at] gmail>
>> wrote:
>>> Hi,
>>>
>>> I've been playing with Terratec Cinergy T cards. The second tuner on
>>> these supports DVB-T and DVB-C but the drxk driver always initializes
>>> them as DVB-C. I have a UK Freeview setup so when myth tries to tune
>>> the card it doesn't work as it uses the wrong set of parameters.
>>>
>>> I've come up with 3 possible approaches to get round this:
>>>
>>> 1.) Modify myth so it can set the tuner type as part of tuning
>>> 2.) Modify the driver so it can be told which standard to initialize with
>>> 3.) Run a utility at startup that switches the card to DVB-T
>>>
>>> 3.) is an easy hack that will solve my problem. As the others involve
>>> more work and would probably mean hassle in getting my employer to
>>> assign copyright I thought I'd see what people think about this before
>>> diving into the code.
>>>
>>> Thanks,
>>>
>>> Martin
>>>

_______________________________________________
mythtv-dev mailing list
mythtv-dev [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-dev

scottcmoncrieff at gmail

May 4, 2012, 12:00 PM

Post #5 of 5 (334 views)
Permalink

Re: DVB cards that support Terrestrial and Cable [In reply to]

Thanks. Sorry for spamming the dev mailing list.
On May 4, 2012 7:17 PM, "Michael T. Dean" <mtdean [at] thirdcontact> wrote:

>
> http://www.gossamer-threads.**com/lists/mythtv/users/516174#**516174<http://www.gossamer-threads.com/lists/mythtv/users/516174#516174>
>
>
> On 05/04/2012 01:56 PM, Scott Moncrieff wrote:
>
>> The developer of the driver apparently said this about the problem
>> " the driver use the new DVB-v5-API. It use a frontend pro tuner (not all
>> apps using the right call to switch between dvb-c and dvb-t - i.e.
>> mythtv)."
>> Does this help? There is a thread about this on the ubuntu forum
>> On May 3, 2012 12:30 PM, "Scott Moncrieff"<scottcmoncrieff@**gmail.com<scottcmoncrieff [at] gmail>
>> >
>> wrote:
>>
>> I could use a fix for this if you have one. Have you got a way of
>>> switching the card to DVB-T?
>>>
>>> I have the card working on a system running 11.10 but just installed
>>> 12.04 (on another drive) and built the LinuxTV drivers and it doesn't
>>> see it anymore.
>>>
>>>
>>> On Thu, May 3, 2012 at 10:25 AM, Martin Smith<msmith999999 [at] gmail>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> I've been playing with Terratec Cinergy T cards. The second tuner on
>>>> these supports DVB-T and DVB-C but the drxk driver always initializes
>>>> them as DVB-C. I have a UK Freeview setup so when myth tries to tune
>>>> the card it doesn't work as it uses the wrong set of parameters.
>>>>
>>>> I've come up with 3 possible approaches to get round this:
>>>>
>>>> 1.) Modify myth so it can set the tuner type as part of tuning
>>>> 2.) Modify the driver so it can be told which standard to initialize
>>>> with
>>>> 3.) Run a utility at startup that switches the card to DVB-T
>>>>
>>>> 3.) is an easy hack that will solve my problem. As the others involve
>>>> more work and would probably mean hassle in getting my employer to
>>>> assign copyright I thought I'd see what people think about this before
>>>> diving into the code.
>>>>
>>>> Thanks,
>>>>
>>>> Martin
>>>>
>>>>
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>

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