Mailing List Archive: MythTV: Users

Can't record or watch live TV

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stevem at scn

Jul 27, 2012, 8:27 PM

Post #1 of 6 (887 views)
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Can't record or watch live TV

I have the latest mythtv (mythbackend version: fixes/0.25
[v0.25.2-8-g3256849]) on mythbuntu 12.04. I'm getting the following error
in my mythbackend.log

Jul 27 17:22:11 mythbox mythbackend[8561]: W CoreContext dvbchannel.cpp:227
(Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Opening DVB frontend device
failed.#012#011#011#011eno: Device or resource busy (16)
Jul 27 17:22:12 mythbackend[8561]: last message repeated 19 times
Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext dvbchannel.cpp:232
(Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Failed to open DVB frontend
device due to fatal error or too many attempts.
Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
channelbase.cpp:1229 (CreateChannel) ChannelBase: CreateChannel() Error:
Failed to open device /dev/dvb/adapter0/frontend0
Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
main_helpers.cpp:196 (setupTVs) Problem with capture cardsCard 11failed init
Jul 27 17:22:12 mythbox mythbackend[8561]: W CoreContext
main_helpers.cpp:211 (setupTVs) MythBackend: No valid capture cards are
defined in the database.

Seems like I have a permissions problem, but I'm not sure were to look.
Any ideas?

a.j.longchamps at gmail

Jul 30, 2012, 12:36 PM

Post #2 of 6 (829 views)
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Re: Can't record or watch live TV [In reply to]

What does your dmesg say about the drivers for your card? I'm asking since
there's an error saying "failed init".

-Aaron

On Fri, Jul 27, 2012 at 11:27 PM, Stephen Myers <stevem [at] scn> wrote:

> I have the latest mythtv (mythbackend version: fixes/0.25
> [v0.25.2-8-g3256849]) on mythbuntu 12.04. I'm getting the following error
> in my mythbackend.log
>
> Jul 27 17:22:11 mythbox mythbackend[8561]: W CoreContext
> dvbchannel.cpp:227 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Opening
> DVB frontend device failed.#012#011#011#011eno: Device or resource busy (16)
> Jul 27 17:22:12 mythbackend[8561]: last message repeated 19 times
> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
> dvbchannel.cpp:232 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Failed
> to open DVB frontend device due to fatal error or too many attempts.
> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
> channelbase.cpp:1229 (CreateChannel) ChannelBase: CreateChannel() Error:
> Failed to open device /dev/dvb/adapter0/frontend0
> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
> main_helpers.cpp:196 (setupTVs) Problem with capture cardsCard 11failed init
> Jul 27 17:22:12 mythbox mythbackend[8561]: W CoreContext
> main_helpers.cpp:211 (setupTVs) MythBackend: No valid capture cards are
> defined in the database.
>
>
> Seems like I have a permissions problem, but I'm not sure were to look.
> Any ideas?
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
>

stevem at scn

Jul 30, 2012, 2:01 PM

Post #3 of 6 (833 views)
Permalink

Re: Can't record or watch live TV [In reply to]

I didn't see anything unusual. It's an Intel video. It's working now.
Not sure what happened, maybe a lock cleared.

On Mon, Jul 30, 2012 at 12:36 PM, Aaron Longchamps <a.j.longchamps [at] gmail
> wrote:

> What does your dmesg say about the drivers for your card? I'm asking since
> there's an error saying "failed init".
>
> -Aaron
>
> On Fri, Jul 27, 2012 at 11:27 PM, Stephen Myers <stevem [at] scn> wrote:
>
>> I have the latest mythtv (mythbackend version: fixes/0.25
>> [v0.25.2-8-g3256849]) on mythbuntu 12.04. I'm getting the following error
>> in my mythbackend.log
>>
>> Jul 27 17:22:11 mythbox mythbackend[8561]: W CoreContext
>> dvbchannel.cpp:227 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Opening
>> DVB frontend device failed.#012#011#011#011eno: Device or resource busy (16)
>> Jul 27 17:22:12 mythbackend[8561]: last message repeated 19 times
>> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
>> dvbchannel.cpp:232 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Failed
>> to open DVB frontend device due to fatal error or too many attempts.
>> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
>> channelbase.cpp:1229 (CreateChannel) ChannelBase: CreateChannel() Error:
>> Failed to open device /dev/dvb/adapter0/frontend0
>> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
>> main_helpers.cpp:196 (setupTVs) Problem with capture cardsCard 11failed init
>> Jul 27 17:22:12 mythbox mythbackend[8561]: W CoreContext
>> main_helpers.cpp:211 (setupTVs) MythBackend: No valid capture cards are
>> defined in the database.
>>
>>
>> Seems like I have a permissions problem, but I'm not sure were to look.
>> Any ideas?
>>
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users [at] mythtv
>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>
>>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
>

hoodlum7 at gmail

Jul 30, 2012, 4:54 PM

Post #4 of 6 (824 views)
Permalink

Re: Can't record or watch live TV [In reply to]

On Mon, Jul 30, 2012 at 2:01 PM, Stephen Myers <stevem [at] scn> wrote:

> I didn't see anything unusual. It's an Intel video. It's working now.
> Not sure what happened, maybe a lock cleared.
>
>
> On Mon, Jul 30, 2012 at 12:36 PM, Aaron Longchamps <
> a.j.longchamps [at] gmail> wrote:
>
>> What does your dmesg say about the drivers for your card? I'm asking
>> since there's an error saying "failed init".
>>
>> -Aaron
>>
>> On Fri, Jul 27, 2012 at 11:27 PM, Stephen Myers <stevem [at] scn> wrote:
>>
>>> I have the latest mythtv (mythbackend version: fixes/0.25
>>> [v0.25.2-8-g3256849]) on mythbuntu 12.04. I'm getting the following error
>>> in my mythbackend.log
>>>
>>> Jul 27 17:22:11 mythbox mythbackend[8561]: W CoreContext
>>> dvbchannel.cpp:227 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Opening
>>> DVB frontend device failed.#012#011#011#011eno: Device or resource busy (16)
>>> Jul 27 17:22:12 mythbackend[8561]: last message repeated 19 times
>>> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
>>> dvbchannel.cpp:232 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Failed
>>> to open DVB frontend device due to fatal error or too many attempts.
>>> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
>>> channelbase.cpp:1229 (CreateChannel) ChannelBase: CreateChannel() Error:
>>> Failed to open device /dev/dvb/adapter0/frontend0
>>> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
>>> main_helpers.cpp:196 (setupTVs) Problem with capture cardsCard 11failed init
>>> Jul 27 17:22:12 mythbox mythbackend[8561]: W CoreContext
>>> main_helpers.cpp:211 (setupTVs) MythBackend: No valid capture cards are
>>> defined in the database.
>>>
>>>
>>> Seems like I have a permissions problem, but I'm not sure were to look.
>>> Any ideas?
>>>
>>> _______________________________________________
>>> mythtv-users mailing list
>>> mythtv-users [at] mythtv
>>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>>
>>>
>>
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users [at] mythtv
>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>
>>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
>

Are you setup to use EIT on your DVB card? What kind of capture card is it?
--
Working on World Domination since 2001

michael at thewatsonfamily

Jul 30, 2012, 5:21 PM

Post #5 of 6 (820 views)
Permalink

Re: Can't record or watch live TV [In reply to]

On 28/07/2012 1:27 PM, Stephen Myers wrote:
> I have the latest mythtv (mythbackend version: fixes/0.25
> [v0.25.2-8-g3256849]) on mythbuntu 12.04. I'm getting the following
> error in my mythbackend.log
>
> Jul 27 17:22:11 mythbox mythbackend[8561]: W CoreContext
> dvbchannel.cpp:227 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0):
> Opening DVB frontend device failed.#012#011#011#011eno: Device or
> resource busy (16)
> Jul 27 17:22:12 mythbackend[8561]: last message repeated 19 times
> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
> dvbchannel.cpp:232 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0):
> Failed to open DVB frontend device due to fatal error or too many
> attempts.
> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
> channelbase.cpp:1229 (CreateChannel) ChannelBase: CreateChannel()
> Error: Failed to open device /dev/dvb/adapter0/frontend0
> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
> main_helpers.cpp:196 (setupTVs) Problem with capture cardsCard
> 11failed init
> Jul 27 17:22:12 mythbox mythbackend[8561]: W CoreContext
> main_helpers.cpp:211 (setupTVs) MythBackend: No valid capture cards
> are defined in the database.
>
>
> Seems like I have a permissions problem, but I'm not sure were to
> look. Any ideas?
>

Check the permissions on /dev/dvb/adapter0. The user that runs the
mythtv backend should be a member of the same group that owns the
capture card.

*ls -lh /dev/dvb/adapter0/**
crw-rw----+ 1 root video 212, 1 Jul 30 11:15 /dev/dvb/adapter0/demux0
crw-rw----+ 1 root video 212, 2 Jul 30 11:15 /dev/dvb/adapter0/dvr0
crw-rw----+ 1 root video 212, 0 Jul 30 11:15 /dev/dvb/adapter0/frontend0
crw-rw----+ 1 root video 212, 3 Jul 30 11:15 /dev/dvb/adapter0/net0

*cat /etc/group | grep video*
video:x:44:mythtv

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

stevem at scn

Jul 30, 2012, 5:52 PM

Post #6 of 6 (822 views)
Permalink

Re: Can't record or watch live TV [In reply to]

pchdtv hd-5500. Not using EIT. I'm setup for cable. Like I said it's
working now.

On Mon, Jul 30, 2012 at 4:54 PM, Chris Porter <hoodlum7 [at] gmail> wrote:

>
>
> On Mon, Jul 30, 2012 at 2:01 PM, Stephen Myers <stevem [at] scn> wrote:
>
>> I didn't see anything unusual. It's an Intel video. It's working now.
>> Not sure what happened, maybe a lock cleared.
>>
>>
>> On Mon, Jul 30, 2012 at 12:36 PM, Aaron Longchamps <
>> a.j.longchamps [at] gmail> wrote:
>>
>>> What does your dmesg say about the drivers for your card? I'm asking
>>> since there's an error saying "failed init".
>>>
>>> -Aaron
>>>
>>> On Fri, Jul 27, 2012 at 11:27 PM, Stephen Myers <stevem [at] scn> wrote:
>>>
>>>> I have the latest mythtv (mythbackend version: fixes/0.25
>>>> [v0.25.2-8-g3256849]) on mythbuntu 12.04. I'm getting the following error
>>>> in my mythbackend.log
>>>>
>>>> Jul 27 17:22:11 mythbox mythbackend[8561]: W CoreContext
>>>> dvbchannel.cpp:227 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Opening
>>>> DVB frontend device failed.#012#011#011#011eno: Device or resource busy (16)
>>>> Jul 27 17:22:12 mythbackend[8561]: last message repeated 19 times
>>>> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
>>>> dvbchannel.cpp:232 (Open) DVBChan(11:/dev/dvb/adapter0/frontend0): Failed
>>>> to open DVB frontend device due to fatal error or too many attempts.
>>>> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
>>>> channelbase.cpp:1229 (CreateChannel) ChannelBase: CreateChannel() Error:
>>>> Failed to open device /dev/dvb/adapter0/frontend0
>>>> Jul 27 17:22:12 mythbox mythbackend[8561]: E CoreContext
>>>> main_helpers.cpp:196 (setupTVs) Problem with capture cardsCard 11failed init
>>>> Jul 27 17:22:12 mythbox mythbackend[8561]: W CoreContext
>>>> main_helpers.cpp:211 (setupTVs) MythBackend: No valid capture cards are
>>>> defined in the database.
>>>>
>>>>
>>>> Seems like I have a permissions problem, but I'm not sure were to
>>>> look. Any ideas?
>>>>
>>>> _______________________________________________
>>>> mythtv-users mailing list
>>>> mythtv-users [at] mythtv
>>>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>>>
>>>>
>>>
>>> _______________________________________________
>>> mythtv-users mailing list
>>> mythtv-users [at] mythtv
>>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>>
>>>
>>
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users [at] mythtv
>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>
>>
>
> Are you setup to use EIT on your DVB card? What kind of capture card is it?
> --
> Working on World Domination since 2001
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
>

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