Mailing List Archive: MythTV: Users

Help with volume control in mythtv

Index | Next | Previous | View Threaded

sdkovacs at gmail

Feb 18, 2008, 7:20 PM

Post #1 of 12 (3466 views)
Permalink

Help with volume control in mythtv

I moved my hardware over to a slightly newer box this weekend, and
everything is working fine, with the exception of volume control in
Mythtv. When playing back any sound, the volume buttons on the remote
control no longer affect the volume. In alsamixer, the only item that
will affect the volume is the 'Headphone' setting. But how do I get
the volume buttons on the remote control to map to Headphone instead
of PCM or Master? In Setup-->General-->Audio, I tried changing Mixer
Controls to Headphone, but no luck. Does anyone have any ideas?

Thanks in advance.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

mtdean at thirdcontact

Feb 18, 2008, 8:01 PM

Post #2 of 12 (3363 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

On 02/18/2008 10:20 PM, sdkovacs wrote:
> I moved my hardware over to a slightly newer box this weekend, and
> everything is working fine, with the exception of volume control in
> Mythtv. When playing back any sound, the volume buttons on the remote
> control no longer affect the volume. In alsamixer, the only item that
> will affect the volume is the 'Headphone' setting. But how do I get
> the volume buttons on the remote control to map to Headphone instead
> of PCM or Master? In Setup-->General-->Audio, I tried changing Mixer
> Controls to Headphone, but no luck. Does anyone have any ideas?

Plug your audio cable into the proper jack...

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

sarah at sarahhayes

Feb 19, 2008, 4:25 AM

Post #3 of 12 (3360 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

Michael T. Dean wrote:
> On 02/18/2008 10:20 PM, sdkovacs wrote:
>
>> I moved my hardware over to a slightly newer box this weekend, and
>> everything is working fine, with the exception of volume control in
>> Mythtv. When playing back any sound, the volume buttons on the remote
>> control no longer affect the volume. In alsamixer, the only item that
>> will affect the volume is the 'Headphone' setting. But how do I get
>> the volume buttons on the remote control to map to Headphone instead
>> of PCM or Master? In Setup-->General-->Audio, I tried changing Mixer
>> Controls to Headphone, but no luck. Does anyone have any ideas?
>>
>
> Plug your audio cable into the proper jack...
>
> Mike
>

If colour coded, aim for the blue one :) It's usually line-out. And
yes, I've stuck a little label on mine marked "this one" because I get
it wrong.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

abostock at gmail

Feb 19, 2008, 4:56 AM

Post #4 of 12 (3394 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

On 19/02/2008, Sarah Hayes <sarah [at] sarahhayes> wrote:
>
> Michael T. Dean wrote:
> > On 02/18/2008 10:20 PM, sdkovacs wrote:
> >
> >> I moved my hardware over to a slightly newer box this weekend, and
> >> everything is working fine, with the exception of volume control in
> >> Mythtv. When playing back any sound, the volume buttons on the remote
> >> control no longer affect the volume. In alsamixer, the only item that
> >> will affect the volume is the 'Headphone' setting. But how do I get
> >> the volume buttons on the remote control to map to Headphone instead
> >> of PCM or Master? In Setup-->General-->Audio, I tried changing Mixer
> >> Controls to Headphone, but no luck. Does anyone have any ideas?
> >>
> >
> > Plug your audio cable into the proper jack...
> >
> > Mike
> >
>
> If colour coded, aim for the blue one :) It's usually line-out. And
> yes, I've stuck a little label on mine marked "this one" because I get
> it wrong.
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>

Green is usually Line-out, with Blue as Line-in and Pink being Mic.

Ash

sdkovacs at gmail

Feb 19, 2008, 7:24 AM

Post #5 of 12 (3344 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

On Feb 18, 2008 11:01 PM, Michael T. Dean <mtdean [at] thirdcontact> wrote:
>
> On 02/18/2008 10:20 PM, sdkovacs wrote:
> > I moved my hardware over to a slightly newer box this weekend, and
> > everything is working fine, with the exception of volume control in
> > Mythtv. When playing back any sound, the volume buttons on the remote
> > control no longer affect the volume. In alsamixer, the only item that
> > will affect the volume is the 'Headphone' setting. But how do I get
> > the volume buttons on the remote control to map to Headphone instead
> > of PCM or Master? In Setup-->General-->Audio, I tried changing Mixer
> > Controls to Headphone, but no luck. Does anyone have any ideas?
>
> Plug your audio cable into the proper jack...
>
> Mike

I wish it were that simple. There are 3 jacks in the back of the box:

Blue: Line-in from the PVR350
Green: Line out to the back of the TV
Red: Microphone (unused)

So I don't see where else I can plug in the jack that goes out to the
TV. If it's any help, here's the output the audio portion of lspci.
00:1f.5 Multimedia audio controller: Intel Corporation 82801BA/BAM
AC'97 Audio Controller (rev 05)

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

chriseverest at gmail

Feb 19, 2008, 8:42 AM

Post #6 of 12 (3344 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

On Feb 19, 2008 10:24 AM, sdkovacs <sdkovacs [at] gmail> wrote:

> On Feb 18, 2008 11:01 PM, Michael T. Dean <mtdean [at] thirdcontact> wrote:
> >
> > On 02/18/2008 10:20 PM, sdkovacs wrote:
> > > I moved my hardware over to a slightly newer box this weekend, and
> > > everything is working fine, with the exception of volume control in
> > > Mythtv. When playing back any sound, the volume buttons on the remote
> > > control no longer affect the volume. In alsamixer, the only item that
> > > will affect the volume is the 'Headphone' setting. But how do I get
> > > the volume buttons on the remote control to map to Headphone instead
> > > of PCM or Master? In Setup-->General-->Audio, I tried changing Mixer
> > > Controls to Headphone, but no luck. Does anyone have any ideas?
> >
> > Plug your audio cable into the proper jack...
> >
> > Mike
>
> I wish it were that simple. There are 3 jacks in the back of the box:
>
> Blue: Line-in from the PVR350
> Green: Line out to the back of the TV
> Red: Microphone (unused)
>

if you are using /dev/dsp as your audio device, you can specify "Headphone"
in your "Mixer Controls" field by simply typing it in. In my experience can
be the string label that alsamixer uses.

--
Chris Everest

sarah at sarahhayes

Feb 19, 2008, 8:52 AM

Post #7 of 12 (3348 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

Ashley Bostock wrote:
> On 19/02/2008, *Sarah Hayes* <sarah [at] sarahhayes
> <mailto:sarah [at] sarahhayes>> wrote:
>
> Michael T. Dean wrote:
> > On 02/18/2008 10:20 PM, sdkovacs wrote:
> >
> >> I moved my hardware over to a slightly newer box this weekend, and
> >> everything is working fine, with the exception of volume control in
> >> Mythtv. When playing back any sound, the volume buttons on the
> remote
> >> control no longer affect the volume. In alsamixer, the only
> item that
> >> will affect the volume is the 'Headphone' setting. But how do I get
> >> the volume buttons on the remote control to map to Headphone
> instead
> >> of PCM or Master? In Setup-->General-->Audio, I tried changing
> Mixer
> >> Controls to Headphone, but no luck. Does anyone have any ideas?
> >>
> >
> > Plug your audio cable into the proper jack...
> >
> > Mike
> >
>
> If colour coded, aim for the blue one :) It's usually line-out. And
> yes, I've stuck a little label on mine marked "this one" because I get
> it wrong.
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv <mailto:mythtv-users [at] mythtv>
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
>
> Green is usually Line-out, with Blue as Line-in and Pink being Mic.
>
So much for the universal colouring eh? On mine green is
amplified/headphones, blue line-out and pink/red mic/line-in (alegedly),
never tried it.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

dbrieck at gmail

Feb 19, 2008, 9:28 AM

Post #8 of 12 (3346 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

On Feb 19, 2008 11:42 AM, Chris Everest <chriseverest [at] gmail> wrote:
>
> if you are using /dev/dsp as your audio device, you can specify "Headphone"
> in your "Mixer Controls" field by simply typing it in. In my experience can
> be the string label that alsamixer uses.
>
>
>
> --
> Chris Everest
>

I second this one. I had to manually type in the name in the mixer
control area to get mine to work correctly.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

sdkovacs at gmail

Mar 4, 2008, 8:04 PM

Post #9 of 12 (3216 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

On Tue, Feb 19, 2008 at 12:28 PM, David Brieck Jr. <dbrieck [at] gmail> wrote:
> On Feb 19, 2008 11:42 AM, Chris Everest <chriseverest [at] gmail> wrote:
> >
> > if you are using /dev/dsp as your audio device, you can specify "Headphone"
> > in your "Mixer Controls" field by simply typing it in. In my experience can
> > be the string label that alsamixer uses.
> >
> >
> >
> > --
> > Chris Everest
> >
>
> I second this one. I had to manually type in the name in the mixer
> control area to get mine to work correctly.
>

I tried that previously, and tried it again tonight. I'm including a
link to a screenshot to make sure that we talking about the same
setting. Again, the 'Headphone' mixer device is the only one that
truly controls volume, but mythtv seems to only change the volume on
the PCM device, regardless of what is in Mixer Controls.

Please see:
http://i27.tinypic.com/ienz2x.jpg

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

mtdean at thirdcontact

Mar 4, 2008, 9:24 PM

Post #10 of 12 (3214 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

On 03/04/2008 11:04 PM, sdkovacs wrote:

> On Tue, Feb 19, 2008 at 12:28 PM, David Brieck Jr. wrote:
>
> > On Feb 19, 2008 11:42 AM, Chris Everest wrote:
> >
> >> if you are using /dev/dsp as your audio device, you can specify
> >> "Headphone" in your "Mixer Controls" field by simply typing it
> >> in. In my experience can be the string label that alsamixer
> >> uses.
> >
> > I second this one. I had to manually type in the name in the mixer
> > control area to get mine to work correctly.
>
> I tried that previously, and tried it again tonight. I'm including a
> link to a screenshot to make sure that we talking about the same
> setting. Again, the 'Headphone' mixer device is the only one that
> truly controls volume, but mythtv seems to only change the volume on
> the PCM device, regardless of what is in Mixer Controls.
>
> Please see: http://i27.tinypic.com/ienz2x.jpg

The only supported values in Myth (at least with OSS or ALSA) are Master
and PCM. The code checks to see if the value is Master, and, if not,
uses PCM. So, anything you type in is nothing more than a placebo.

To solve your problem, you have 3 options:
1) Since your sound card does not have a 'Master' control, you can
actually define a softvol control named 'Master' using the ALSA
configuration file (~/.asoundrc or /etc/asound.conf), then use this to
change the volume. Doing so has all the down sides of using a software
volume control.
2) You can disable "Use internal volume controls" and use an
external script to control volume.
3) You can get a different sound card.

(There is a 4--write a patch--but I'll leave it out of the list. If,
however, you want to do that, let me know as there are a few people you
should probably talk to first (some who have plans for where the MythTV
ALSA/OSS code will be going in the future).)

Mike

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

dbrieck at gmail

Mar 5, 2008, 10:20 AM

Post #11 of 12 (3199 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

On Tue, Mar 4, 2008 at 11:04 PM, sdkovacs <sdkovacs [at] gmail> wrote:
> I tried that previously, and tried it again tonight. I'm including a
> link to a screenshot to make sure that we talking about the same
> setting. Again, the 'Headphone' mixer device is the only one that
> truly controls volume, but mythtv seems to only change the volume on
> the PCM device, regardless of what is in Mixer Controls.
>
> Please see:
> http://i27.tinypic.com/ienz2x.jpg
>
> Thanks.

That's what I'm talking about. I'll see if I can take a screen shot
tonight of exactly what I have in mine. For some reason I thought I
put it in mixer device, but I can't remember.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

dbrieck at gmail

Mar 5, 2008, 7:16 PM

Post #12 of 12 (3194 views)
Permalink

Re: Help with volume control in mythtv [In reply to]

On Wed, Mar 5, 2008 at 1:20 PM, David Brieck Jr. <dbrieck [at] gmail> wrote:
> On Tue, Mar 4, 2008 at 11:04 PM, sdkovacs <sdkovacs [at] gmail> wrote:
> > I tried that previously, and tried it again tonight. I'm including a
> > link to a screenshot to make sure that we talking about the same
> > setting. Again, the 'Headphone' mixer device is the only one that
> > truly controls volume, but mythtv seems to only change the volume on
> > the PCM device, regardless of what is in Mixer Controls.
> >
> > Please see:
> > http://i27.tinypic.com/ienz2x.jpg
> >
> > Thanks.
>
> That's what I'm talking about. I'll see if I can take a screen shot
> tonight of exactly what I have in mine. For some reason I thought I
> put it in mixer device, but I can't remember.
>

I have ALSA:default as the audio output device, Mixer Device as
default, and Mixer Controls as Front.

I think using ALSA instead of dsp is the key to getting this to work.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

Index | Next | Previous | View Threaded

Interested in having your list archived? Contact Gossamer Threads