Re: [mythtv-users] PVR-500: problems with sound

[Petr Stehlik]

Stef Coene píše v Út 17. 01. 2006 v 23:39 +0100:
> Still not working, even when changing audio channels.  "Tuner Audio In" is 
> Input 0, so I need "ivtvctl -d /dev/video1 -q 0.
> I upgraded to kernel 2.6.15.1 + ivtv 0.4.2 so only module ivtv is from ivtv, 
> the rest is form the kernel.  Still not working.
> 
> Help :(
> My last option is swapping the PVR500 for the software based capture card I 
> had before :(
> 
> Has anyone an idea why changing channels can enable sound?  What exactly 
> happens when you change the channel ?

FYI: I got PVR150 and have exactly opposite problem: first tuning after
MythTV start gets sound but any subsequent tuning to same or different
channel = no sound at all.

And I haven't found an ivtvctl trick yet that would re-enabled the sound
reliably.

Petr


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Re: [mythtv-users] PVR-500: problems with sound

[Stef Coene]

On Tuesday 24 January 2006 02:48, Intense Red wrote:
>  > I am experiencing a problem similar to yours with a PVR-500 that I loose
>  > sound on one of the tuners when I come backup on after I do a reboot or
>  > a shutdown. I have to disconnect the power to the back of my box for 60
>  > seconds or so then plug it back in and it works fine. You may want to
>  > give it a try and see if it helps any. Good luck and make sure you post
>  > what you do to fix the problem.
>
>Hi Allan,
>
>Did you resolve this issue?  If so, how?  (I tried your cold boot
> suggestion, but no luck.)
I was able to fix it.  Check out
http://www.mythtv.org/wiki/index.php/Hauppauge_PVR-500#No_sound_on_first_recording
for a script that I wrote to fix the sound issue.  This is for the problem 
where changing channels fixes the sound problem.

Stef
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Re: [mythtv-users] PVR-500: problems with sound

[Intense Red]

 > I am experiencing a problem similar to yours with a PVR-500 that I loose
 > sound on one of the tuners when I come backup on after I do a reboot or a
 > shutdown. I have to disconnect the power to the back of my box for 60
 > seconds or so then plug it back in and it works fine. You may want to give
 > it a try and see if it helps any. Good luck and make sure you post what
 > you do to fix the problem.
 
   Hi Allan,

   Did you resolve this issue?  If so, how?  (I tried your cold boot 
suggestion, but no luck.)

   I've been wracking my brain trying to get a 350 and 500 to play nice 
together and it sounds quite similar to your problem.  My 350 works fine, but 
the 500's tuners only do video and do not either record sound nor play sound 
in live TV.


-- 
Upgrade your old legacy Windows XP machines to GNU/Linux!
For info see .
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Re: [mythtv-users] PVR-500: problems with sound

[Stef Coene]

On Wednesday 18 January 2006 01:14, Greg Woods wrote:
> On Wed, 2006-01-18 at 01:02 +0100, Stef Coene wrote:
> > Anyway, I keep running
> > while true; do ivtvctl -d /dev/video1 -q 0; sleep 10; done
> > in a login prompt for now.
>
> I obviously can't comment on your particular situation, nor am I an
> expert on how ivtv works. That said, what I have observed on my system
> is, it has never been necessary to repeat the ivtvctl command once it
> has been set correctly once. However, there doesn't seem to be any
> consistency in what the argument to -q is. Sometimes it's 0, 1, or 2. I
> just have to trial-and-error it until I get it right, but once set, it
> works until the next reboot.
I have to execute each time I start live tv or record something.

How does mythtv select the audio input?
And it looks like there is a difference between selecting audio input on first 
tune and changing channels.


Stef
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Re: [mythtv-users] PVR-500: problems with sound

[Greg Woods]

On Wed, 2006-01-18 at 01:02 +0100, Stef Coene wrote:

> Anyway, I keep running
> while true; do ivtvctl -d /dev/video1 -q 0; sleep 10; done
> in a login prompt for now.
> 

I obviously can't comment on your particular situation, nor am I an
expert on how ivtv works. That said, what I have observed on my system
is, it has never been necessary to repeat the ivtvctl command once it
has been set correctly once. However, there doesn't seem to be any
consistency in what the argument to -q is. Sometimes it's 0, 1, or 2. I
just have to trial-and-error it until I get it right, but once set, it
works until the next reboot.

--Greg


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Re: [mythtv-users] PVR-500: problems with sound

[Stef Coene]

On Tuesday 17 January 2006 23:39, Stef Coene wrote:
> > I used to have a command "ivtvctl -d /dev/video1 -q 1" in my rc.local
> > script, and for a while that worked, but now every time the system is
> > rebooted, one of the tuners comes up without sound, and I have to poke
> > around with ivtvctl commands manually to restore it.
>
> Still not working, even when changing audio channels.  "Tuner Audio In" is
> Input 0, so I need "ivtvctl -d /dev/video1 -q 0.
Mhhh it seems to work :)  I have to execute "ivtvctl -d /dev/video1 -q 0" 
while playing something and wait 5 seconds befor the sound starts working.
"ivtvctl  -a" shows no difference before and after executing "ivtvctl 
-d /dev/video1 -q 0".  Still it does something because sound is working.

Anyway, I keep running
while true; do ivtvctl -d /dev/video1 -q 0; sleep 10; done
in a login prompt for now.


Stef
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Re: [mythtv-users] PVR-500: problems with sound

[Stef Coene]

On Tuesday 17 January 2006 22:54, Greg Woods wrote:
> I've got the same problem, and I always have to execute an "ivtvctl -q"
> command to recover it. It gets associated with the wrong audio input. I
> still have ivtv-0.3.7a, and my understanding is that this particular
> problem is fixed in later versions of the driver, but I haven't had time
> to try upgrading yet. It hurts the WAF though when her favorite sci-fi
> shows are missed due to lack of sound in the recording )-: so I will
> probably get around to upgrading eventually.
>
> I used to have a command "ivtvctl -d /dev/video1 -q 1" in my rc.local
> script, and for a while that worked, but now every time the system is
> rebooted, one of the tuners comes up without sound, and I have to poke
> around with ivtvctl commands manually to restore it.
Still not working, even when changing audio channels.  "Tuner Audio In" is 
Input 0, so I need "ivtvctl -d /dev/video1 -q 0.
I upgraded to kernel 2.6.15.1 + ivtv 0.4.2 so only module ivtv is from ivtv, 
the rest is form the kernel.  Still not working.

Help :(
My last option is swapping the PVR500 for the software based capture card I 
had before :(

Has anyone an idea why changing channels can enable sound?  What exactly 
happens when you change the channel ?

Stef
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Re: [mythtv-users] PVR-500: problems with sound

[Greg Woods]

On Tue, 2006-01-17 at 21:32 +0100, Stef Coene wrote:
> On Tuesday 17 January 2006 17:03, Allan Wilson wrote:
> > I am experiencing a problem similar to yours with a PVR-500 that I loose
> > sound on one of the tuners when I come backup on after I do a reboot

I've got the same problem, and I always have to execute an "ivtvctl -q"
command to recover it. It gets associated with the wrong audio input. I
still have ivtv-0.3.7a, and my understanding is that this particular
problem is fixed in later versions of the driver, but I haven't had time
to try upgrading yet. It hurts the WAF though when her favorite sci-fi
shows are missed due to lack of sound in the recording )-: so I will
probably get around to upgrading eventually.

I used to have a command "ivtvctl -d /dev/video1 -q 1" in my rc.local
script, and for a while that worked, but now every time the system is
rebooted, one of the tuners comes up without sound, and I have to poke
around with ivtvctl commands manually to restore it.

--Greg

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Re: [mythtv-users] PVR-500: problems with sound

[Stef Coene]

On Tuesday 17 January 2006 17:03, Allan Wilson wrote:
> I am experiencing a problem similar to yours with a PVR-500 that I loose
> sound on one of the tuners when I come backup on after I do a reboot or a
> shutdown. I have to disconnect the power to the back of my box for 60
> seconds or so then plug it back in and it works fine. You may want to give
> it a try and see if it helps any. Good luck and make sure you post what you
> do to fix the problem.
Problem is not fixed, but I'm almost sure it's mythtv related.

After powering off the server for a few minutes, I did a simple "ivtv-tune -f 
224,cd25 /dev/video0" to tune to channel (it replied with /dev/video0: 
224.000 MHz  (Signal Detected)) and "cat /dev/video0 > test.mpeg" and I had 
sound + video.  So the ivtv drivers are working.

Nobody has a clue about what could be the problem ??

Right now I'm compiling ivtv-0.5 to see if that would help.


Stef
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Re: [mythtv-users] PVR-500: problems with sound

[Allan Wilson]

I am experiencing a problem similar to yours with a PVR-500 that I loose sound on one of the tuners when I come backup on after I do a reboot or a shutdown. I have to disconnect the power to the back of my box for 60 seconds or so then plug it back in and it works fine. You may want to give it a try and see if it helps any. Good luck and make sure you post what you do to fix the problem.
AllanOn 1/17/06, Stef Coene <[EMAIL PROTECTED]> wrote:
Hi,I searched the mythtv and ivtv archives, but couldn't find an answer.I have a brand new PVR-500 that's working like it should be, execept that thefirst time I tune to a channel, I have no sound :(  After changing to a
another channel, sound is working like it should be and keeps working like itshoud be.  Idem for recordings, no sound.After a reboot, the first time I go in live-tv, I only get static.  Afterthat, when I go to live-tv, I get a channel but no sound.  So it looks that
the first tuning attempt produces no sound and that changing channels fixesthis.Strange thing is that sometimes, I get sound.  I played with it tonight: Irebooted the box, unloaded and reloaded modules, ... and sometimes I got
sound on my first tune attempt.  The problem is I don't know what exactly Iwhen it worked, it seems random to me :(I don't think I made an error configuring everything.More info: ivtv 0.4.2 (loading fine, no errors in dmes), custom kernel,
dedicated backend, debian, mythtv 18.1, recording is fine using a softwarebased card, ... plz ask for more info if you want.If no one can help, I will post this to the ivtv mailing list.Stef
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[mythtv-users] PVR-500: problems with sound

[Stef Coene]

Hi,

I searched the mythtv and ivtv archives, but couldn't find an answer.

I have a brand new PVR-500 that's working like it should be, execept that the 
first time I tune to a channel, I have no sound :(  After changing to a 
another channel, sound is working like it should be and keeps working like it 
shoud be.  Idem for recordings, no sound.

After a reboot, the first time I go in live-tv, I only get static.  After 
that, when I go to live-tv, I get a channel but no sound.  So it looks that 
the first tuning attempt produces no sound and that changing channels fixes 
this.

Strange thing is that sometimes, I get sound.  I played with it tonight: I 
rebooted the box, unloaded and reloaded modules, ... and sometimes I got 
sound on my first tune attempt.  The problem is I don't know what exactly I 
when it worked, it seems random to me :(

I don't think I made an error configuring everything.
More info: ivtv 0.4.2 (loading fine, no errors in dmes), custom kernel, 
dedicated backend, debian, mythtv 18.1, recording is fine using a software 
based card, ... plz ask for more info if you want.

If no one can help, I will post this to the ivtv mailing list.


Stef
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