Mailing List Archive: hardware problem...??

hardware problem...??

Nov 27, 2002, 11:52 PM

Post #1 of 10 (2272 views)

First off - I am a total Linux newbie.this will be my first Linux
install ever. Using the How-To docs here I got pretty far.I manged to
get everything installed (XML::Twig is still being goofy, but it allowed
me to install XMLTV anyway) and have even opened MythTV Frontend for the
very first time (it was pretty exciting, really).

The problem I am running into now is that it is telling me that I don't
have a capture card.I assumed it was going to be the default (silly me),
but when I went into the hardware manager in RH8, it didn't give it a
device name (like dev/dsp0) instead just saying N/A. XAWTV works (I
don't have cable hooked up to the tuner, but if I press my finger
against it, one station almost comes in ;-), so the card is working, but
it isn't labeled. I think.

I know this isn't an "all for Linux help group", but if anyone could
point me to a good resource for my newbie questions, I'd appreciate it.
I've been to LinuxNewbie.com, but it didn't seem to cover this. Keep in
mind that I don't understand a lot of what is going on, so the more
explanation, the better. :)

Thanks,

--
Nathan Ziarek
http://www.ziarek.com/

Re: hardware problem...?? [ In reply to ]

calvinharrigan at earthlink

Nov 28, 2002, 2:39 PM

Post #2 of 10 (2255 views)

Permalink

On Thu, 2002-11-28 at 01:52, Nathan Ziarek wrote:
> First off - I am a total Linux newbie.this will be my first Linux
> install ever. Using the How-To docs here I got pretty far.I manged to
> get everything installed (XML::Twig is still being goofy, but it allowed
> me to install XMLTV anyway) and have even opened MythTV Frontend for the
> very first time (it was pretty exciting, really).
>
> The problem I am running into now is that it is telling me that I don't
> have a capture card.I assumed it was going to be the default (silly me),
> but when I went into the hardware manager in RH8, it didn't give it a
> device name (like dev/dsp0) instead just saying N/A. XAWTV works (I
> don't have cable hooked up to the tuner, but if I press my finger
> against it, one station almost comes in ;-), so the card is working, but
> it isn't labeled. I think.
>
> I know this isn't an "all for Linux help group", but if anyone could
> point me to a good resource for my newbie questions, I'd appreciate it.
> I've been to LinuxNewbie.com, but it didn't seem to cover this. Keep in
> mind that I don't understand a lot of what is going on, so the more
> explanation, the better. :)
>
> Thanks,
>
> --
> Nathan Ziarek
> http://www.ziarek.com/
>
>
>
> _______________________________________________
> mythtv-dev mailing list
> mythtv-dev@snowman.net
> http://www.snowman.net/mailman/listinfo/mythtv-dev

Did you run setup from the mythtv/setup directory after you finished the
install? I know it seems obvious but it's an easily forgetten step.

Calvin...

RE: hardware problem...?? [ In reply to ]

nathan at ziarek

Nov 28, 2002, 7:06 PM

Post #3 of 10 (2225 views)

Permalink

The problem isn't setup - I ran that and it asks you for the location
(or name...whatever "dsp/dev0" would be called) and I don't know where
that is. The only place I can think to look is the Hardware Manager and
all it tells me is N/A...I attached the image of it.

Do I have to specify the name of the capture device or does that happen
when it is installed? Where do I find this name?

Nate

RE: hardware problem...?? [ In reply to ]

nathan at ziarek

Nov 28, 2002, 10:18 PM

Post #4 of 10 (2236 views)

Permalink

OK...i ran XAWTV -hwscan and it said that it was getting my video from
dev/video0...that much seems fine. However, what isn't working still is
the sound. I have on board, which I know is a headache for a lot of
people here, but I can't figure out what the dev/ name of it is...I
guess another question is: do I want the device name of the onboard
sound or the sound coming through the tuner card?

Any help is greatly appreciated...

Nate

RE: hardware problem...?? [ In reply to ]

nathan at ziarek

Nov 29, 2002, 11:21 AM

Post #5 of 10 (2209 views)

Permalink

This is the error I get when opening MythTV to watch TV...the EPG,
conflict resolution, etc works fine, but locks on me when I click watch
TV...

Changing from None to WatchingLiveTV
setting sample rate to 32000 failed
Could not detect audio blocksize
Cannot open DSP '/dev/audio', exiting
VIDIOCSAUDIO: Bad file descriptor

Any help is appreciated,

Nate

RE: hardware problem...?? [ In reply to ]

help at pdscc

Nov 29, 2002, 11:56 AM

Post #6 of 10 (2257 views)

Permalink

What does running "ls -la /dev/audio" return?

On 29 Nov 2002 at 12:21, Nathan Ziarek wrote:

> conflict resolution, etc works fine, but locks on me when I click watch
> TV...
>
> Could not detect audio blocksize
> Cannot open DSP '/dev/audio', exiting

--
Harondel J. Sibble
Sibble Computer Consulting
Creating solutions for the small business and home computer user.
help@pdscc.com (use pgp keyid 0x3AD5C11D) http://www.pdscc.com
(604) 739-3709 (voice/fax) (604) 686-2253 (pager)

RE: hardware problem...?? [ In reply to ]

nathan at ziarek

Nov 29, 2002, 12:24 PM

Post #7 of 10 (2216 views)

Permalink

I browsed through the dev/ folder and found two other audio DSPs

I tried the ls command on all of them:

[root@localhost /]# ls -la /dev/audio
crw------- 1 root root 14, 4 Aug 30 18:31 /dev/audio

[root@localhost /]# ls -la /dev/audio1
crw------- 1 root root 14, 20 Aug 30 18:31 /dev/audio1

[root@localhost /]# ls -la /dev/audioctl
crw------- 1 root root 14, 7 Aug 30 18:31 /dev/audioctl

Thanks for your help,

Nate

Re: hardware problem...?? [ In reply to ]

bjm at lvcm

Nov 29, 2002, 9:31 PM

Post #8 of 10 (2250 views)

Permalink

Nathan Ziarek wrote:
> Cannot open DSP '/dev/audio', exiting
> VIDIOCSAUDIO: Bad file descriptor

"Cannot open" usually means that the user doesn't have
permissions to read or write to the file...

> [root@localhost /]# ls -la /dev/audio
> crw------- 1 root root 14, 4 Aug 30 18:31 /dev/audio

The first few characters say that only the owner "root"
can read and write. As root, try "chmod 666 /dev/audio".
then ls -l should show the permissions "crw-rw-rw-". Run
xawtv again as a regular user. If you still don't get sound,
use a mixer program to unmute and set the volume for "line"
assuming you plugged the external mini-jack into line-in.
Once you get sound from xawtv, use the mixer to leave the
volume where you like and mute "line" then try mythfrontend.

Hope this helps,

-- bjm

Re: hardware problem...?? [ In reply to ]

ijr at po

Nov 29, 2002, 11:08 PM

Post #9 of 10 (2245 views)

Permalink

On Friday 29 November 2002 11:31 pm, Bruce Markey wrote:
> Nathan Ziarek wrote:
> > Cannot open DSP '/dev/audio', exiting
> > VIDIOCSAUDIO: Bad file descriptor
>
> "Cannot open" usually means that the user doesn't have
> permissions to read or write to the file...
>
> > [root@localhost /]# ls -la /dev/audio
> > crw------- 1 root root 14, 4 Aug 30 18:31 /dev/audio
>
> The first few characters say that only the owner "root"
> can read and write. As root, try "chmod 666 /dev/audio".
> then ls -l should show the permissions "crw-rw-rw-". Run
> xawtv again as a regular user. If you still don't get sound,
> use a mixer program to unmute and set the volume for "line"
> assuming you plugged the external mini-jack into line-in.
> Once you get sound from xawtv, use the mixer to leave the
> volume where you like and mute "line" then try mythfrontend.

Other thing is, you shouldn't be using /dev/audio. /dev/dsp is what's needed.

Isaac

RE: hardware problem...?? [ In reply to ]

thormj at ieee

Dec 1, 2002, 8:59 PM

Post #10 of 10 (2181 views)

Permalink

For some reason, on my computer I needed to run motv. Just running it once
seemed to fix the sound out (evidently xawtv didn't turn on the lineout?!).

Avermedia TV Studio98, nForce 1 board.

-Thor

-----Original Message-----
From: mythtv-dev-admin@snowman.net
[mailto:mythtv-dev-admin@snowman.net]On Behalf Of Nathan Ziarek
Sent: Friday, November 29, 2002 12:19 AM
To: mythtv-dev@snowman.net
Subject: RE: [mythtv] hardware problem...??

OK...i ran XAWTV -hwscan and it said that it was getting my video from
dev/video0...that much seems fine. However, what isn't working still is
the sound. I have on board, which I know is a headache for a lot of
people here, but I can't figure out what the dev/ name of it is...I
guess another question is: do I want the device name of the onboard
sound or the sound coming through the tuner card?

Any help is greatly appreciated...

Nate

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