Mailing List Archive: Cannot open DSP problems

Cannot open DSP problems

Apr 25, 2003, 11:13 PM

Post #1 of 5 (1439 views)

from mythbackend:

Changing from None to WatchingLiveTV
Cannot open DSP '', dying.
Could not detect audio blocksize
Cannot open DSP '', exitingaudio volume set to '32768'
Changing from WatchingLiveTV to None

from mythfrontend:

connecting to backend server: 127.0.0.1:6543
Unable to open mixer: '/dev/mixer'
Changing from None to WatchingLiveTV
player: Can't open audio device: /dev/dsp
open audio:: No such file or directory

everything works with alsa. muted line in and set it to record device.
can test the driver with a .wav file.

- however, when I run ./setup and go to capture card, it won't let me
choose /dev/dsp for an audio source. before I switched from OSS to
alsa, /dev/dsp WAS an option. do i need to recompile the whole mythtv
program now that i switched to alsa? i don't think i should have to do
I?? it's just weird how /dev/dsp is apparently gone.

i knew i would have problems running mythfrontend but i was too
curious. obvously it is having problems finding audio and then kicks me
out when it doesn't.

chris

Re: Cannot open DSP problems [ In reply to ]

chris.rickert at mchsi

Apr 25, 2003, 11:44 PM

Post #2 of 5 (1412 views)

Permalink

On Sat, 2003-04-26 at 01:13, Chris Rickert wrote:
> from mythbackend:
>
> Changing from None to WatchingLiveTV
> Cannot open DSP '', dying.
> Could not detect audio blocksize
> Cannot open DSP '', exitingaudio volume set to '32768'
> Changing from WatchingLiveTV to None
>
>
> from mythfrontend:
>
> connecting to backend server: 127.0.0.1:6543
> Unable to open mixer: '/dev/mixer'
> Changing from None to WatchingLiveTV
> player: Can't open audio device: /dev/dsp
> open audio:: No such file or directory
>
>
> everything works with alsa. muted line in and set it to record device.
> can test the driver with a .wav file.
>
> - however, when I run ./setup and go to capture card, it won't let me
> choose /dev/dsp for an audio source. before I switched from OSS to
> alsa, /dev/dsp WAS an option. do i need to recompile the whole mythtv
> program now that i switched to alsa? i don't think i should have to do
> I?? it's just weird how /dev/dsp is apparently gone.
>
> i knew i would have problems running mythfrontend but i was too
> curious. obvously it is having problems finding audio and then kicks me
> out when it doesn't.
>
> chris

update

i'v noticed in my /dev/dsp that it's linked to /dev/sound/dsp - which is
no longer there. did this happen when i changed from oss to alsa? how
does one restore that?

chris
--
Chris Rickert <chris.rickert@mchsi.com>

Re: Re: Cannot open DSP problems [ In reply to ]

bjm at lvcm

Apr 26, 2003, 1:50 AM

Post #3 of 5 (1371 views)

Permalink

Chris Rickert wrote:
...
> i'v noticed in my /dev/dsp that it's linked to /dev/sound/dsp - which is
> no longer there. did this happen when i changed from oss to alsa? how
> does one restore that?

It's possible that the "snddevices" script in your
alsa-driver-0.9.2 dir needs to be run (as root). This
should create the device files and symlinks.

-- bjm

Re: Cannot open DSP problems [ In reply to ]

chris.rickert at mchsi

Apr 26, 2003, 6:29 PM

Post #4 of 5 (1423 views)

Permalink

i'v noticed in my /dev/dsp that it's linked to /dev/sound/dsp - which is
> no longer there. did this happen when i changed from oss to alsa?
> how
> does one restore that?

It's possible that the "snddevices" script in your
alsa-driver-0.9.2 dir needs to be run (as root). This
should create the device files and symlinks.

-- bjm
-----------------------

bjm,
--
Chris Rickert <chris.rickert@mchsi.com>

chris

Re: Cannot open DSP problems [ In reply to ]

chris.rickert at mchsi

Apr 26, 2003, 7:12 PM

Post #5 of 5 (1409 views)

Permalink

It's possible that the "snddevices" script in your
alsa-driver-0.9.2 dir needs to be run (as root). This
should create the device files and symlinks.

-- bjm

sorry about the blank post prior to this

i don't have the alsa-driver-0.9.2 directory. i used the mandrake 9.0 alsa-utils.rpm
to set everything up. /lib/modules/kernel/sound/pci is the location of where via82xx
sound drivers are. i don't see anything about snddevices in that location?? any ideas?

--
Chris Rickert <chris.rickert@mchsi.com>