[mdlug] Audio errors in Debian 7

[Jeff Hanson]

Is it running PulseAudio? If yes then it could be tying up the sound
device.  Try using pasuspender with aplay.

My Google searching results indicated the wall message occurs if the output
is redirected.

On Mon, Oct 13, 2014 at 1:32 AM, David Lee Lambert <davidl at lmert.com> wrote:

> On two desktops and a laptop, all running Debian, I have a couple of cron
> jobs that check whether any of my children are logged on at our standard
> bedtime (8:00 PM nights before school, no check otherwise) and forcibly
> logs them off.  Actually, there's a "warning" script that runs five minutes
> before (write to all consoles, and use text-to-speech to issue an audio
> warning), and a "Good Night" text-to-speech at the appointed time.
>
> Since update to Debian 7, the commands "festival --tts" and "wall" are
> giving errors.  Any advice on how to remediate?
>
> -------- Original Message --------
> Subject:        Cron <root at huitzil> /usr/local/sbin/bedtime kill
> Date:   Thu, 02 Oct 2014 20:00:18 -0400
> From:   root at lmert.com (Cron Daemon)
> To:     root at lmert.com
>
>
>
> logging off - Following children are still logged in...
>    tlazoh
> ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
> aplay: main:682: audio open error: Device or resource busy
> ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
> aplay: main:682: audio open error: Device or resource busy
> [Thu Oct  2 20:00:18 EDT 2014] - done
>
> -------- Original Message --------
> Subject:        Cron <root at huitzil> /usr/local/sbin/bedtime warn
> Date:   Thu, 02 Oct 2014 19:54:03 -0400
> From:   root at lmert.com (Cron Daemon)
> To:     root at lmert.com
>
>
>
> warning - Following children are still logged in...
>    tlazoh
> wall: cannot get tty name: Inappropriate ioctl for device
> wall: cannot open file -: No such file or directory
> ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
> aplay: main:682: audio open error: Device or resource busy
> ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
> aplay: main:682: audio open error: Device or resource busy
>
>
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