[mythtv-users] RE:/dev/dsp device or resource busy ??

[Seth Lake]

happened again.  i loaded up ksysguard and found aplay at the top of my
tree.  then i found knotify down towards the bottom.  i killed knotify and
mythfrontend started right up.

i also renamed artsd and artdsp to ge them out of the loop, i still have the
device busy probs.

----- Original Message ----- 
From: <myth at h2cs.com>
To: <mythtv-users at mythtv.org>
Sent: Saturday, November 08, 2003 12:45 PM
Subject: [mythtv-users] RE:/dev/dsp device or resource busy ??


> Seth,
> If you are running KDE, the next time you get this error run ksysguard
> from a console.  Select the checkbox for Tree, and then look for
> knotify.  On my system Aplay is a subprocess of knotify, and I am trying
> to see if it is a universal problem, or am I just lucky?  If you have
> knotify/aplay, you can select aplay and then press the kill button.
> That frees up /dev/dsp on my system.  Please let me know if this works
> for you, so I can try to figure out a permanent solution.  If it doesn't
> let me know that too, so I can start looking elsewhere for the problem.
>
> There had been a solution posted that said to disable the Arts sound
> system in KDE, which I did, but I still had the problem.  Killing
> knotify's aplay process seems to do the trick.
>
> Message: 21
> Date: Sat, 8 Nov 2003 07:56:11 -0500
> From: "Seth Lake" <caver at verizon.net>
> Subject: [mythtv-users] /dev/dsp device or resource busy ??
> To: <mythtv-users at mythtv.org>
> Message-ID: <000d01c3a5f8$b543fcb0$2f01a8c0 at papasan>
> Content-Type: text/plain; charset="iso-8859-1"
>
> it looks like Mandrake 9.1 has OSS stock, which was working alright for
> me (besides only being allowed 1 program to use the device at a time)
> but i'm running into problems getting programs like ogle to work, they
> want ALSA.  also, i'm told ALSA has better sound quality anyhow.  been
> beating my head against this machine for almost a week now.  anyways...
>
> i get a '/dev/dsp device or resource busy' error message all the time
> now.  a 'fuser -v /dev/dsp' shows nothing.  'top' shows that aplay is
> hogging resources on programs that try to wait for the device to become
> un-busy (like mplayer).  aplay uses 90%+ for awhile and then sometimes
> it kicks in (mplayer starts working and plays the video file normally)
> after awhile (sometimes mplayer sits there for over 30 minutes before it
> starts up!).  mythtv just dies 90% of the time and miraculously works
> 10% with no changes at all in the environment.  when it does work i get
> these nasty vertical lines with my latest IVTV CVS, but that's another
> story.
>
> anyone have any clues for me?  i've checked permissions (755 on /dev/dsp
> and /dev/sound/*), i've renamed /usr/bin/artsd and /usr/bin/artsdsp
> because i've read that they can cause problems.  i do not need a
> bi-directional card (although it should be, i would imagine) because i'm
> using a pvr-250.
>
> Mandrake 9.1 / 2.4.21-0.25mdk kernel
> Celeron 500 / 256MB
> PVR-250
> Soundblaster PCI128 (ens1371 chip)
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