Quoting Bart Schaefer <barton.schaefer at gmail.com>:> As I mentioned on a thread about flash-plugin a few days ago, I'm > having trouble with my sound device getting "stuck" and thereby > causing problems for anything that accesses it, like video playback. > > Rebooting the machine "fixes" it for a while, but it's unpredictable > for how long -- sometimes months go by without it recurring, sometimes > it happens every couple of days. Right now I'm in one of the latter > phases. > > Any suggestions on how I could reset the controller without having to > reboot? (Or suggestions for where else I might ask this question?) > Below is output from "lshw" for the audio controller, and "lsmod" for > the sound modules that are loaded. This is CentOS 4.7.<snip> I have similar problems in CentOS 5. I disable and enable the flash plugin in firefox, and it seems to be corrected. My problem may be slightly different, but this is how I 'fix' the problem.
As I mentioned on a thread about flash-plugin a few days ago, I'm having trouble with my sound device getting "stuck" and thereby causing problems for anything that accesses it, like video playback. Rebooting the machine "fixes" it for a while, but it's unpredictable for how long -- sometimes months go by without it recurring, sometimes it happens every couple of days. Right now I'm in one of the latter phases. Any suggestions on how I could reset the controller without having to reboot? (Or suggestions for where else I might ask this question?) Below is output from "lshw" for the audio controller, and "lsmod" for the sound modules that are loaded. This is CentOS 4.7. *-multimedia UNCLAIMED description: Multimedia audio controller product: CK804 AC'97 Audio Controller vendor: nVidia Corporation physical id: d bus info: pci at 0000:00:0d.0 version: a2 width: 32 bits clock: 66MHz capabilities: pm bus_master cap_list configuration: latency=0 maxlatency=5 mingnt=2 resources: ioport:d400(size=256) ioport:d000(size=256) memory:ff6fd000-ff6fdfff snd_intel8x0 36237 3 snd_ac97_codec 65425 1 snd_intel8x0 snd_pcm_oss 52857 0 snd_mixer_oss 22081 2 snd_pcm_oss snd_pcm 92613 3 snd_intel8x0,snd_pcm_oss snd_timer 28357 1 snd_pcm snd_page_alloc 14541 2 snd_intel8x0,snd_pcm gameport 8641 1 snd_intel8x0 snd_mpu401_uart 11457 1 snd_intel8x0 snd_rawmidi 28133 1 snd_mpu401_uart snd_seq_device 12105 1 snd_rawmidi snd 58149 12 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device soundcore 13345 2 snd
On Mon, 2009-04-27 at 08:05 -0700, Bart Schaefer wrote:> As I mentioned on a thread about flash-plugin a few days ago, I'm > having trouble with my sound device getting "stuck" and thereby > causing problems for anything that accesses it, like video playback. > > Rebooting the machine "fixes" it for a while, but it's unpredictable > for how long -- sometimes months go by without it recurring, sometimes > it happens every couple of days. Right now I'm in one of the latter > phases.------------- You do not have to reboot the machine every time it happens! Use the System Monitor Gnome Applet to kill what ever is using it. Further more this really seems like a Bug in the way Applications handle killing processes. Why? I have a Client this happens to often. Exactly the way you describe. One idea why it affects my clients machine is it is running 4.7 and is dog dead slow. Wait 5 minutes and the processes finally exits. In theory it should exit when the app is closed. johnStanley