Sound off and audio/video apps blocked

RaisedFist · 2008-03-01 20:52:46

For a few days I have a very weird problem. After a few hours of using the computer (4-5, I leave it on when I go to work so I can stream my music), everything related to sound is dead.
For example, mpd dies without any errors written in the error log. If I try to restart it doesn't work. It just hangs with no errors. Also, if I try to open a flash video in any browser, the browser just hangs on with no errors. I even tried to open amarok from the shell and just hangs with no errors.
The problem disappears after I reboot the computer, so I think it's something related to the sound driver. I have a Creative Audigy SE card.

I'd like to be more explicit, but I don't know what and where to look for logs. Maybe next time it happens I'll put here some logs if someone gave me a hint.

RaisedFist · 2008-03-02 09:36:34

I found something weird in my /var/log/messages.log

Mar  2 11:35:23 eff possible SYN flooding on port 9889. Sending cookies

9889 is the port I'm using mpd on. What could be the cause for this?

Dheart · 2008-03-02 10:06:13

I have the exact same problem since 4-5 days after I stoped using moc player and switched to mpd/sonata. Sound is playing fine until at some point it just dies off: mpd dies (I have to kill mpd manually with kill pid and then restart it in order to fix the problem, or if I let mpd dead for ten minutes or so it fixes itself) gmplayer videos freeze at some point (when the sound dies) and I have to pause/unpause in order to move further in the movie (though pause/unpause only moves the video several seconds ahead and again freezes... I have to restart gmplayer in order to fix it) Sound in games I play with wine periodicaly freezes (When I run the game sound is fine, then it stops for 4 - 5 minutes, then again it starts for a while and then dies out and again after eventually completely dieing out or running fine...) At first I thought it was software issue, but then just to test it I booted into WinXP and had the exact same problems: Sound dieing out every now and then... So I think it is hardware related problem so I'm going to buy a new sound card next week (my current sound card is integrated AC/97)
Also I read someone at ubuntu forums had similar problems and fixed it by running apt-get purge (Equivalent of pacman -Rd) to all alsa tools and libs, then installing them again and rebooting (that, however didn't fix my problem)

Last night my sound was so crippled that I couldn't even listen to one song without two deaths of the sound... however just two hours later with no apparent reason the problems stoped... I'm puzzle... I'll post again when I get my new Audio Card to see if there is an improvement.

olleg · 2008-03-02 11:25:32

I am experiencing similar problems for several days now. I also use mpd. Sometimes restarting alsa and mpd helps, but sometimes it doesn't. After rebooting everything works fine.

$ lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)

TheBodziO · 2008-03-15 11:10:22

Don't seem like a hardware failure to me (at least little probable). I'm experiencing the same problem.

As long as I can remember I've got this one at one point in the past too, but back then I haven't got much time to investigate and after some updates all have sorted out itself.

I also don't think it's a client problem since the hang happens with both mpc and sonata on my setup. Also mdp (runned as --verbose --no-daemon --stdout) says:

interface 0: process command "status"
interface 0: command returned 0
interface 0: process command "currentsong"
interface 0: command returned 0
interface 0: process command "play"

Bang! Nothing more at this point: no actions calls, no events, no more infos. Although after a couple of minutes or after killing mpd there's added:

interface 0: command returned 0
interface 1: opened from 192.168.0.3
interface 0: process command "status"
playlist: play 34:"Misc/Fall Out Boy - Dead On Arrival.mp3"
closeAllListenSockets called
closing listen socket 0
closing listen socket 1
interface 0: closed
interface 1: closed
took 0.010000 to init player
copyMpdTagToOB: !acceptMetadata || !tag
decoder PID: 8621
copyMpdTagToOB: !acceptMetadata || !tag
interface 0: command returned 0
interface 0: problems writing
Max Connections Reached!
interface 1: closed
interface 1: opened from 192.168.0.3
Max Connections Reached!
interface 1: closed
main process got SIGINT or SIGTERM, exiting
interface 0: closed
closeAllListenSockets called
closing listen socket 0
closing listen socket 1
closeMp3Directory took 0.010000 seconds
cleaning up pid file

Bizarre? Yes! . Couriuos? Even more so!

Also I've found this bug on mpd's mantis: http://www.musicpd.org/mantis/view.php?id=1479. So it's cross-distro and cross-hardware since I've got:

00:06.0 Multimedia audio controller: nVidia Corporation nForce2 AC97 Audio Controler (MCP) (rev a1)

and experienced it previously on some via and cmi. I hope someone will come with solution soon. I mean—it's getting bad on my listening addiction .

Oh! I forgot to mention that I've tried both specifying "device" and leaving it out in "audio_output".

danielsoft · 2008-03-15 15:04:29

RaisedFist wrote:

I found something weird in my /var/log/messages.log
Mar  2 11:35:23 eff possible SYN flooding on port 9889. Sending cookies
9889 is the port I'm using mpd on. What could be the cause for this?

that's interesting: my idea is that the mpd port is open to the entire Internet, so there's a possibility that something (a worm, a hacker...) tries to access it in a malicious way that kills the sound. It's just an idea... and I am not a firewall/iptables expert, so I don't know what should be done to protect the port better...

TheBodziO · 2008-03-25 17:52:54

Do you still experience problems with mpd? At my side after recent kernel updates mpd again pauses, stops and plays as it should. I haven't checked softmixing since I don't use it (one sound source is enough ) but with a little bit of luck maybe your problems were sorted out too with the same updates. At least I hope so.

olleg · 2008-03-27 16:59:05

Well, actually last week everything is just fine

TheBodziO · 2008-04-02 22:25:45

That's the upgrades for 'ya

Arch Linux

#1 2008-03-01 20:52:46

Sound off and audio/video apps blocked

#2 2008-03-02 09:36:34

Re: Sound off and audio/video apps blocked

#3 2008-03-02 10:06:13

Re: Sound off and audio/video apps blocked

#4 2008-03-02 11:25:32

Re: Sound off and audio/video apps blocked

#5 2008-03-15 11:10:22

Re: Sound off and audio/video apps blocked

#6 2008-03-15 15:04:29

Re: Sound off and audio/video apps blocked

#7 2008-03-25 17:52:54

Re: Sound off and audio/video apps blocked

#8 2008-03-27 16:59:05

Re: Sound off and audio/video apps blocked

#9 2008-04-02 22:25:45

Re: Sound off and audio/video apps blocked

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