No /dev/dsp, some programs failed to play sound

I'm using chakra-2010.09 and there is no /dev/dsp after a default installation. Programs using phonon as backend (KDE's login music and the default music player, Bangarang) can play sound without problems. But others like vlc, flashplugin and wine cannot. Vlc just report errors about no /dev/dsp. How can this be fixed?
Then I tried #modprobe snd_pcm_oss snd_mixer_oss snd_seq_oss, the module created /dev/dsp1. then I maked a soft link to /dev/dsp but vlc said "cannot open device /dev/dsp".
I also tried using osspd and vlc can play sound now, but flashplugin and wine still have problems.
Here are some of my system information:
[admin@LenovoPC ~]$ cat /proc/asound/cards
0 [Generic ]: HDA-Intel - HD-Audio Generic
HD-Audio Generic at 0x90244000 irq 42
1 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0x90240000 irq 16
[admin@LenovoPC ~]$ lsmod | grep snd
snd_hda_codec_conexant 39073 1
snd_hda_codec_hdmi 19967 1
snd_hda_intel 19020 6
snd_hda_codec 67097 3 snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel
snd_hwdep 4812 1 snd_hda_codec
snd_pcm 59717 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_timer 15279 2 snd_pcm
snd 43259 17 snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore 4993 1 snd
snd_page_alloc 5805 2 snd_hda_intel,snd_pcm

RichSelian,
It is our policy that we only support Arch Linux. Please take this to http://chakra-project.org/bbs/

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Last edited by eldalion (2010-02-21 17:28:53)

eldalion wrote:I tried seting up dmix "the old way" using /etc/asound.conf (hey, you never know) but no luck either.
Not necessary. ALSA supports dmix by default. Don't edit that file.
Let me explain what's happening. mpd has a stupid default config, of using OSS rather than ALSA. And OSS screws up dmix.
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music_directory "~/gnutella/downloads/Cool"
playlist_directory "~/.mpd/playlists"
db_file "~/.mpd/mpd.db"
log_file "~/.mpd/mpd.log"
error_file "~/.mpd/mpd.error"
audio_output {
type "alsa"
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options "dev=dmixer"
device "plug:dmix"
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fuser -v /dev/snd/* /dev/dsp*
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Step 1: File a bug with your distro, for the app (mpd) to default to ALSA instead of OSS. Defaulting to OSS these days is ridiculous - ALSA is the standard sound system in Linux, and that's not gonna change.
Please do this. I'm not doing this, because I don't use Arch or mpd any more.
Step 2: File a bug upstream, to default to ALSA instead of OSS.
Edit: I notice that Ubuntu has the right idea:
* Update mpd.conf from upstream
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Last edited by brebs (2010-02-23 07:56:16)

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UnloadBlacklistedModules yes
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# UpInterfaces auto
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Last edited by adrian.ratnapala (2009-08-01 16:53:06)

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I can no longer hear any sound from my speakers/headphones. This happened suddenly yesterday without any hardware changes or noticeable software updates.
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-- In the sound control panel, under Playback > Speakers/Headphones > Properties > Advanced:
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I've tried
* rebooting
* uninstalling and reinstalling the driver for the sound card
* "disable all enhancements" in the sound control panel
(http://social.msdn.microsoft.com/forums/en-US/windowspro-audiodevelopment/thread/b09e43ba-3ffa-4a45-9593-8eee686f124a/)
* looking in the registry for some registry key (not found)
(http://www.consumingexperience.com/2009/04/failed-to-play-test-tone-no-sound-on.html)
Computer details
Dell XPS M1530
Vista Ultimate x64 SP1 with current updates
SigmaTel driver version 6.10.0.5866
**Update**
I followed the following steps:
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**Another update**
Still can't read the EVM. logparser 2.2 can't parse it.
Found this thread which interested me but isn't applicable to x64 (I think):
http://social.msdn.microsoft.com/Forums/en-US/mediafoundationdevelopment/thread/94cdc662-e974-43de-8feb-6eb156924347
**YAU**
Dell confirms it's an OS issue after troubleshooting with me for a couple of hours (wow)
Is there a way to look at this EVM file _without_ installing the Windows Driver Kit??

Hi,
Thanks for posting in Microsoft TechNet Windows Vista Forum.
Upon your description, I see that you have done a lot of research and tests. Unfortunately, none of these troubleshooting works.
Based on my experience, this issue related to "failed to play test tone" can be related to several reasons. It also includes hardware defect. I am confusing why Dell confirms that the issue is related to Operating System. Could you let me know what operation Dell had troubleshot with you?
Meanwhile, here I just provide more troubleshooting except what you performed. If it doesn't work, I may also need to recommend that you contact Dell for support.
1. Microsoft has released a Hotfix to troubleshoot related to "Failed to play test tone".
http://support.microsoft.com/kb/930883
2. Make sure that these services are started.
Windows Audio
Multimedia Class Scheduler
Remote Procedure Call
Windows Audio Endpoint Builder
3. I noticed that this issue occurred not long ago, I may need to suggest that you perform a System Restore to the previous restore point when the computer without any problem.
System Restore
==============
1)     Please click on Start and choose All Programs, Accessories, System Tools, and then Windows Backup.
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3)     Choose Basic Restore.
4)     Follow the wizard and click Next.
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6)     We can also browse and choose certain files and folders to restore. Then, click Next.
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Meanwhile, as I know, I'm afraid that there is no other way to look at EVM file except Windows Driver Kit. Maybe there are some third-party software that out of my mind can look at EVM files, you may need to perform more research on Internet.
Hope this helps. Thanks.

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My main problem is that I cannot get any audio to play from my PC to my HDMI HDTV.
When I plug my HDMI cable into my PC and TV, the TV is recognized in Playback Devices, but nothing can play to it.
When I try to test the TV in playback devices, I get a "Failed to play test tone" error.
Additionally, I'd like to mention some other odd behavior that I think may be a part of the main problem.
In Playback Devices, I cannot change anything. I can't disable or enable a device, I can't set default playback or communication devices, and I can't save changes inside device properties. Every time I try to change something, like the default playback device, nothing happens or the changes are immediately reversed.
The Question:
How can I get audio to play over HDMI on my PC (It's not a problem with the TV, my other HP machines play audio over HDMI to it just fine.)?
What I've Tried:
I have tried:
Changing the default playback devices, which I'm unable to do
Running the Windows 7 Audio Playback troubleshooters from within a clean boot state
Uninstalling and reinstalling the Intel(R) Display Audio driver
Uninstalling and reinstalling the IDT High Definition Audio CODEC
Uninstalling the IDT PC Audio program from Programs and Features
Disabling the IDT High Definition Audio CODEC
Nothing has worked.
The drivers I have are the latest issued by HP
How can I get this working? I would really appreciate some assistance.
I'm at the point where I'm ready to try pretty technically-involved suggestions, so, please feel free to post those.
Your expertise is greatly appreciated.
Thanks.

Hi @dskrobow,
Welcome to the HP Forums!
It is a terrific place to find answers and suggestions!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
I understand that you are connecting a HDTV but you do not have any audio.
Here are two links that may help.
HP Notebook PCs - Using Two or More Video Displays in Windows 7
HP Notebook PCs - Troubleshooting HDMI Display and Sound Issues.
Have you ran the HP Support Assistant ?
Have you ran the Windows troubleshooter?
If you appreciate my responding please click the kudos button below to say thanks.
Good Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Audio doesn't work on some programs after boot (sometimes)

Check new message dated 30.06.2014
Hi,
I'm having a weird problem. After booting my computer, the audio sometimes works perfectly, sometimes not at all, and sometimes it works on some programs but not on others. For example last night audio played without problem on Chromium, VLC and Amarok. Today after boot it played on VLC, but not Amarok (didn't realise to check Chromium), and now after reboot it plays on VLC and Amarok but not on Chromium.
Chromium means YouTube (HTML5) and others (Flash).
My DE is KDE (was xfce4 with mostly same audio trouble). Soundcard is USB DAC (SMSL Fort) and on KDE's Audio and Video setting I have it listed at the top and the "test" button works (i.e. it plays a sound).
$ lsmod | grep '^snd'
snd_hda_codec_realtek 54547 1
snd_usb_audio 131640 2
snd_hda_codec_generic 56366 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 40208 1
snd_usbmidi_lib 21428 1 snd_usb_audio
snd_rawmidi 20278 1 snd_usbmidi_lib
snd_seq_device 5244 1 snd_rawmidi
snd_hda_intel 22270 4
snd_hda_controller 22911 1 snd_hda_intel
snd_hda_codec 104665 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep 6652 2 snd_usb_audio,snd_hda_codec
snd_pcm 83207 5 snd_usb_audio,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer 19294 1 snd_pcm
snd 60780 24 snd_hda_codec_realtek,snd_usb_audio,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_rawmidi,snd_hda_codec_generic,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device
$ ls -l /dev/snd/
total 0
drwxr-xr-x 2 root root 60 Jun 20 15:48 by-id
drwxr-xr-x 2 root root 100 Jun 20 15:48 by-path
crw-rw----+ 1 root audio 116, 2 Jun 20 15:48 controlC0
crw-rw----+ 1 root audio 116, 8 Jun 20 15:48 controlC1
crw-rw----+ 1 root audio 116, 6 Jun 20 15:48 controlC2
crw-rw----+ 1 root audio 116, 5 Jun 20 15:48 hwC0D0
crw-rw----+ 1 root audio 116, 13 Jun 20 15:48 hwC1D0
crw-rw----+ 1 root audio 116, 3 Jun 20 15:48 pcmC0D3p
crw-rw----+ 1 root audio 116, 4 Jun 20 15:48 pcmC0D7p
crw-rw----+ 1 root audio 116, 10 Jun 20 15:48 pcmC1D0c
crw-rw----+ 1 root audio 116, 9 Jun 20 15:48 pcmC1D0p
crw-rw----+ 1 root audio 116, 11 Jun 20 15:48 pcmC1D1p
crw-rw----+ 1 root audio 116, 12 Jun 20 15:48 pcmC1D2c
crw-rw----+ 1 root audio 116, 7 Jun 20 15:57 pcmC2D0p
crw-rw----+ 1 root audio 116, 1 Jun 20 15:48 seq
crw-rw----+ 1 root audio 116, 33 Jun 20 15:48 timer
Many thanks.
Last edited by NGCjmo (2014-06-30 16:55:39)

What is the ouput of cat /proc/asound/cards, aplay -l?
For an example:
[firekage@arch_desktop ~]$ cat /proc/asound/cards
0 [XFi ]: SB-XFi - Creative X-Fi
Creative X-Fi 20K1 SB073x
1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xf6080000 irq 17
2 [U0x46d0x825 ]: USB-Audio - USB Device 0x46d:0x825
USB Device 0x46d:0x825 at usb-0000:00:14.0-7, high speed
[firekage@arch_desktop ~]$
[firekage@arch_desktop ~] aplay -l
card 0: XFi [Creative X-Fi], device 4: ctxfi [IEC958 Non-audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
[firekage@arch_desktop ~]$
I think that you have multiple sound devices and their boot order changes after each reboot.
Last edited by firekage (2014-06-20 13:13:05)

Quake 3 /dev/dsp error

I've done some digging trying to search out a solution to this problem, but I am coming up empty.
Fresh install of Quake 3 Arena. On startup, the console reports:
------- sound initialization -------
/dev/dsp: Device or resource busy
Could not open /dev/dsp
So I have no sound.
The sound device is a C-Media PCI CMI8738-MC6
Kernel = kernel26-2.6.20.4-1
I've got system sounds aplenty, and sounds playing DVDs and such. My user is a member of audio. Let me output more info than is probably useful.
lsmod | grep snd
snd_seq_oss 29184 0
snd_seq_midi_event 6528 1 snd_seq_oss
snd_seq 46672 4 snd_seq_oss,snd_seq_midi_event
snd_pcm_oss 39072 0
snd_mixer_oss 14464 1 snd_pcm_oss
snd_cmipci 30368 3
gameport 11784 1 snd_cmipci
snd_pcm 68484 3 snd_pcm_oss,snd_cmipci
snd_page_alloc 7816 1 snd_pcm
snd_opl3_lib 8576 1 snd_cmipci
snd_timer 18820 4 snd_seq,snd_pcm,snd_opl3_lib
snd_hwdep 7044 1 snd_opl3_lib
snd_mpu401_uart 7040 1 snd_cmipci
snd_rawmidi 19104 1 snd_mpu401_uart
snd_seq_device 6796 4 snd_seq_oss,snd_seq,snd_opl3_lib,snd_rawmidi
snd 43492 16 snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_cmipci,snd_pcm,snd_opl3_lib,snd_timer,snd_hwdep,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore 6496 1 snd
ls -la /dev/snd
total 0
drwxr-xr-x 2 root root 0 2007-03-31 13:15 .
drwxr-xr-x 17 root root 0 2007-03-31 19:15 ..
crw-rw---- 1 root audio 116, 0 2007-03-31 13:15 controlC0
crw-rw---- 1 root audio 116, 4 2007-03-31 13:15 hwC0D0
crw-rw---- 1 root audio 116, 24 2007-03-31 13:15 pcmC0D0c
crw-rw---- 1 root audio 116, 16 2007-03-31 13:15 pcmC0D0p
crw-rw---- 1 root audio 116, 17 2007-03-31 13:15 pcmC0D1p
crw-rw---- 1 root audio 116, 26 2007-03-31 13:15 pcmC0D2c
crw-rw---- 1 root audio 116, 18 2007-03-31 13:15 pcmC0D2p
crw-rw---- 1 root audio 116, 1 2007-03-31 13:15 seq
crw-rw---- 1 root audio 116, 33 2007-03-31 13:15 timer
ls -la /dev
lrwxrwxrwx 1 root root 9 2007-03-31 13:15 dsp -> sound/dsp
Any ideas?
Last edited by Rumor (2007-03-31 20:22:55)

WhiteMagic wrote:
If I remember correctly this is a rather common problem with quake. I used the following commands to resolve the problem:
echo "quake3.x86 0 0 direct" > /proc/asound/card0/pcm0p/oss
echo "quake3.x86 0 0 disable" > /proc/asound/card0/pcm0c/oss
Not the most elegant solution I think but it worked for me.
YESS!!!
(ioquake has some issues with PB...)

No /dev/dsp, some programs failed to play sound

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