5.1 sound problems (ALSA+SB Live digital out)

I'm trying to get 5.1 audio in an old machine, using xfce desktop (no much graphical tools included) and a SoundBlaster Live soundcard
So far, digital spdif output is working, but the problem is that only front speakers work, not rear nor center/lfe
in fact sometimes front left does not work :?
I'm testing it with
speaker-test -c 6 -D surround51 -twav
I think alsamixer controls are ok
Any idea?
Last edited by fiz (2010-01-29 21:42:31)

n0dix wrote:You have to configure your .asoundrc file in your $HOME. Look in google, there are many information about it.
I've tried many different configurations but none of them worked
I also think that the " -D surround51" switch will use the surround51 out no matter what is in the .asoundrc file
I thnk tomorrow I'm testing with a similar soundcard (same model) to see if the soundcard itself is not working properly

Similar Messages

Sound Blaster X-Fi: Enabling digital out under Windows Vi

Hi,
I recently upgraded Windows XP machine to Windows Vista Ultimate. On the XP install, I had my Sound Blaster X-Fi Xtreme Music (SB0460) plugged into an external AV receiver via the digital out jack on the back of the card. This all worked fine.
Following the Vista upgrade, the receiver seems to be no longer geting a signal from Windows. None of the cabling was touched so I'm assuming there must be some setting in Vista to enable the digital out, but not for lack of trying, I can't seem to find it.
I've installed the latest drivers from the site and the sound card appears to be working correctly. The sound manager in the Control Panel shows three devices (Speakers, SPDIF Out, and Headphones). I've tried it with Speakers set to default and also with SPDIF set to default, but no joy. On Speakers, I can get sound output by plugging in headphones, but on SPDIF, nothing.
I've also looked through Audio Consol's settings and there doesn't appear to be any "Decoder" option that is mentioned on some early posts I found on other sites relating to this problem.
Any suggestions on how to enable digital out under Vista would be most appreciated.
Thanks in advance,
Ben

vennacher wrote:
In the control panel sound applet select "speakers" and then "properties". On one the tabs there is a check box for "digital I/O". Make sure this is checked as it enables digital out from the flexijack.
Yeah, what he said.

Sound - My built speakers do not show in the output section in sound system preferences area only digital out hence unless I connect external speakers I have no sound - can anyone assist?

on my IMac the internal speakers have ceased working - in the sound preferences area only digital out sound is there no internal speakers to choose so unless I connect external speakers I have no sound

Hey Jack (woofman jack)
Sounds like the micro switch inside the output jack that switches the audio from internal to external is stuck on external. Try plugging a set of buds, headphones or digital Toslink adapter in and out a few times to see if it will unstick the micro switch. You also might try jiggling a tooth pick around inside the audio output jack to see if that unsticks it? If not then you'll need to make an appointment at your Local Apple Store or Apple Service Provider and have the jack serviced.
Dennis

No sound only thing available is digital out

I have tryed reading different things in regards to having no sound on the i-mac and still on sound. Have rebooted.
Only thing available is Digital Out.
show volume in menu bar not working
mute button greyed out
Not much point in having i-tunes cant listen to them any way
Anyone no how to fix

The switch between analog and digital output takes place when you insert an optical connector in the output socket: there is a small mechanical switch which detects the type of plug. If this has jammed you will get stuck in optical output.
I asume you've tried simply rebooting - that's always the first step with minor failures. Try plugging a pair of headphones into the socket and see if they work. If so it's possible that the internal speakers will work when you unplug it. If not, poking around with a toothpick might work but it might equally well make matters worse or cause permanent damage so I don't recommend it - do it at your own risk.
Beyond that you will need to get it looked at by a service engineer.

Sound problems, ALSA can't find sound card at boot

Sometimes, my sound randomly drops out, and I can't get it back until I reboot. Even when I reboot, 1/20 times, it will not be back.
When I watch stuff on youtube, sometimes the sound just drops out. Nothing gets muted. My audio player can't produce sound.
If I do
lsmod | grep snd
I'll see the some output.
When I reboot and try to play music from Quodlibet, I'll get an error like this:
Output Error
GStreamer output pipeline could not be initialized. The pipeline might be invalid, or the device may be in use. Check the player preferences.
"lsmod | grep snd" will have NO output and when I try to start alsamixer:
[xz@gestalt ~]$ alsamixer
cannot open mixer: No such file or directory
I can't figure out what's going on, and googling has just led me to various not-completely-related posts on this board... what could be the problem?
EDIT: A few more things to note--
I have alsa in my daemons list in rc.conf
I'm part of the "audio" groups.
soundcore is not blacklisted
Last edited by brokengestalt (2012-08-29 09:10:59)

If I try
[xz@gestalt ~]$ lspci -nn
00:00.0 RAM memory [0500]: NVIDIA Corporation MCP67 Memory Controller [10de:0547] (rev a2)
00:01.0 ISA bridge [0601]: NVIDIA Corporation MCP67 ISA Bridge [10de:0548] (rev a2)
00:01.1 SMBus [0c05]: NVIDIA Corporation MCP67 SMBus [10de:0542] (rev a2)
00:01.2 RAM memory [0500]: NVIDIA Corporation MCP67 Memory Controller [10de:0541] (rev a2)
00:01.3 Co-processor [0b40]: NVIDIA Corporation MCP67 Co-processor [10de:0543] (rev a2)
00:02.0 USB controller [0c03]: NVIDIA Corporation MCP67 OHCI USB 1.1 Controller [10de:055e] (rev a2)
00:02.1 USB controller [0c03]: NVIDIA Corporation MCP67 EHCI USB 2.0 Controller [10de:055f] (rev a2)
00:04.0 USB controller [0c03]: NVIDIA Corporation MCP67 OHCI USB 1.1 Controller [10de:055e] (rev a2)
00:04.1 USB controller [0c03]: NVIDIA Corporation MCP67 EHCI USB 2.0 Controller [10de:055f] (rev a2)
00:06.0 IDE interface [0101]: NVIDIA Corporation MCP67 IDE Controller [10de:0560] (rev a1)
00:08.0 PCI bridge [0604]: NVIDIA Corporation MCP67 PCI Bridge [10de:0561] (rev a2)
00:09.0 IDE interface [0101]: NVIDIA Corporation MCP67 AHCI Controller [10de:0550] (rev a2)
00:0a.0 Ethernet controller [0200]: NVIDIA Corporation MCP67 Ethernet [10de:054c] (rev a2)
00:0c.0 PCI bridge [0604]: NVIDIA Corporation MCP67 PCI Express Bridge [10de:0563] (rev a2)
00:0d.0 PCI bridge [0604]: NVIDIA Corporation MCP67 PCI Express Bridge [10de:0563] (rev a2)
00:12.0 VGA compatible controller [0300]: NVIDIA Corporation C67 [GeForce 7150M / nForce 630M] [10de:0531] (rev a2)
00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration [1022:1100]
00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map [1022:1101]
00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller [1022:1102]
00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control [1022:1103]
02:05.0 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C832 IEEE 1394 Controller [1180:0832] (rev 05)
02:05.1 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter [1180:0822] (rev 22)
02:05.2 System peripheral [0880]: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter [1180:0592] (rev 12)
02:05.3 System peripheral [0880]: Ricoh Co Ltd xD-Picture Card Controller [1180:0852] (rev 12)
03:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR242x / AR542x Wireless Network Adapter (PCI-Express) [168c:001c] (rev 01)
Audio devices aren't even mentioned. I noticed when I tried to boot up that I get an error like "sound card not detected." Why would arch suddenly not be able to find a soundcard? It looks like it almost has nothing to do with my ALSA configuration, and has more to do with my sound card not being found at all in the first place....

TOSLINK/SPDIF optical digital out problem

Dunno what the problem is here. I've used a mini-Toslink adapter and cable to successfully send a digital signal to my amplifier with my Macbook Pro and a previous iMac G5 iSight, but recently failed to do the same with my new 24" iMac. The red light and the Sound preferences suggest that the digital output is working, but no sound comes out. The same setup works fine with my MBP's digital output, so I can't explain the problem on the iMac.
Does anyone know of any other ways to test or verify that the digital output is working? Perhaps there is another way to turn the digital output on/off? I'm hoping this is a software issue ...
Thanks.

I'm having a similar problem / issue with the digital outs...
I'm sending a digital signal via a mini-TOSlink adaptor to my MOTU 828mkII ADAT IN... first problem is that unless I set the MOTU's clock to ADAT IN... (and not use it's only internal clock) then I get digital noise when I playback anything on my iMac... since there is no way to set the iMac clock in Audio Midi Setup to External... it's greyed out.
The larger issue is that playback works fine as long as the Audio driver is being used... i.e. iTunes playiing something back. When I stop any audio playback... about 30 seconds later, the MOTU sync light starts flashing as it's NOT receiving a sync signal from the iMac anylonger. Then if I start playback again it takes about 2-3 seconds for the playback to sound. Totally unacceptable...
I noticed a few things... first off... I also send a signal from my MOTU BACK to my iMac through the iMac's digital IN. With the Digital Output on the iMac, plugging in the TOSLINK cable will automatically change the OUTPUT in Audio Midi Setup to Digital Out... when plugging in the 2nd cable to Digital In, Audio Midi Setup DOES NOT change to Digital In unless you start audio playback, and that's where the 2-3 seconds lag comes in. When you actually hear the playback, if Audio Midi Setup is open... you can see the INPUT switch from Line In to Digital In... and if you stop playback, you can see the Digital In go BACK to Line In about 30 secs later... which should NOT be happening... although technically the Digital in should have NO effect on the Digital Out here anyway... and in truth it doesn't... taking the Digital In out of the equation totally - I still see the same issues... just find it interesting that this is happening.
Anyhow, I have no advice to help you out rwcoch... I wish I did... this is ridiculous! I'm going to search a bit more and see if anyone else has anything remotely similar...
Can anyone else try to replicate my issue? Try sending a digital signal to another sound card... ?
Thanks

Intermittent sound problems on MacBook Pro.

I have for the last few months had this intemittent sound problem. The speaker greys out and the sound 'jumps' between speaker and internal sound. The little red light inside the headphone port comes on. This could last for a few minutes and then everything is fine again. It happens when I play DVD's as well. The sound goes and the DVD practically stops playing or the picture is slowed down and jerky. Usually after ejecting the DVD and inserting it again it sorts the problem out. It used to not happen very often but for the last two days it has happened at least 5 times. It happened during a presentation once and I need this to work. Any advice please. I am worried it could be a hardware issue.

I have for the last few months had this intemittent sound problem. The speaker greys out and the sound 'jumps' between speaker and internal sound. The little red light inside the headphone port comes on. This could last for a few minutes and then everything is fine again. It happens when I play DVD's as well. The sound goes and the DVD practically stops playing or the picture is slowed down and jerky. Usually after ejecting the DVD and inserting it again it sorts the problem out. It used to not happen very often but for the last two days it has happened at least 5 times. It happened during a presentation once and I need this to work. Any advice please. I am worried it could be a hardware issue.

Sound Recording with digital out. SB 5.1 Live, + and Inspire GD

Have these on my Dell?+?also have a standard SB? PCI 28 second sound card and (nearly) Everything works. I even get DTS and Dolby lights when I play dvd's. Not from ac3 tracks of?Media Player obvioulsy (tho my buffalo link theater media streamer?and reci'ver? seem to manage but hey ho)?What i want is the ability to record off the digital out stream?without having to disable it, without?changing settings (much) and without switching to the?the second sound card ect ect. ) Could i link both cards so i record off one, whilst listening through the other one either thriough software or a cable connection?(Atomix MP3?allow you to access both cards at the same time,? no other software i have come across does.),?2)?Is there any recording software that will take a feed off the digital out?3) Is there anything else i can do in creative sound recorder / polderbits or whatever to resolve this?nb?I know that i can switch to analogue out to record, the problem then is i can't hear anything through the gd 580 unless i hook up the analogue inputs +?I only get 2 speaker output, and thats if i've rembered to change every setting correctly. Many thanks?Ian

For the first time I was able to get Dolby Digital sound through to my receiver by playing the AC3-test from creative.
And in here I also saw the passthrough settings as well.
But still not from WinDVD og Mediaplayer.
Could there be alot of codecs etc. which works against each other? -Is there a way to uninstall all codecs, mediaplayer, creative-things etc. without doing a whole windows reinstall?
Yes I have connected from the 3,5 jack to RCA on the receiver.
Message Edited by mbm23 on 03-7-2005 07:54 AM

Sound in ALSA but not in WINE

Hello,
I have some trouble activating sound in WINE and hope for your help
I run Arch on a PC with Asus P8H77-M mainboard with onboard sound. Here's some details on the sound device:
lspci -knn
00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller [8086:1e20] (rev 04)
Subsystem: ASUSTeK Computer Inc. P8H77-I Motherboard [1043:8415]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 2: VT1708S Alt Analog [VT1708S Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: VT1708S Digital [VT1708S Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
sysdefault:CARD=PCH
HDA Intel PCH, VT1708S Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, VT1708S Analog
Front speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, VT1708S Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, VT1708S Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, VT1708S Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, VT1708S Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, VT1708S Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=PCH,DEV=0
HDA Intel PCH, VT1708S Digital
HDMI Audio Output
hdmi:CARD=PCH,DEV=1
HDA Intel PCH, HDMI 0
HDMI Audio Output
I added the the HDMI output as standard output to /etc/asound.conf and also added HDMI_TV for testing purposes:
pcm.!default {
type hw
card 0
device 7
ctl.!default {
type hw
card 0
device 7
pcm.HDMI_TV {
type hw
card 0
device 7
ctl.HDMI_TV {
type hw
card 0
device 7
When it test the setup with speaker-test -c 2 or speaker-test -D HDMI_TV -c 2 I get some nice pink noise on my speakers
I have a number of Output devices to select from in winecfg, but with none of them I can get any sound out of my speakers:
(System standard)
Out: default
Out: HDA Intel PCH - VT1708S Analog
Out: HDA Intel PCH - VT1708S Digital
Out: HDA Intel PCH - HDMI 0
When I fist started winecfg and selected the Audio tab, I got some pulse related error message (something like "err:pulse:pulse_CallbackContext Connection refused", I don't remember exactly). I have pulseaudio installed (as a dependency of chromium) but it's not active, so I turned to ALSA with winetricks sound=alsa.
Now I don't get the pulse error message anymore, but there is still no sound and when I hit the Test Sound button the first time after starting winecfg, I get the error message "err:ole:CoInitializeEx Attempt to change threading model of this apartment from multi-threaded to apartment threaded". I have no idea whether this is directly related to my sound problem.
I tried adding HDMI_TV in the registry key ALSAOutputDevices. Now I have one more device to select from, but still no sound
I am running out of ideas what to try next, so if anybody has a hint, please tell me (y)
If you need more information on my hardware or software, please tell me!
As I am somewhat of a newbie with Arch and WINE, you might also have to tell me where to get that information
Thanks & best regards
Lasse
Btw: I installed XBMC and sound output via HDMI works perfectly

Hi, I'm one of Wine's main audio maintainers.
supermariolinux is right that you'll need the 32-bit audio packages. If you're not using PulseAudio, you should only need lib32-alsa-lib. If you are using Pulse, you will also need lib32-alsa-plugins and lib32-libpulse. You can do "pacman -Qi wine" to get a list of optional packages that you may be missing.
You said that you got an error saying, "err:pulse:pulse_CallbackContext Connection refused". This doesn't seem possible if you're using the official Arch Wine package, as Arch doesn't supply the unofficial Pulse audio backend. Are you building Wine yourself? Do you get an errors upon running configure?
The CoInitializeEx message is harmless.
Finally, you can get a debug log which may give you more information about what's happening. There are more instructions for that here: http://wiki.winehq.org/Sound under "What to include when filing a bug." You may find some useful information near lines containing "AudioClient_Initialize". If you upload a log someplace, I can take a look as well.

C-Media Sound Problem

Hi All:
I've been having a recurring problem ever since I've had my board:
Whether I run at stock speed or oc, my sound turns off intermittently. To turn it back on I have to go into the C-Media application and switch to analog sound and then back to digital. I'm using the S-brackets spdif optical output, the driver version I'm using is C-Media's latest - 5.12.01.0039.3(36), (and it also happens with the 0031 driver version that's the latest that MSI shows for the board in Live Update), and I always keep my agp/pci bus locked at 66mhz.
Any suggestions?
Anyone?
Thanks
BigAL

I wish I could help but I don't have a clue. Sounds to me like you have everything setup correctly =[
Sounds like a bug to me? Might want to try emailing someone about it?
Sorry I can't be of more service!
P.S. I've seen the sound chips on these boards do wierd things. On my friends computer the sound would not raise any higher after the 2nd notch (out of 8 notches total). This means using regular run of the mill speakers that you don't plug into the wall, you can barely hear the sound. The only way to amplify the sound was to pipe the sound out to a stereo system with an amplifier =P Lucky for me, my friend/customer wanted to do just that so we circumvented that problem. I know this doesn't help you but it may comfort you knowing you're not the only one having troubles with the sound chip.

No sound in alsa

I have no sound using alsa.
cat /procs/asound/cards outputs:
0 [HDMI ]: HDA-Intel - HDA Intel HDMI
HDA Intel HDMI at 0xf7c14000 irq 34
1 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf7c10000 irq 35
The volume in alsamixer is set '00' and in green color. Volume level is set to 100.
Last edited by toni (2014-11-22 17:09:26)

MoonSwan wrote:
Damnit somehow my config file I posted failed to show up! Here it is (again) and it should show you the syntax you're trying to duplicate by putting each "soundcard" on a separate line. See this code for an example configuration:
#/etc/modprobe.d/alsa-base.conf
options snd slots=snd_ctxfi,snd_hda_intel
options snd_ctxfi index=0
options snd_hda_intel index=-2
I think what the kernel is seeing is the same soundcard that's registering different outputs. One is an analog device, e.g. card 0: PCH [HDA Intel PCH], device 0: ALC284 Analog [ALC284 Analog]. The other is an HDMI device that's used when you plug in HDMI cables and a suitable output such as a stero amp, e.g. card 1: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
If I'm right you'll want to follow these instructions that I've cut/pasted from the Arch wiki Alsa page that I posted earlier:
When loading modules that are used by multiple cards (for example snd-hda-intel) it is recommended to include vendor and product identifications into options. To get vid and pid use:
$ lspci -nn | grep -i audio
00:14.2 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) [1002:4383] (rev 40)
01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] RV770 HDMI Audio [Radeon HD 4850/4870] [1002:aa30]
07:05.0 Multimedia audio controller [0401]: VIA Technologies Inc. VT1720/24 [Envy24PT/HT] PCI Multi-Channel Audio Controller [1412:1724] (rev 01)
Last numbers in square brackets are [vid:pid], so for the above example, for setting Azalia as default card following is correct:
/etc/modprobe.d/alsa-base.conf
# SB [HDA ATI SB]
options snd-hda-intel index=0 model=auto vid=1002 pid=4383
# HDMI [HDA ATI HDMI]
options snd-hda-intel index=1 model=auto vid=1002 pid=aa30
# HiFi [Audiotrak Prodigy 7.1 HiFi]
options snd-ice1724 index=2 model=prodigy71hifi vid=1412 pid=1724
Tip: To list vendor and product IDs of USB sound cards, use the lsusb command instead of lspci.
Basically you want Alsa to "see" each iteration of the same soundcard as a separate "device," in this case the analog and digital modes of one soundcard. The instructions I pasted here should help you sort this out but if not post again and I'll do my best to help you where I can.
Finally, I have solved it by creating file /etc/modprobe.d/alsa-base.conf which content is:
# Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller [8086:0c0c] (rev 06)
options snd_hda_intel index=1 model=auto vid=8086 pid=0c0c
# Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller [8086:8c20] (rev 04)
options snd_hda_intel index=0 model=auto vid=8086 pid=8c20
The problem was the order in which they were initialized at boot time. It was not taking into account the correct one.
Last edited by toni (2014-11-17 20:22:50)

Help. I have a Google Hangout in 40mins and my sound seems to have vanished. I went to Sys Prefs and it came up with Digital Out....and the Internal Speakers option is no longer there. How do I reboot, or fix this please?

help. I have a Google Hangout in 40mins and my sound seems to have vanished. I went to Sys Prefs and it came up with Digital Out....and the Internal Speakers option is no longer there. How do I reboot, or fix this please?

There are many possible causes for this issue. Take each of the following steps that you haven't already tried. Some may not apply to your model. Back up all data before making any changes.
1. Start with the steps recommended in this support article. Don't skip any of the steps. It's the starting point for further efforts to solve the problem.
2. Make sure you have a fully up-to-date installation of OS X.
3. If you've installed an application called "Memory Clean" or any other third-party software that is supposed to "clean" or "purge" memory automatically, remove it according to the developer's instructions and restart. You should do that even if the software is not causing the problem, because it's useless.
4. Other third-party software that has been reported to interfere with sound output includes "Boom" and "Samsung Kies." If applicable, uninstall according to the developer's instructions (not by dragging something to the Trash.)
5. If an AirPlay device is selected for sound output from iTunes (or from other applications via third-party software such as "Airfoil"), deselect it.
6. Launch the application "Audio MIDI Setup" by entering the first few letters of its name in a Spotlight search and selecting it in the results (it should be at the top.) Select Built-in Output from the list on the left. If the Mute boxes are checked, uncheck them.
7. If a red light is visible in the audio-out port when sound should be playing, the internal switch is stuck in the position for digital output. You may be able to free it by inserting and removing a mini-stereo jack of the proper size. If not, the machine needs to be serviced. Inserting any kind of tool in the port may cause damage that won't be covered by the warranty.
If there's no red light, the switch may still be stuck in the headphone position. Try to free it the same way.
8. Disconnect all wired peripherals except keyboard and mouse, if applicable. If more than one display is connected, disconnect all extra ones. Restart and test.
9. If you have a MacBook Air, turn off Bluetooth and restart.
10. Start up in safe mode. Don't log in; just restart as usual when the login screen appears. When you do, make sure the words "Safe Boot" do not appear in the login screen. If they do, the system is still in safe mode and sound won't work.
11. Reset the NVRAM.
12. Reset the SMC.
13. Triple-click anywhere in the line below on this page to select it:
/Library/Preferences/Audio
Right-click or control-click the highlighted line and select
Services ▹ Reveal in Finder (or just Reveal)
from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash. You may be prompted for your administrator login password. Restart the computer and empty the Trash. Recreate your settings in the Sound preference pane.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.
14. Reinstall OS X after backing up all data.
15. Make a "Genius" appointment at an Apple Store.

[SOLVED]No Sound with ALSA - Intel Corporation 82801G HD Audio

Hey all,
I've succesfully installed Arch Linux. My past two attempts have met with failure, all because of my own failure to read and follow directions correctly. This time everything is installed correctly. I am running Kdemod3 on my laptop with Arch and everything works great. I LOVE Pacman and the simplicity of Arch's configuration files. It's super fast and all together simple. My only remaining problem is this:
My sound with ALSA is not functioning. I followed the installation instructions at the arch wiki and after unmuting all of my channels I still would not get any sound. My sound module is snd_hda_intel and it is detected, loaded and the whole nine yards (as far as I can tell). My user is a member of the 'audio' user group also. I looked at the troubleshooting tips on the bottom of the Wiki but decided not to try them as they do not seem to pertain to my card (snd_hda_intel) but I will try them if anyone would like me to.
If anyone has any ideas, they'd be greatly appreciated!:D Anything I can provide that you need I will be more than willing to provide.
Thanks for such a great distribution,
Dan
Last edited by JazzDan (2008-06-29 05:06:35)

Problem resolved. I ran alsaconf, selected my soundcard, and everything was working from there out. Thanks MisfitI38 on the IRC!!!

Sound problems on ProBook 6550b, running on Win 7 Pro x32bit..

I have been getting very similar sound problems on my notebook as posted by most: internal speakers work on original Audio HD drivers, but there is no sound when I connect external speakers or headphones. I up-graded the audio drivers to IDT HD Audio and I get sound coming from external speakers or headphones, but nothing from internal speakers.
I have tried everything from reporting the problem on public forums, live help, and done this or that, but nothing changes. It's so very clear to me that it has to do with audio drivers, which don't seem to work appropriately to cover all aspects of sound output.
I also, often, get this loud, weird, irritating noise and a frozen PC when I am playing music with the notebook, while on the internet. The best I do is not to do both at the same time. I have seen similar problems on blogs, but tangible solutions are NOT offered!!!! Please help...

Audio Switching coudl be due to several reason. if you have tried latest audio drivers and latest Video drivers from hp.com, i suggest you to get audio board replaced for your computer.
Hope it helps.
Regards,
Waseem,
I work for HP.
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Regards,
WW
“I am an HP Employee“
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Sound Preferences: switches from Internal Speakers to Digital Out

I've been having this problem recently. I sent the computer off to Apple a few weeks ago and it helped for a while, but no longer.
My computer has a problem with it's sound output jack or something. Without inserting anything into the plug, the Sound will change for "Internal Speakers" to "Digital Out" and to "Built-in Output" in the Sound Preferences Panel.
Any suggestions?
Message was edited by: davidszcz

I have a 4 month old macbook and experiencing the same problem. Just realized it after installing itunes 8 and since then having a stuttering audio playback problem too. When i plug my headphones into the audiojack the sound switches from headphones to speakers and back as well as itunes playing tracks in a stop and go mode. I repaired the rights several times, installed quicktime 7.5.5 again, reinstalled itunes 8 and for sure running the latest leopard version 10.5.5.
Also thought it could be a hardware problem but after reading this it seems more software related.
Any idea?

5.1 sound problems (ALSA+SB Live digital out)

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