Pulse Audio, Lost Sound

I'm using Gnome with Pulse Audio and was working well for a while. Earlier today I was playing a .wmv file and my whole desktop locked up forcing a hard reboot of the computer. When I got gnome back up I had no sound and can't figure out why.
Volume control thing on the taskbar shows that sound is unmuted and at full volume. The pulse audio app shows the same thing. If I open up alsamixer it shows only 1 channel which is also unmuted and at full volume.
Any ideas to troubleshoot this? Thanks.

Well I (sort of) solved this.... I reverted back to plain ALSA and it works fine
The hard reboot was caused while watching a .wmv video. I don't remember precisely now in what program, I don't have vlc installed on this computer so I'm pretty sure it was Totem.
Can't find anything on the wiki pages to help me, but thanks for your suggestions.
djszapi wrote:Or if you wouldn't like to check it, restore your backup
Well I do back up all my data religiously, but don't even know what to restore to make this one work short of a full image (which I don't have). I have snapshots going back a few months but not sure which file(s) need(s) to be rolled back.
I'm happy with ALSA for now, I never got much out of Pulse, just installed it out of curiousity.
Last edited by jowilkin (2009-07-29 00:38:51)

Similar Messages

Pulse audio no sound card detected

Hello,
I have installed pulse audio according to the wiki but after install and reboot no sound card is detected. My pc is sony vaio VGN-NW21MF and the lspci output for the sound device is following
01:00.1 Audio device: ATI Technologies Inc RV710/730
I don't have alsa installed and try the trouble shooting section in wiki but still don't resolve the problem.Thx for any help. I using gnome and have dbus loaded
Last edited by arturr (2011-01-25 16:41:33)

I am confused have you installed alsa or not?
your first sentence says that you have, your last says that you don't. and your title talks about pulse audio.

IDT High Definition Audio CODEC - sound problem

Hi. I'm owning an ultrabook - HP SpectreXT 13-2106TU. No sounds coming out from my laptop for a few days now. I've tried troubleshooting - it says : IDT High Definition Audio CODEC has a driver problem. So, somebody help me please?
This question was solved.
View Solution.

Hi
Take a look at this thread & follow what HP Expert DavidPK has told in the other thread inside, & see if it's working for you:
http://h30434.www3.hp.com/t5/Notebook-PC-Sound-and-Audio/lost-sound/m-p/4231472
Thanks,
++Please click KUDOS / White thumb to say thanks
++Please click ACCEPT AS SOLUTION to help others, find this solution faster
**I'm a Volunteer, I do not work for HP**

[Gnome 3] Uses for System Sound Alsa instead of Pulse Audio?!

If I open "Sound Settings" click on the reiter "Applications" then I see which programs are currently playing sound.
Because I have installed the freedesktop sound theme I hear some sound if I raise or lower the volume.
But why does it listen that the gnome-shell uses the alsa-plugin instead of pulse audio directly?!
Best Regards

Hmm... well I'm using Gentoo, and I have alsa flag turned on in my instalation of sun-jdk. So I don't know, but as I say, playing buffered sound with SourceDataLine and hardware mixer (not Java Sound Audio Engine) causes the same artifacts at the end of the sound as mplayer using oss. Might as well not be related at all, but then maybe you (or anyone else) can tell me if you can observe the same kind of behaviour while playing sound with java on your machine? I have cheap Realtek High Definition sound card, but it doesn't change the fact that in Windows, the sound plays correctly.
But thanks for reply :)
PS. by OSS in this context I mean oss emulation in ALSA.

Problems with sound (pulse audio) configuration

My sound system is somehow not working properly. Only one playback at a time is working. Either flash player, a media player, a game. But never both at the same time. I want to use Cinnamon + Pulse Audio. I don't know what I need to install to get it working (pulseaudio, also, oss, ....) I assume the problem is that I installed several sound systems at the same time.
Could you be so nice and help me to determine and fix the problem? I have no clue where to start. I read the appropriate Wiki articles but I'm not sure what exactly I need to do. All I want is a working and autostarting/respawning pulse audio ...
Thank you in advance!
Last edited by cRaZy-bisCuiT (2014-04-27 17:27:26)

:: Installation fortsetzen? [J/n] n
[crazy@tuxgaming ~]$ pidof pulseaudio
1481
[crazy@tuxgaming ~]$ fuser -v /dev/snd/*
Specified filename /dev/snd/by-path is not a mountpoint.
Specified filename /dev/snd/controlC0 is not a mountpoint.
Specified filename /dev/snd/controlC1 is not a mountpoint.
Specified filename /dev/snd/hwC0D2 is not a mountpoint.
Specified filename /dev/snd/hwC1D0 is not a mountpoint.
Specified filename /dev/snd/hwC1D1 is not a mountpoint.
Specified filename /dev/snd/hwC1D2 is not a mountpoint.
Specified filename /dev/snd/hwC1D3 is not a mountpoint.
Specified filename /dev/snd/pcmC0D0c is not a mountpoint.
Specified filename /dev/snd/pcmC0D0p is not a mountpoint.
Specified filename /dev/snd/pcmC0D1c is not a mountpoint.
Specified filename /dev/snd/pcmC0D1p is not a mountpoint.
Specified filename /dev/snd/pcmC0D2c is not a mountpoint.
Specified filename /dev/snd/pcmC1D3p is not a mountpoint.
Specified filename /dev/snd/seq is not a mountpoint.
Specified filename /dev/snd/timer is not a mountpoint.
So this is the trouble?! What to do now?

[Solved] Pulse Audio won't work on newly installed system with Gnome

About a year ago I got a new computer and more or less retired my old one with my first arch install. Recently, I decided I would set it up as a Linux system for my sister. I first updated the computer, which broke it royally (since it was last updated before the /bin symlinking happened) but I eventually got it fixed. However, after doing that, Pulse Audio wouldn't work, then I broke X and decided to do a full reinstall.
Now, on this clean install, Pulse is again not working. I have set up Gnome and gdm to work, and everything works great except Pulse. The wiki says that Pulse with Gnome 3 requires no extra setup, so I have not edited conf files at all. I have, however, installed "pulseaudio-alsa", which created this conf file:
# Use PulseAudio by default
pcm.!default {
type pulse
fallback "sysdefault"
hint {
show on
description "Default ALSA Output (currently PulseAudio Sound Server)"
ctl.!default {
type pulse
fallback "sysdefault"
# vim:set ft=alsaconf:
which seems fairly standard. Anyway, I tried removing it and had the same problems. When I have Pulse Audio running and try to play sound, I get the error:
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
Playback open error: -16,Device or resource busy
which is obviously trying for ALSA, or from mplayer:
AO: [pulse] Init failed: Connection refused
Running "pacmd list" nets me:
Daemon not responding.
and pavucontrol gives me:
Fatal Error: Unable to connect to PulseAudio: OK
when I try to start it.
No pulseaudio commands seem to work (e.g. pulseaudio -k). They don't raise any errors, but also it doesn't have any effect on the server.
The only asound conf file is "/etc/asound.conf", clearing ~/.config/pulse does not fix the issue.
Journalctl does not seem to give anything interesting (Stale PID is the only message when starting Pulse), though admittedly I'm just vgrepping all of journalctl since I don't know how to narrow it down more, nor does the output from pulseaudio -vvvv. There are a lot of errors in pulseaudio -vvvv, but they all appear to be related to loading devices that don't exist, and so I assume not a problem, I can post it if necessary. Sometimes when I kill Pulse the process refuses to go away and I have to reboot in order to clear the process out, but I don't think that's related.
If I kill Pulse or keep it from starting on boot, I can play sound, but only through ALSA, and while I didn't have the problem I expected (I can still play multiple things simultaneously) there's still the issue that the volume buttons in Gnome will no longer work and that the volume levels ALSA reports are basically nonsense to a human being.
I basically just blurbed everything I thought of/found on the wiki or forums, and I'm not really sure where to go from here. It's a fairly old computer, so that could be related, and I'd be willing to dump Pulse if Gnome could integrate well with ALSA, but obviously fixing Pulse would be the preferred option.
Any suggestions on where to look next? I've run out of ideas.
Thanks.
Last edited by HuFlungDu (2014-01-07 19:52:11)

Wonder if you have a conflict between two audio cards ... for example, I have a friend with some PulseAudio problems caused by conflict between the HDMI audio from his graphics card and his onboard sound. Something would switch PulseAudio to the wrong card and it would just quit after getting itself into a twist. Unsolved, I'm afraid, but have a look at commands such as:
aplay -l
pactl list sinks
pactl stat
(Latter two will need PulseAudio coaxed into life first)
and of course, the Arch wiki.
If there is a conflict, blacklisting kernel modules might also be needed.

[SOLVED] Pulse Audio / ALSA audio sharing.

SOLUTION AT POST # 4
My computer has integrated audio and HDMI. From my understanding, to be able to switch between these two types of audio hardware I require a sound server. If this is not correct, please let me know so that I can uninstall Pulse Audio. Assuming it is correct, I have numerous problems with my audio. When running multiple programs, often I have to open pavucontrol and move the volume slider around in order for the audio to play in a newly opened program. I have XFCE's volume control set to ALSA, and I am unable to change it to Pulse Audio for some reason. This is a problem because every time I mute or change the volume using XFCE's volume control, I then have to go into Pulse Audio later to change the audio back. If I run a game or VLC, and then open Firefox, I get no Flash audio. However, if I run Firefox first, I have no audio in VLC or in game. Usually I can fix this by opening pavucontrol and messing with the volume sliders. This is not ideal. Ultimately it seems the problem is that the program I am using are not sharing the audio hardware, so only one can play audio at a time.
What can I do to make my audio work as it should?
Here is my audio hardware
# lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
Screenshot of the only sound card option I have in the XFCE Audio Mixer Plugin:
http://imgur.com/3TJWC
I searched the Wiki, but it is out of date. https://wiki.archlinux.org/index.php/PulseAudio#ALSA
. . . For the applications that do not support PulseAudio and support ALSA it is recommended to install the PulseAudio plugin for ALSA. This package also contains the necessary /etc/asound.conf for configuring ALSA to use PulseAudio.
To prevent applications from using ALSA's OSS emulation and bypassing Pulseaudio (thereby preventing other applications from playing sound), make sure the module snd_pcm_oss is not in the MODULES array in /etc/rc.conf. If it is currently loaded (lsmod|grep oss), disable it by executing: . . .
How can I do this using systemd instead of rc.conf?
Edit: Since there is a lack of response, I am completely changing the entire post in order to be clear and productive.
Last edited by qKUqm3wtY4 (2013-01-05 04:52:15)

I found a solution here: http://forums.opensuse.org/english/get- … audio.html
You must create /etc/asound.conf and insert the following:
pcm.pulse {
type pulse
ctl.pulse {
type pulse
pcm.!default {
type pulse
ctl.!default {
type pulse
pcm.phononpulse {
type plug
slave.pcm {
type pulse
hint {
show on
description "PulseAudio"

New kernel 2.6.34 and xorg1.8 and no audio intel sound card

I have no audio available for my: Intel Corporation 82801H (ICH8 family) HD Audio Controller
also alsamixer doesnt work anymore.........
alsamixer
cannot open mixer: No such file or directory
when I run alsaconf I get a proper detection then when I try to config I get:
Loading driver...
:: Saving ALSA Levels
[BUSY] /usr/sbin/alsactl: save_state:1504: No soundcards found...
[DONE]
:: Restoring ALSA Levels
[BUSY] /usr/sbin/alsactl: load_state:1610: No soundcards found...
[FAIL]
Setting default volumes...
amixer: Mixer attach default error: No such file or directory
everything was fine till todays updates.
tried pulse audio........ alsamixer then worked but wouldnt put through the stuff when I did alsaconf stated:
Loading driver...
:: Saving ALSA Levels
[BUSY] /usr/sbin/alsactl: save_state:1504: No soundcards found...
[DONE]
:: Restoring ALSA Levels
[BUSY] /usr/sbin/alsactl: load_state:1610: No soundcards found...
[FAIL]
Setting default volumes...
Invalid MIT-MAGIC-COOKIE-1 keyInvalid MIT-MAGIC-COOKIE-1 keyXOpenDisplay() failed
ALSA lib pulse.c:229:(pulse_connect) PulseAudio: Unable to connect: Connection refused
amixer: Mixer attach default error: Connection refused
Last edited by splippity (2010-06-21 19:35:52)

Edit: FIXED!
Hi,
Edit: Running 86_64
EDIT: Adding model=toshiba as options in /etc/modprobe.d/sound.conf worked great!!!
I am having the same problem as OP.
Same snd card: Intel Corporation 82801H (ICH8 family) HD Audio Controller
Also, when the kernel boots it shows following message(s):
Initializing USB Mass Storage driver...
scsi5 : usb-storage 2-5.6:1.0
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
HDA Intel 0000:00:1b.0: irq 32 for MSI/MSI-X
HDA Intel 0000:00:1b.0: setting latency timer to 64
phy0: Selected rate control algorithm 'iwl-agn-rs'
firewire_core: created device fw0: GUID 00023f7aae4198c2, S400
input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input12
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffffa11032a9>] alc_build_controls+0x159/0x4f0 [snd_hda_codec_realtek]
PGD 7c1d3067 PUD 7c1d1067 PMD 0
Oops: 0000 [#1] PREEMPT SMP
last sysfs file: /sys/devices/virtual/sound/timer/uevent
CPU 0
Modules linked in: snd_seq_dummy snd_hda_codec_realtek snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device arc4 snd_pcm_oss snd_hda_intel(+) ecb usb_storage snd_mixer_oss snd_hda_codec autofs4 btusb snd_hwdep fuse mmc_block cpufreq_powersave sdhci_pci uvcvideo iwlagn videodev v4l1_compat snd_pcm snd_timer snd soundcore sdhci tifm_sd usbhid hid bluetooth joydev cpufreq_ondemand v4l2_compat_ioctl32 pcmcia firewire_ohci snd_page_alloc mmc_core iwlcore nvidia(P) i2c_i801 mac80211 i2c_core video acpi_cpufreq yenta_socket firewire_core tifm_7xx1 intel_agp freq_table output rsrc_nonstatic led_class crc_itu_t tifm_core pcmcia_core cfg80211 iTCO_wdt toshiba_bluetooth uhci_hcd iTCO_vendor_support rfkill ehci_hcd r8169 mii psmouse pcspkr serio_raw evdev ac battery processor usbcore thermal sg button rtc_cmos rtc_core rtc_lib ext4 mbcache jbd2 crc16 sr_mod cdrom sd_mod pata_acpi ata_generic ata_piix ahci libata scsi_mod
Pid: 1107, comm: modprobe Tainted: P 2.6.34-ARCH #1 ISRAA/SATEGO X200
RIP: 0010:[<ffffffffa11032a9>] [<ffffffffa11032a9>] alc_build_controls+0x159/0x4f0 [snd_hda_codec_realtek]
RSP: 0018:ffff88007bf27c48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff880078f9cc00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88007cb273c0 RDI: ffff880078f9cc00
RBP: ffff88007bf27ca8 R08: 0000000000000000 R09: 2222222222222222
R10: 0000000000000000 R11: 0000000000000002 R12: ffff88007b635800
R13: ffff88007cb273c0 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f23f8c79700(0000) GS:ffff880001800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 000000007ca03000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process modprobe (pid: 1107, threadinfo ffff88007bf26000, task ffff88007bc31560)
Stack:
ffff88007bf27c78 ffff880078f9cc00 ffff88007b635800 0000000000000001
<0> ffff88007b635808 0000000000000000 ffff88007bf27ca8 ffff880078f9cc00
<0> ffff88007b3f7658 ffff88007c664400 ffff88007f9ba088 0000000000000000
Call Trace:
[<ffffffffa106bd70>] snd_hda_codec_build_controls+0x50/0x60 [snd_hda_codec]
[<ffffffffa106bda8>] snd_hda_build_controls+0x28/0x90 [snd_hda_codec]
[<ffffffffa10ad071>] azx_probe+0x947/0x9f8 [snd_hda_intel]
[<ffffffff811cb68a>] ? kobject_get+0x1a/0x30
[<ffffffff811e9635>] pci_device_probe+0x75/0xa0
[<ffffffff8127e4ba>] ? driver_sysfs_add+0x5a/0x90
[<ffffffff8127e783>] driver_probe_device+0x93/0x1a0
[<ffffffff8127e92b>] __driver_attach+0x9b/0xa0
[<ffffffff8127e890>] ? __driver_attach+0x0/0xa0
[<ffffffff8127d77e>] bus_for_each_dev+0x5e/0x90
[<ffffffff8127e459>] driver_attach+0x19/0x20
[<ffffffff8127df77>] bus_add_driver+0xc7/0x2e0
[<ffffffff8127eba1>] driver_register+0x71/0x140
[<ffffffff81076edd>] ? notifier_call_chain+0x4d/0x70
[<ffffffff811e98c1>] __pci_register_driver+0x51/0xd0
[<ffffffff8107723c>] ? __blocking_notifier_call_chain+0x5c/0x80
[<ffffffffa10b2000>] ? alsa_card_azx_init+0x0/0x20 [snd_hda_intel]
[<ffffffffa10b201e>] alsa_card_azx_init+0x1e/0x20 [snd_hda_intel]
[<ffffffff81002149>] do_one_initcall+0x39/0x1a0
[<ffffffff8108d79f>] sys_init_module+0xdf/0x250
[<ffffffff81009ec2>] system_call_fastpath+0x16/0x1b
Code: 45 8b 5d 50 45 85 db 0f 84 d6 00 00 00 49 8b 84 24 78 01 00 00 31 d2 45 31 f6 48 85 c0 74 3b 0f 1f 00 49 63 ce 4c 89 ee 48 89 df <0f> b7 0c 48 e8 5e 44 f6 ff 85 c0 0f 88 e5 fe ff ff 41 83 c6 01
RIP [<ffffffffa11032a9>] alc_build_controls+0x159/0x4f0 [snd_hda_codec_realtek]
RSP <ffff88007bf27c48>
CR2: 0000000000000000
---[ end trace 18cfe50d22f553b9 ]---
scsi 5:0:0:0: Direct-Access SanDisk Cruzer Micro 8.01 PQ: 0 ANSI: 0 CCS
sd 5:0:0:0: Attached scsi generic sg3 type 0
sd 5:0:0:0: [sdc] 7862911 512-byte logical blocks: (4.02 GB/3.74 GiB)
sd 5:0:0:0: [sdc] Write Protect is off
sd 5:0:0:0: [sdc] Mode Sense: 45 00 00 08
sd 5:0:0:0: [sdc] Assuming drive cache: write through
sd 5:0:0:0: [sdc] Assuming drive cache: write through
sdc: sdc1
sd 5:0:0:0: [sdc] Assuming drive cache: write through
sd 5:0:0:0: [sdc] Attached SCSI removable disk
Adding 1023996k swap on /swapfile. Priority:-1 extents:11 across:2121724k
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
ADDRCONF(NETDEV_UP): wlan0: link is not ready
r8169 0000:04:00.0: eth0: link up
r8169 0000:04:00.0: eth0: link up
ADDRCONF(NETDEV_UP): wlan0: link is not ready
r8169 0000:04:00.0: eth0: link up
r8169 0000:04:00.0: eth0: link up
eth0: no IPv6 routers present
Last edited by knysng (2010-06-23 19:10:34)

Equium L40 - Lost sound in the headphone jack

Hi, Hoping someone can help.
My current sound driver is Soundmax Integrated Digital HD Audio. And from what I remember has always been. I've downloaded it a few times from the Toshiba site for my computer and it always comes back to this driver.
The problem I have is that somewhere along the line it has lost sound in the headphone jack. I can no longer tell if i have a hardware problem or if the jack is broken. I now have Windows 7 installed but the problem was there when I had the original Vista program installed.
A few things my system tells me(Don't know if it helps)
Location 0 (Internal High Definition Audio Bus)
C:\Windows\system32\drivers\ADIHdAud.sys
C:\Windows\system32\drivers\drmk.sys
C:\Windows\system32\drivers\portcls.sys
If i can't fix this because it is the jack can anyone tell me of another line for sound out I could use please? possibly USB.
Thanks for reading.

Hi buddy,
Can you hear sound via internal speakers?
That means the problem only is the headphone jacket?!
I think if the internal speakers work but no external speakers or headphone it seems to be a hardware issue. Have you also checked the Windows sound settings for audio output port?
In worst case you need professional help from an authorized service provider. Here you can find a list of them:
http://eu.computers.toshiba-europe.com > Support & Downloads > Find an authorized service provider

I've lost sound om my firefox browser version 3.6.8 I have no sound anymore in you tube or websites with sound

I've lost sound with my browser version 3.6.8 no sound in you tube anymore or web sites with audio. Internet explorer sound is fine?
== This happened ==
Every time Firefox opened
== one week ago

Hello.
Hopefully this support article is what you need:
http://support.mozilla.com/en-US/kb/No+sound+in+Firefox

Pulse Audio jack detection problem.

Hi, In my work I use headphones for listening musing and if I shutdown the laptop and then remove the headphones and when I start it in home there is no sound. I found the solution: plug headphones and unplug them. For me Pulse audio does not make check on system start if there are headphones connected but uses last value, and only changes it on plug and unplug.
Is there are script that I can add to systemd on startup to check jack for headphones?
Thanks.

Hello,
since one recent update in January 2014 I notice the same Problem as Indomitable reported.
I am using Archlinux on my Lenovo X201 (KDE and Pulseaudio installed). After reboot I hear no sound from the internal speakers. As Indomitable sayed, plugging and unplugging some headphones fixes the problem until next reboot. (First I was afraid of a damaged jack causing a false detection - so I am now eased up that somebody else reports this behaviour, too.)
As a quick workaround in KDE (when you have no Sound through internal speakers and no Headphones laying around) you can go to [Audio & Video settings > Audio Hardware Setup > Device Configuration] and choose the Connector: "Speakers" instead of "Analog Output".
Of course this is no permanent solution since this bypasses the automatic jack detection.
Is this strange behaviour a bug or just a misconfiguration?
Last edited by pforcht (2014-01-27 09:47:09)

Lost sound when upgraded to Windows

I lost sound when I upgraded my Gateway Solo250 from Windows 98 to Windows XP Home. On Device manager, the systems reports that my sound controls are working but the Multimedia Audio Controller is not installed (Problem 28). I have downloaded drivers from Gateway and from Creative Labs Sound Blaster Li've but can not install them. I get the error message that no sound card is being detected. What happened? How do I fix this without messing up anything else, since the computer is operating smoothly, except without sound. Thanks for your help!

I have the exact same problem. I got numbers off of the creative chip on the motherboard, if that helps to get a solution. Gateway lists that XP is not supported on solo250. Creative is the only source that can solve this, since all of these companies laid off all of the developers. Did you find any help at all? I would hate to go back to win98...

Lost sound

Any idea why I may have lost all sound to my laptop? The system finds no audio devices installed, WTH?? Just lost sound recently...

Hi,
Yes, as per your PC specs:
http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c00835807
It is was shipped with Onboard HD Controller from REaltek, if you tried all Steps on the webpage given below:
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c00833257
You may have to purchase PCI sound Card that can be installed in following Procedure>
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00593575&tmp_task=useCategory&lc=en&dlc=en&cc=u...
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c01050076
Thank You.
Kiran Talluri
Say thanks by clicking the "Kudos! Star" which is on the left.
Make it easier for other people to find solutions, by marking my answer "Accept as Solution" if it solves your issue

After a recent HP update lost sound, DV7, win7 64bit

after a recent HP update i lost sound from speakers, trouble shoot says everything working fine.

Get your Product Number by pressing Fn + Esc key or check the Service Tag attached to bottom, may be under battery.
Go to the link below.Enter your Product Number .After entering PN, click Next ,then choose Software & Drivers.On the next page use the dropdown to select your OS (probably Windows 7 64bit). A list will populate with drivers. Download & Save the latest Audio driver.Go into Control Panel,Programs & Features- Uninstall IDT software.Restart the laptop. After Windows loads, install IDT audio using the downloaded file.
http://h10025.www1.hp.com/ewfrf/wc/siteHome?cc=us&lc=en
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**Click Accept as Solution on a Reply that solves your issue to help others**

Lost sound in final cut pro 7

I need help. I have lost sound in final cut pro 7. Everything has sound and plays on the desktop just fine, and when I import it into FCP I can see the sound bars moving and the sound tab shows sound, but you cannot hear the sound. Please help. randall

Check the setting in View > Audio Playback:

Pulse Audio, Lost Sound

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