Hi Everyone,

I have a 3 day old install of Jessie on a Dell XPS 8500 amd64 with Xfce 4.10. The sound has been working fine and then just stopped. I opened xfce4-mixer and made sure master volume was turned up- it was. I used the keyboard volume control and saw that mute was off and volume up. The speaker has not been unplugged, turned off or changed jacks. I'm dual booting and my LMDE install plays sound fine. lspci on Debian Jessie shows audio info:

00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)

and

01:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev a1)

Not sure where to go from here. Help much appreciated.

Thanks,

ab

When did you notice on a flash video, dvd, or a you-tube video?

On alsamixer, press f6 and select the onboard card in case the one on the gpu is selected.

Hello,

Thanks for the responses. The sound does not play through websites chrome or iceweasel (only two I have). Also mp3s on my hard drive won't play even though they used to. I tried alsamixer f6 and selected nvidea but no go. still stuck. Output of inxi:

root@polaris:~# inxi -A
Audio: Card-1 Intel 7 Series/C210 Series Family High Definition Audio Controller
driver: snd_hda_intel
Card-2 NVIDIA GF108 High Definition Audio Controller
driver: snd_hda_intel
Sound: Advanced Linux Sound Architecture v: k3.16.0-4-amd64

Is there anything on the hdmi port of your nvidia graphics card? Running Debian Jessie, I have a regular lcd monitor plugged into the dvi port on my graphics card. One time, I used an hdmi cable to plug my tv into the graphics card and thereafter, Debian defaulted to using the graphics card hdmi sound instead of the onboard regular sound card.

Thanks for the reply. No, nothing installed on hdmi port. Still a mystery.

This happened to me yesterday, for no apparent reason, and at first I thought I had gone either deaf or dumb!

Anyway, I wish I could say something clever about this mystery, but I can't. My knowledge about audio on Linux is next to none. But I did find this guide:
https://mysudo.wordpress.com/2015/03...debian-jessie/

It is in German, a language I cannot read or understand, but it has pictures! To make a long story short, I just followed the instructions, without really knowing what I was doing (scary, I know), but it worked, and I now have my audio back!

Good luck!

PS. Thanks Brian, our German friend! DS.

I'm also experiencing lost sound on my Debian8 64-bit on a thinkpad t60 laptop.

Play with 'alsamixer' settings to no vail.

Are you running Xfce? If so, did you see the link I posted above?

You could try installing pavucontrol and fiddle with the output options.

If you can't get it working, please post the output of:

I use IceWM, Xfce is not installed. The problem with sound occurred after the reboot.

last night i put the laptop to sleep mode, when i returned home today and opened the lid to wake up the laptop, mysteriouly the sound starts working again.

will hold my breath and see how this turns out in the next few days

Did you by any chance use headphones before the audio died? I ask because that was the root of my problem, I could not unmute audio with pulseaudio after I had used headphones.

No, I don't use headphone with this laptop. the sound is always enabled and on the loudest settings using 'alsamixer'.

It's strange but I also have sound problems with XFCE 4.10 (Debian Jessie). In my case always after reboot my sound is muted. The link by HMW seems to be useful but I can't test it right now.