No Sound Hardware Detected For Other Users

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Hey Y’all,

This morning my wife complained that she had no sound when she was logged on to my machine. I logged on to her account and brought up System/Preferences/Sound to see if she had inadvertently selected some other sound output device. Hey, it happens. There was no sound hardware detected. I have a USB microphone and an integrated on board sound card. Neither of these sound devices were available on the Hardware, Input, or Output tabs.

I have access to all these devices when I log on as myself.

This system has been running smoothly since I installed CentOS 6.1 all those many years ago when that was the current point release. Now that
6.6 is out I’m seeing issues with video, fixed already, sound, not fixed already, and my web cam which I have yet to ask for help with. I’m not saying this sound problem has anything to do with 6.6.

Does anyone have any idea where I can start looking to figure out what’s going on with my wife’s sound hardware detection?


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^ ^ Mark LaPierre Registered Linux user No #267004
https://linuxcounter.net/
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5 thoughts on - No Sound Hardware Detected For Other Users

  • First thing I would check is that other users are not logged in when user in question logs in. (It may be that only one of users at a time can access some of the devices – I’m on the road so have no way to check…)

    Valeri

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    Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247
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  • Hey Valeri,

    That’s a great idea. It’s the first thing I thought of. I rebooted the machine and logged into her account first thing. No joy, no hardware detected.


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    /(_)\
    ^ ^ Mark LaPierre Registered Linux user No #267004
    https://linuxcounter.net/
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  • I’ve been having the same issue on my system as well (Ubuntu 14.04) and I noticed that pulseaudio was not loading – not sure if this is something to do with an update gone bad or what. I’m currently being forced to start pulseaudio manually and hoping that another update will resolve it:

    $ killall pulseaudio && pulseaudio -D

    Cheers, ak.

  • On Sat, 2014-11-01 at 19:51 -0400, Mark LaPierre wrote:

    Something related to 6.6 changes seems to be in play as I have similar problems with sound, how X starts and automount of USB vfat drives, all of which hve been working rock-solid since … 4.x?

    Mu difference from you, possibily, is my problems began with the update from CR repository just before the 6.6 point release. My system became unstable too, locking up (but I suspect heat – I had clened for a long time and it’s in a dirty room) , putting junk files in the root console, changing the character output on tty1 to unreadbale (white boxes mostly)
    when I telinit 3.

    Anyway, those are for another thread.

    This may be relevant. I can’t get sound detected when I use the normal X
    stuff under Gnome after I havev all three X sessions running, and no sound … almost.

    I normally have three logins going and the sound from youtube, notification sounds and such work fine on the first X session started prior to the 6.6 CR update.

    With the CR update, that stopped, along with no hardware detected in the first X session.

    I was patient and hoped the final updates to bring me to the full 6.6
    might fix things.

    Anyway, by accident I discovered that youtube and other such sound play through the third (that is, last) X session started. Further, that session can detect hardware when I right-click the speaker on my taks bar and select preferences.

    How this might relate to your issues I’m not knowledgeable enough to say. HTH, Bill

  • Maybe something is wrong with console management. Add her account to the “audio” group and see if that works around the problem.