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Thread: Strange sound behavior on Lenovo P51

  1. #1

    Default Strange sound behavior on Lenovo P51

    Hello everyone!

    I've got a strange issue with sound on my new Lenovo P51
    Basically if change sound volume in system configuration (slider) between 0 and 100%, the volume does not change. It's changing when it's above 100% or when it's 0% (mute). It's changing fine for any particular application, but not the system sound. I've tried both Sound app and pavucontrol
    Any thoughts? Drivers?

  2. #2
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    Default Re: Strange sound behavior on Lenovo P51

    Which desktop environment are you using? What level is your system notifications (in pavucontrol) set at?

  3. #3
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    Default Re: Strange sound behavior on Lenovo P51

    Also, you could try setting 'flat-volumes=no' in /etc/pulse/daemon.conf and restart pulseaudio with 'pulseaudio -k' (as user), although I'm not certain that this is the issue here.

  4. #4

    Default Re: Strange sound behavior on Lenovo P51

    Quote Originally Posted by deano_ferrari View Post
    Which desktop environment are you using? What level is your system notifications (in pavucontrol) set at?
    it's gnome
    changing system sound in pavucontrol actually does change the volume o_O

  5. #5

    Default Re: Strange sound behavior on Lenovo P51

    Quote Originally Posted by deano_ferrari View Post
    Also, you could try setting 'flat-volumes=no' in /etc/pulse/daemon.conf and restart pulseaudio with 'pulseaudio -k' (as user), although I'm not certain that this is the issue here.
    and if i set this setting then system sounds do not affect volume, but the issue persists

  6. #6

    Default Re: Strange sound behavior on Lenovo P51

    well.. it kind of works.
    In pavucontrol on configuration tab the profile is set to Analog stereo Duplex. If i set it to Digital Stereo (HDMI), then changing the volumes works as expected. So maybe there is some misconfiguration in profile? How do i configure these profiles?

    PS and now i've also found out that HDMI audio is not being detected. I.e pacmd list-cards shows only analog card.

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    Default Re: Strange sound behavior on Lenovo P51

    Quote Originally Posted by virgi View Post
    well.. it kind of works.
    In pavucontrol on configuration tab the profile is set to Analog stereo Duplex. If i set it to Digital Stereo (HDMI), then changing the volumes works as expected. So maybe there is some misconfiguration in profile? How do i configure these profiles?

    PS and now i've also found out that HDMI audio is not being detected. I.e pacmd list-cards shows only analog card.
    For troubleshooting at a hardware/driver level, running the alsa-info.sh utility is a good idea. It can upload the output to an online server, and provide a URL whch can be shared here so that others can review it.

    https://en.opensuse.org/SDB:Audio_tr...ed_information

  8. #8

    Default Re: Strange sound behavior on Lenovo P51

    Quote Originally Posted by deano_ferrari View Post
    For troubleshooting at a hardware/driver level, running the alsa-info.sh utility is a good idea. It can upload the output to an online server, and provide a URL whch can be shared here so that others can review it.

    https://en.opensuse.org/SDB:Audio_tr...ed_information
    oh thank you good sir!

    here is the output
    http://www.alsa-project.org/db/?f=cd...8bf0d5839a78e8

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    Default Re: Strange sound behavior on Lenovo P51

    Is there an /etc/modprobe.d/50-sound.conf file ?

    Have you tried configuring the sound device with YaST ?

    There is an error in the diagnostic script report
    Code:
    snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00
    ... but I don't know what that means in the context of your PC problem

    .
    Last edited by oldcpu; 13-Nov-2017 at 12:48.

  10. #10

    Default Re: Strange sound behavior on Lenovo P51

    Quote Originally Posted by oldcpu View Post
    Is there an /etc/modprobe.d/50-sound.conf file ?

    Have you tried configuring the sound device with YaST ?

    There is an error in the diagnostic script report
    Code:
    snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00
    ... but I don't know what that means in the context of your PC problem

    .
    contents:
    Code:
    options snd slots=snd-hda-intel
    # nS1_.q9PsajK07I7:Intel Corporation
    alias snd-card-0 snd-hda-intel

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