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Thread: laptop internal speakers don't work

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  1. #1
    Join Date
    Dec 2010
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    laptop internal speakers don't work

    The laptop model is HP Compaq CQ50.


    Here's the output of lspci:

    00:00.0 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller (rev a2)
    00:01.0 ISA bridge: nVidia Corporation Device 075e (rev a2)
    00:01.1 SMBus: nVidia Corporation MCP78S [GeForce 8200] SMBus (rev a1)
    00:01.3 Co-processor: nVidia Corporation MCP78S [GeForce 8200] Co-Processor (rev a2)
    00:01.4 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller (rev a1)
    00:02.0 USB Controller: nVidia Corporation MCP78S [GeForce 8200] OHCI USB 1.1 Controller (rev a1)
    00:02.1 USB Controller: nVidia Corporation MCP78S [GeForce 8200] EHCI USB 2.0 Controller (rev a1)
    00:04.0 USB Controller: nVidia Corporation MCP78S [GeForce 8200] OHCI USB 1.1 Controller (rev a1)
    00:04.1 USB Controller: nVidia Corporation MCP78S [GeForce 8200] EHCI USB 2.0 Controller (rev a1)
    00:06.0 IDE interface: nVidia Corporation MCP78S [GeForce 8200] IDE (rev a1)
    00:07.0 Audio device: nVidia Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio (rev a1)
    00:08.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1)
    00:09.0 IDE interface: nVidia Corporation MCP78S [GeForce 8200] SATA Controller (non-AHCI mode) (rev a2)
    00:0a.0 Ethernet controller: nVidia Corporation MCP77 Ethernet (rev a2)
    00:0b.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express Bridge (rev a1)
    00:14.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1)
    00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 11h Processor HyperTransport Configuration (rev 40)
    00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 11h Processor Address Map
    00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 11h Processor DRAM Controller
    00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 11h Processor Miscellaneous Control
    00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 11h Processor Link Control
    02:00.0 VGA compatible controller: nVidia Corporation C77 [GeForce 8200M G] (rev a2)
    07:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
    The sound works if I connect an external speaker to the jack. But the internal speakers don't work.

    I have made sure sound is not muted and raised the controls in sound preferences, alsamixer and gnome-alsamixer.

    This is on Ubuntu 10.10. Output of uname -a:

    Linux tilo 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 01:41:57 UTC 2010 i686 GNU/Linux
    How can I fix this problem?

  2. #2
    Join Date
    May 2008
    Location
    Ohio, USA
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    Distro
    Ubuntu Gnome 14.04 Trusty Tahr

    Re: laptop internal speakers don't work

    Use the alsa-info-script to provide detailed information.
    Run this command in a terminal:
    Code:
    wget http://www.alsa-project.org/alsa-info.sh -O alsa-info.sh && bash alsa-info.sh
    Choose the upload option and provide a link for the output.
    [Terminal="Applications->Accessories->Terminal"]

  3. #3
    Join Date
    Dec 2010
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    Re: laptop internal speakers don't work


  4. #4
    Join Date
    May 2008
    Location
    Ohio, USA
    Beans
    6,904
    Distro
    Ubuntu Gnome 14.04 Trusty Tahr

    Re: laptop internal speakers don't work

    Try this. Using a Terminal="Applications->Accessories->Terminal"
    Open this file for editing:
    Code:
     gksudo gedit /etc/modprobe.d/alsa-base.conf
    Insert this line at the bottom:
    Code:
     options snd-hda-intel model=laptop position_fix=1 enable=yes
    Save. Close. Reboot.
    Check your levels in alsamixer.
    Code:
     alsamixer
    Press <F6> to select the correct soundcard.
    Press <F3> to show playback levels. <F4> selects capture levels [or use <Tab>]
    Use the left/right arrow keys to select and up/down arrow keys to change levels. <M> to mute/unmute.
    Go to "System ->Preferences ->Sound" and make sure the correct soundcard is default and adjust your profile on the hardware tab.
    On the output tab choose the correct device.

  5. #5
    Join Date
    Dec 2010
    Beans
    10

    Re: laptop internal speakers don't work

    I followed all the steps you mentioned.

    After adding the line
    options snd-hda-intel model=laptop position_fix=1 enable=yes
    in

    /etc/modprobe.d/alsa-base.conf

    The jack also stopped working.

    In alsamixer I have selected HDA NVidia as the sound card.

    In Sound Preferences, there's only one device listed. I have tested all the profiles in the Hardware tab.

    Now, there's no sound output.

  6. #6
    Join Date
    Dec 2010
    Beans
    10

    Re: laptop internal speakers don't work

    Update:

    In Sound Preferences, Hardware tab, when I select Analog Stereo Duplex or Analog Stereo Output, the jack works. But the internal speakers don't with any profile.

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