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Dear Friends, I've installed Slack 12.2 (all packages for simplicity) onto a HP 6730s laptop with an integrated Intel HD audio in it. I have no sound. I've tried some ...
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  1. #1
    kea
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    No sound - Slack 12.2, HP 6730s


    Dear Friends,

    I've installed Slack 12.2 (all packages for simplicity) onto a HP 6730s laptop with an integrated Intel HD audio in it. I have no sound. I've tried some tricks without any success. E.g. I've reinstalled a/devs-xxx.tgz in order to have /dev/dsp0 etc. After I had reinstalled the package I had /dev/dsp0, /dev/dsp as a symlink etc. There were no sound at all. After a reboot I noticed that the reinstalled devices disappeared. (!???)

    lsmod says that there are a large number of snd modules are loaded:
    snd_seq_dummy
    snd_seq_oss
    snd_seq_midi_event
    snd_seq
    snd_seq_device
    snd_pcm_oss
    snd_mixer_oss
    snd_hda_intel
    snd_pcm
    snd_timer
    snd_page_alloc
    snd_hwdep
    snd snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd _mixer_oss,snd_hda_intel,snd_pcm,snd_timer,snd_hwd ep
    soundcore

    Alsaconf, alsactl etc. seems to work correrctly, Master, Headphone, PCM is not muted.

    Neiter aplay nor mpg123 can produce a hearable sound.

    What should (can) I do? Thx, KEA.

  2. #2
    Linux Engineer Freston's Avatar
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    Hi and welcome!


    What is the exact make&model of the intel audio card?
    Code:
    lspci|grep -i audio

    And what version of Alsa are you running?
    Can't tell an OS by it's GUI

  3. #3
    kea
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    Hi,

    00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)

    Kernel 2.6.27.7

    Alsa packages:
    alsa-lib-1.0.17a-i486-1
    alsa-oss-1.0.17-i486-1
    alsa-utils-1.0.17-i486-2

    I have tried to plug in an earphone just now, and that sounds!

    You have any idea, haven't you?

    KEA.

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    Just Joined! mingdao's Avatar
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    Run this command:
    Code:
    speaker-test -Dplug:front -c2 -t wav
    And check "lspci -v" to see what kernel module it's using.

    The codec for some of those HDA Intel are better supported than others.

    Can you also give a link to the specification page for your laptop?

  6. #5
    kea
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    lspci -v says:

    00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
    Subsystem: Hewlett-Packard Company Unknown device 3614
    Flags: bus master, fast devsel, latency 0, IRQ 17
    Memory at 98800000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [50] Power Management version 2
    Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
    Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
    Capabilities: [100] Virtual Channel <?>
    Capabilities: [130] Root Complex Link <?>
    Kernel driver in use: HDA Intel
    Kernel modules: snd-hda-intel


    speaker-test (I've never heard of that) was saying:
    root@kea-otthon:~# speaker-test -Dplug:front -c2 -t wav

    speaker-test 1.0.17

    Playback device is plug:front
    Stream parameters are 48000Hz, S16_LE, 2 channels
    WAV file(s)
    Rate set to 48000Hz (requested 48000Hz)
    Buffer size range from 64 to 16384
    Period size range from 32 to 8192
    Using max buffer size 16384
    Periods = 4
    was set period_size = 4096
    was set buffer_size = 16384
    0 - Front Left
    1 - Front Right
    Time per period = 2.731036
    0 - Front Left
    1 - Front Right
    Time per period = 3.071838
    0 - Front Left
    1 - Front Right
    Time per period = 2.901391
    0 - Front Left
    1 - Front Right
    Time per period = 3.071917
    0 - Front Left
    1 - Front Right
    Time per period = 3.071762
    0 - Front Left
    1 - Front Right
    ^C (etc. etc. etc.)

    Do these mean something relevant?

    KEA.

  7. #6
    Linux Engineer Freston's Avatar
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    This is mine (it's not exectly alike, seems your is newer
    Code:
    00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller
     (rev 03)
            Subsystem: COMPAL Electronics Inc Unknown device 0026
            Flags: bus master, fast devsel, latency 0, IRQ 23
            Memory at f8400000 (64-bit, non-prefetchable) [size=16K]
            Capabilities: [50] Power Management version 2
            Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
            Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
            Kernel driver in use: HDA Intel
            Kernel modules: snd-hda-intel
    I had some issues with mine in the pre-ALSA-1.0.15 era. I use ALSA-1.0.15 atm on Slackware 12.1 though and it works.

    What happens when you run `alsaconf`?
    You can get it to safe error messages, in fact, do that and post them here
    Code:
    alsaconf 2> alsaerrors
    cat alsaerrors
    Post here


    EDIT:
    Quote Originally Posted by kea
    Do these mean something relevant?
    You where supposed to hear a lady say: front-left front-right etc etc but I take it you didn't hear anything?
    Can't tell an OS by it's GUI

  8. #7
    kea
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    Alsaconf works interactive, without any error message (redirected error file has 0 bytes). In step 'sound card selection' it lists the hda-intel and a list of possible legacy ISA cards (which I don't have).

    After I have selected 'hda-intel' alsaconf says that the sound driver is configured, an runs alsasount init script and finally 'Now ALSA is ready to use".

    KEA.

  9. #8
    Linux Engineer Freston's Avatar
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    Hmmmmm, looks like a false positive on the side of ALSA here.


    If I where you, I'd upgrade to the latest ALSA-1.0.20 [click]

    You don't have to install all packages, but at least upgrade alsa-driver and alsa-lib.
    Can't tell an OS by it's GUI

  10. #9
    Just Joined! mingdao's Avatar
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    Run this script bulletproof.servebeer.com/alsa/scripts/alsa-info.sh and post the link to it's ouput. It will automatically post it to pastebin.

  11. #10
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    I think this is an issue with some of these INTEL audio cards and linux
    I have an hp laptop with the same card

    00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)

    I don't get any sound at all (not just in slackware 12.2 but in any linux live I tried).
    I tried to build newer kernels (up to 2.6.30.1) and it's still silent.

    I just keep hoping there'll be a fix in either alsa or the kernel.

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