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Thread: sound only in left speaker after kernel update

  1. #1
    Join Date
    May 2013
    Beans
    2

    sound only in left speaker after kernel update

    Hi all,


    I'm using Kubuntu 12.04.1 (precise pangolin) 32-bit, a few days ago I made a kernel update from 3.2.0-31-generic-pae to 3.2.0-40-generic-pae and today to 3.2.0-41-generic-pae (in a struggle to repair sound). Since the update, only the left front speaker works, the right doesn't (it used to). Tested both in "Phonon-KDE control module" and Konsole ("speaker-test -c 2").
    I tried the following

    https://docs.google.com/document/d/1...h.x2veorvxyqxq

    and

    https://help.ubuntu.com/community/So...otingProcedure

    but that didn't help.

    aplay outputs:

    Code:
    $ aplay -l
    **** List of PLAYBACK Hardware Devices ****
    card 0: Intel [HDA Intel], device 0: ALC883 Analog [ALC883 Analog]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 0: Intel [HDA Intel], device 1: ALC883 Digital [ALC883 Digital]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    $ aplay -L
    null
        Discard all samples (playback) or generate zero samples (capture)
    pulse
        PulseAudio Sound Server
    default
        Playback/recording through the PulseAudio sound server
    sysdefault:CARD=Intel
        HDA Intel, ALC883 Analog
        Default Audio Device
    front:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        Front speakers
    surround40:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        4.0 Surround output to Front and Rear speakers
    surround41:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        4.1 Surround output to Front, Rear and Subwoofer speakers
    surround50:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        5.0 Surround output to Front, Center and Rear speakers
    surround51:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        5.1 Surround output to Front, Center, Rear and Subwoofer speakers
    surround71:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
    iec958:CARD=Intel,DEV=0
        HDA Intel, ALC883 Digital
        IEC958 (S/PDIF) Digital Audio Output
    dmix:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        Direct sample mixing device
    dmix:CARD=Intel,DEV=1
        HDA Intel, ALC883 Digital
        Direct sample mixing device
    dsnoop:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        Direct sample snooping device
    dsnoop:CARD=Intel,DEV=1
        HDA Intel, ALC883 Digital
        Direct sample snooping device
    hw:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        Direct hardware device without any conversions
    hw:CARD=Intel,DEV=1
        HDA Intel, ALC883 Digital
        Direct hardware device without any conversions
    plughw:CARD=Intel,DEV=0
        HDA Intel, ALC883 Analog
        Hardware device with all software conversions
    plughw:CARD=Intel,DEV=1
        HDA Intel, ALC883 Digital
        Hardware device with all software conversions
    lspci:

    Code:
    $ lspci -nn
    00:00.0 Host bridge [0600]: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub [8086:2770] (rev 02)
    00:01.0 PCI bridge [0604]: Intel Corporation 82945G/GZ/P/PL PCI Express Root Port [8086:2771] (rev 02)
    00:1b.0 Audio device [0403]: Intel Corporation N10/ICH 7 Family High Definition Audio Controller [8086:27d8] (rev 01)
    00:1c.0 PCI bridge [0604]: Intel Corporation N10/ICH 7 Family PCI Express Port 1 [8086:27d0] (rev 01)
    00:1c.1 PCI bridge [0604]: Intel Corporation N10/ICH 7 Family PCI Express Port 2 [8086:27d2] (rev 01)
    00:1d.0 USB controller [0c03]: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 [8086:27c8] (rev 01)
    00:1d.1 USB controller [0c03]: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 [8086:27c9] (rev 01)
    00:1d.2 USB controller [0c03]: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 [8086:27ca] (rev 01)
    00:1d.3 USB controller [0c03]: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 [8086:27cb] (rev 01)
    00:1d.7 USB controller [0c03]: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller [8086:27cc] (rev 01)
    00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev e1)
    00:1f.0 ISA bridge [0601]: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge [8086:27b8] (rev 01)
    00:1f.2 IDE interface [0101]: Intel Corporation N10/ICH7 Family SATA Controller [IDE mode] [8086:27c0] (rev 01)
    00:1f.3 SMBus [0c05]: Intel Corporation N10/ICH 7 Family SMBus Controller [8086:27da] (rev 01)
    01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI RV370 [Radeon X550] [1002:5b63]
    01:00.1 Display controller [0380]: Advanced Micro Devices [AMD] nee ATI RV370 secondary [Sapphire X550 Silent] [1002:5b73]
    03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 01)
    amixer:

    Code:
    $ amixer
    Simple mixer control 'Master',0
      Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
      Playback channels: Mono
      Limits: Playback 0 - 31
      Mono: Playback 17 [55%] [-21.00dB] [on]
    Simple mixer control 'Headphone',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 31 [100%] [0.00dB] [on]
      Front Right: Playback 31 [100%] [0.00dB] [on]
    Simple mixer control 'PCM',0
      Capabilities: pvolume penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 255
      Mono:
      Front Left: Playback 255 [100%] [0.00dB]
      Front Right: Playback 255 [100%] [0.00dB]
    Simple mixer control 'Front',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 31 [100%] [0.00dB] [on]
      Front Right: Playback 31 [100%] [0.00dB] [on]
    Simple mixer control 'Front Mic',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 31 [100%] [12.00dB] [on]
      Front Right: Playback 31 [100%] [12.00dB] [on]
    Simple mixer control 'Front Mic Boost',0
      Capabilities: volume penum
      Playback channels: Front Left - Front Right
      Capture channels: Front Left - Front Right
      Limits: 0 - 3
      Front Left: 0 [0%] [0.00dB]
      Front Right: 0 [0%] [0.00dB]
    Simple mixer control 'Surround',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 31 [100%] [0.00dB] [on]
      Front Right: Playback 31 [100%] [0.00dB] [on]
    Simple mixer control 'Center',0
      Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
      Playback channels: Mono
      Limits: Playback 0 - 31
      Mono: Playback 31 [100%] [0.00dB] [on]
    Simple mixer control 'LFE',0
      Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
      Playback channels: Mono
      Limits: Playback 0 - 31
      Mono: Playback 31 [100%] [0.00dB] [on]
    Simple mixer control 'Line',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 0 [0%] [-34.50dB] [off]
      Front Right: Playback 0 [0%] [-34.50dB] [off]
    Simple mixer control 'Line Boost',0
      Capabilities: volume penum
      Playback channels: Front Left - Front Right
      Capture channels: Front Left - Front Right
      Limits: 0 - 3
      Front Left: 0 [0%] [0.00dB]
      Front Right: 0 [0%] [0.00dB]
    Simple mixer control 'CD',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 0 [0%] [-34.50dB] [off]
      Front Right: Playback 0 [0%] [-34.50dB] [off]
    Simple mixer control 'IEC958',0
      Capabilities: pswitch pswitch-joined cswitch cswitch-joined penum
      Playback channels: Mono
      Capture channels: Mono
      Mono: Playback [on] Capture [off]
    Simple mixer control 'IEC958 Default PCM',0
      Capabilities: pswitch pswitch-joined penum
      Playback channels: Mono
      Mono: Playback [on]
    Simple mixer control 'Beep',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 0 [0%] [-34.50dB] [off]
      Front Right: Playback 0 [0%] [-34.50dB] [off]
    Simple mixer control 'Capture',0
      Capabilities: cvolume cswitch penum
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 31
      Front Left: Capture 16 [52%] [12.00dB] [on]
      Front Right: Capture 16 [52%] [12.00dB] [on]
    Simple mixer control 'Capture',1
      Capabilities: cvolume cswitch penum
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 31
      Front Left: Capture 0 [0%] [-12.00dB] [off]
      Front Right: Capture 0 [0%] [-12.00dB] [off]
    Simple mixer control 'Auto-Mute Mode',0
      Capabilities: enum
      Items: 'Disabled' 'Enabled'
      Item0: 'Enabled'
    Simple mixer control 'Channel Mode',0
      Capabilities: enum
      Items: '2ch' '4ch' '6ch'
      Item0: '2ch'
    Simple mixer control 'Digital',0
      Capabilities: cvolume penum
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 120
      Front Left: Capture 60 [50%] [0.00dB]
      Front Right: Capture 60 [50%] [0.00dB]
    Simple mixer control 'Input Source',0
      Capabilities: cenum
      Items: 'Rear Mic' 'Front Mic' 'Line' 'CD'
      Item0: 'Front Mic'
    Simple mixer control 'Input Source',1
      Capabilities: cenum
      Items: 'Rear Mic' 'Front Mic' 'Line' 'CD'
      Item0: 'Rear Mic'
    Simple mixer control 'Rear Mic',0
      Capabilities: pvolume pswitch penum
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 0 [0%] [-34.50dB] [off]
      Front Right: Playback 0 [0%] [-34.50dB] [off]
    Simple mixer control 'Rear Mic Boost',0
      Capabilities: volume penum
      Playback channels: Front Left - Front Right
      Capture channels: Front Left - Front Right
      Limits: 0 - 3
      Front Left: 0 [0%] [0.00dB]
      Front Right: 0 [0%] [0.00dB]
    lsmod:

    Code:
    $ lsmod
    Module                  Size  Used by
    rfcomm                 38139  0 
    snd_hda_codec_realtek    41109  1 
    bnep                   17830  2 
    ppdev                  12849  0 
    bluetooth             158479  10 rfcomm,bnep
    snd_hda_intel          38126  3 
    snd_hda_codec         164191  2 snd_hda_codec_realtek,snd_hda_intel
    binfmt_misc            17292  1 
    snd_hwdep              13276  1 snd_hda_codec
    snd_pcm                80916  2 snd_hda_intel,snd_hda_codec
    snd_seq_midi           13132  0 
    ext2                   67987  1 
    snd_rawmidi            25424  1 snd_seq_midi
    serio_raw              13027  0 
    joydev                 17393  0 
    snd_seq_midi_event     14475  1 snd_seq_midi
    snd_seq                51592  2 snd_seq_midi,snd_seq_midi_event
    snd_timer              28931  2 snd_pcm,snd_seq
    snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq
    parport_pc             32114  1 
    snd                    62218  15 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
    mac_hid                13077  0 
    soundcore              14635  1 snd
    snd_page_alloc         14108  2 snd_hda_intel,snd_pcm
    lp                     17455  0 
    parport                40930  3 ppdev,parport_pc,lp
    usbhid                 41937  0 
    hid                    77428  1 usbhid
    radeon                738016  3 
    floppy                 60184  0 
    r8169                  56368  0 
    ttm                    65344  1 radeon
    drm_kms_helper         45466  1 radeon                                                                               
    drm                   197641  5 radeon,ttm,drm_kms_helper                                                            
    i2c_algo_bit           13199  1 radeon
    The content of some config files:

    Code:
    $ cat /etc/modprobe.d/alsa-base.conf
    # autoloader aliases
    install sound-slot-0 /sbin/modprobe snd-card-0
    install sound-slot-1 /sbin/modprobe snd-card-1
    install sound-slot-2 /sbin/modprobe snd-card-2
    install sound-slot-3 /sbin/modprobe snd-card-3
    install sound-slot-4 /sbin/modprobe snd-card-4
    install sound-slot-5 /sbin/modprobe snd-card-5
    install sound-slot-6 /sbin/modprobe snd-card-6
    install sound-slot-7 /sbin/modprobe snd-card-7
    
    # Cause optional modules to be loaded above generic modules
    install snd /sbin/modprobe --ignore-install snd $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-ioctl32 ; /sbin/modprobe --quiet --use-blacklist snd-seq ; }
    #
    # Workaround at bug #499695 (reverted in Ubuntu see LP #319505)
    install snd-pcm /sbin/modprobe --ignore-install snd-pcm $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-pcm-oss ; : ; }
    install snd-mixer /sbin/modprobe --ignore-install snd-mixer $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-mixer-oss ; : ; }
    install snd-seq /sbin/modprobe --ignore-install snd-seq $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; /sbin/modprobe --quiet --use-blacklist snd-seq-oss ; : ; }
    #
    install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
    # Cause optional modules to be loaded above sound card driver modules
    install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-emu10k1-synth ; }
    install snd-via82xx /sbin/modprobe --ignore-install snd-via82xx $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq ; }
    
    # Load saa7134-alsa instead of saa7134 (which gets dragged in by it anyway)
    install saa7134 /sbin/modprobe --ignore-install saa7134 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist saa7134-alsa ; : ; }
    # Prevent abnormal drivers from grabbing index 0
    options bt87x index=-2
    options cx88_alsa index=-2
    options saa7134-alsa index=-2
    options snd-atiixp-modem index=-2
    options snd-intel8x0m index=-2
    options snd-via82xx-modem index=-2
    options snd-usb-audio index=-2
    options snd-usb-caiaq index=-2
    options snd-usb-ua101 index=-2
    options snd-usb-us122l index=-2
    options snd-usb-usx2y index=-2
    # Ubuntu #62691, enable MPU for snd-cmipci
    options snd-cmipci mpu_port=0x330 fm_port=0x388
    # Keep snd-pcsp from being loaded as first soundcard
    options snd-pcsp index=-2
    # Keep snd-usb-audio from beeing loaded as first soundcard
    options snd-usb-audio index=-2
    
    $ cat /etc/asound.conf 
    pcm.!default {
    
         type plug slave.pcm {
    
               type hw card 0 device 0
    
         }
    }
    I created this /etc/asound.conf when trying to solve the problem but that didn't change anything.

    The content of some proc files:

    Code:
    $ cat /proc/asound/cards
     0 [Intel          ]: HDA-Intel - HDA Intel
                          HDA Intel at 0xe4000000 irq 45
    $ cat /proc/asound/devices 
      1:        : sequencer
      2: [ 0- 2]: digital audio capture
      3: [ 0- 1]: digital audio playback
      4: [ 0- 1]: digital audio capture
      5: [ 0- 0]: digital audio playback
      6: [ 0- 0]: digital audio capture
      7: [ 0- 2]: hardware dependent
      8: [ 0]   : control
     33:        : timer
    $ cat /proc/asound/hwdep 
    00-02: HDA Codec 2
    $ cat /proc/asound/modules
     0 snd_hda_intel
    $ cat /proc/asound/pcm
    00-00: ALC883 Analog : ALC883 Analog : playback 1 : capture 1
    00-01: ALC883 Digital : ALC883 Digital : playback 1 : capture 1
    00-02: ALC883 Alt Analog : ALC883 Alt Analog : capture 1
    $ cat /proc/asound/timers
    G0: system timer : 4000.000us (10000000 ticks)
    P0-0-0: PCM playback 0-0-0 : SLAVE
    P0-0-1: PCM capture 0-0-1 : SLAVE
    P0-1-0: PCM playback 0-1-0 : SLAVE
    P0-1-1: PCM capture 0-1-1 : SLAVE
    P0-2-1: PCM capture 0-2-1 : SLAVE
    $ cat /proc/asound/version
    Advanced Linux Sound Architecture Driver Version 1.0.24.

    Thank you for sugestions.
    Last edited by admstandards; May 1st, 2013 at 09:50 PM. Reason: a typo on my part

  2. #2
    Join Date
    May 2013
    Beans
    2

    Re: sound only in left speaker after kernel update

    Impossible as it may seem, this was a speaker failure. I checked by plugging the speakers to some other comp and other pair of speakers to box with Kubuntu. The time correlation of speaker failure and the update was amazing. Thank for your time to whom it may concern...

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