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#1 2010-05-15 18:42:12

Bong
Member
Registered: 2009-02-04
Posts: 1

alsa sound disappeared between kernel 2.6.30 and 2.6.33

My last working alsa was running on kernel 2.6.30.6. Some months ago, I upgraded and the sound disappeared. Due to other programs, I now want a fully updated kernel and get 2.6.33-2-1. The alsa sound still does'nt work. I get the sound back by downgrading to 2.6.30, but other things then fails.

I'm using an LG A1 Express. As far as I can see, everything looks ok, but I don't hear any sound.

I have used alsaconf, and got expected output. Alsamixer is used to unmute and set up audio-sources.

Grateful to any suggestions!

/bong


# ls /dev/snd                                                                                                                                                                                  
by-path/  controlC0  hwC0D0  hwC0D1  pcmC0D0c  pcmC0D0p  pcmC0D1p  pcmC0D2c  seq  timer
# ls /dev/snd/by-path                                                                                                                                               
pci-0000:00:1b.0@


# lspci                                                                                                                                                                     
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
02:00.0 Ethernet controller: Agere Systems ET-131x PCI-E Ethernet Controller (rev 03)
05:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
06:00.0 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller
06:00.1 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller
06:00.3 Mass storage controller: Texas Instruments PCIxx21 Integrated FlashMedia Controller
06:00.4 SD Host controller: Texas Instruments PCI6411/6421/6611/6621/7411/7421/7611/7621 Secure Digital Controller

# lsmod |grep snd                                                                                                                                                                                 
snd_hda_codec_realtek   186046  1 
snd_seq_dummy           1067  0 
snd_hda_intel          19249  3 
snd_seq_oss            24984  0 
snd_seq_midi_event      4484  1 snd_seq_oss
snd_seq                41656  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          4349  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_hda_codec          59723  2 snd_hda_codec_realtek,snd_hda_intel
snd_pcm_oss            33442  0 
snd_mixer_oss          14356  1 snd_pcm_oss
snd_hwdep               4752  1 snd_hda_codec
snd_pcm                57767  4 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_timer              15629  3 snd_seq,snd_pcm
snd                    42562  15 snd_hda_codec_realtek,snd_hda_intel,snd_seq_oss,snd_seq,snd_seq_device,snd_hda_codec,snd_pcm_oss,snd_mixer_oss,snd_hwdep,snd_pcm,snd_timer
soundcore               5017  1 snd
snd_page_alloc          5873  2 snd_hda_intel,snd_pcm

# aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
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


# cat /etc/modprobe.d/sound.conf 
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel

# cat /etc/rc.conf|grep DAEMONS
# DAEMONS
DAEMONS=(syslog-ng netfs crond hal openntpd alsa mpd)

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#2 2010-06-12 21:05:50

davidcarvalho
Member
Registered: 2010-04-20
Posts: 21

Re: alsa sound disappeared between kernel 2.6.30 and 2.6.33

Hey Bong,
Try this http://bbs.archlinux.org/viewtopic.php?id=69178
All the best

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