[CentOS] Audio fails on centos 5.5 sony laptop - snd-hda-intel
Rob Kampen
rkampen at kampensonline.com
Tue Jul 20 02:08:30 UTC 2010
Rob Kampen wrote:
> Hi List, been chasing my tail for the last two hours and getting
> nowhere on my wifes laptop.
> I only do updates monthly on her machine, as it is safely behind
> firewalls and only does email and browser stuff.
> I have never had audio problems on this laptop, Centos just worked
> from day one - even the wireless.
>
> It appears that the 5.5 kernels and related audio driver snd-hda-intel
> do not function.
> If I reboot into 2.6.18-164.15.1.el5.centos.plus all is well.
> $ cat /proc/asound/cards
> 0 [Intel ]: HDA-Intel - HDA Intel
> HDA Intel at 0x80000000 irq 169
> 1 [U0x46d0x804 ]: USB-Audio - USB Device 0x46d:0x804
> USB Device 0x46d:0x804 at usb-0000:00:1d.7-3,
> high speed
>
> Neither 2.6.18-194.3.1.el5.centos.plus or
> 2.6.18-194.8.1.el5.centos.plus have functioning sound.
> on these kernels I get
> $ cat /proc/asound/cards
> 0 [U0x46d0x804 ]: USB-Audio - USB Device 0x46d:0x804
> USB Device 0x46d:0x804 at usb-0000:00:1d.7-3,
> high speed
>
> yet lsmod shows
> <snip>
> snd_hda_intel 472337 0
> snd_seq_dummy 7877 0
> snd_seq_oss 32577 0
> snd_seq_midi_event 11073 1 snd_seq_oss
> snd_seq 49585 5
> snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
> snd_pcm_oss 42817 0
> snd_usb_audio 77761 2
> snd_mixer_oss 19009 1 snd_pcm_oss
> snd_pcm 72133 3 snd_hda_intel,snd_pcm_oss,snd_usb_audio
> snd_usb_lib 19137 1 snd_usb_audio
> snd_rawmidi 26561 1 snd_usb_lib
> snd_timer 24517 2 snd_seq,snd_pcm
> snd_page_alloc 14281 2 snd_hda_intel,snd_pcm
> snd_seq_device 11725 4
> snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
> snd_hwdep 12869 2 snd_hda_intel,snd_usb_audio
> snd 55749 15
> snd_hda_intel,snd_seq_oss,snd_seq,snd_pcm_oss,snd_usb_audio,snd_mixer_oss,snd_pcm,snd_rawmidi,snd_timer,snd_seq_device,snd_hwdep
>
> soundcore 11553 1 snd
>
> So I remembered the bug rh introduced with the 194 kernels and nvidia
> chipsets (not my case but I'm desperate) and added the enable_msi=0 so
> that my modprobe.conf is now
> <snip>
> options snd cards_limit=8
> alias snd-card-0 snd-hda-intel
> options snd-hda-intel index=0 enable_msi=0
>
> but it still will not work.
> <rant>
> I am getting frustrated at the retrograde steps that seem to be
> hitting kernel and 5.x upgrades lately.
> yum update used to just work, get me the latest patches and all was
> well - after all that is why I use Centos.
> </rant>
> I have tried modprobe -r to remove and reload module but to no avail.
> Anyone have any ideas as to what I try next?
> Google has not given me any ideas yet.
> TIA
>
Still no joy - I am at a loss to know what to check - if I boot a 194
kernel no sound, 164 kernel is fine - why the regression?
Same configs, same modules loaded but now no sound - what can I check to
determine problem and find a solution?
no errors in logs or dmesg
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: rkampen.vcf
Type: text/x-vcard
Size: 123 bytes
Desc: not available
URL: <http://lists.centos.org/pipermail/centos/attachments/20100719/70536301/attachment.vcf>
More information about the CentOS
mailing list