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For the best part of the last year, I have an annoying problem with kernel updates breaking audio.
one update will break audio - message flashes by, too fast to read, as as xdm starts up but is never logged anywhere that I can find.
the next kernel update fixes the problem and the following update breaks it again and so on.
$ lsmod | grep -i snd
snd_hda_codec_realtek 275887 1
snd_seq_dummy 1431 0
snd_seq_oss 28760 0
snd_seq_midi_event 5436 1 snd_seq_oss
snd_seq 50082 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 5297 3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 39221 0
snd_mixer_oss 17106 1 snd_pcm_oss
snd_hda_intel 22285 1
snd_hda_codec 79384 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 6110 1 snd_hda_codec
snd_pcm 71921 4 cx88_alsa,snd_pcm_oss,snd_hda_intel,snd_hda_codec
snd_timer 19265 2 snd_seq,snd_pcm
snd 57562 16 cx88_alsa,snd_hda_codec_realtek,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore 5969 1 snd
snd_page_alloc 7249 2 snd_hda_intel,snd_pcm
[mick@cave ~]$
from dmesg.log
HDA Intel 0000:00:1b.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
HDA Intel 0000:00:1b.0: irq 41 for MSI/MSI-X
HDA Intel 0000:00:1b.0: setting latency timer to 64
cx88_audio 0000:03:01.1: PCI INT A -> GSI 19 (level, low) -> IRQ 19
cx88[0]/1: CX88x/0: ALSA support for cx2388x boards
$ lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
03:01.0 Multimedia video controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)
03:01.1 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [Audio Port] (rev 05)
03:01.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port] (rev 05)
current broken kernel
$ uname -a
Linux cave 2.6.36-ARCH #1 SMP PREEMPT Fri Dec 10 20:32:37 CET 2010 x86_64 Intel(R) Core(TM)2 Duo CPU E4600 @ 2.40GHz GenuineIntel GNU/Linux
Can anyone point me towards a solution to this issue please
mik
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