Re: Latest update broke the sound.

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Wendell Nichols wrote:
I installed an update after being offline for 3 weeks. My machine is a Thinkpad t61p and after the update sound does not work. kmix will not start and kde complains that the sound devices are not available. The sound driver (snd_hda_intel) is loaded as are the other usual suspects.
Has anyone else had a similar problem?
Wendell Nichols


sound system info:
[root@bilbo wcn00]# uname -a
Linux bilbo 2.6.27.30-170.2.82.fc10.x86_64 #1 SMP Mon Aug 17 08:18:34 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

lspci -v
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) Subsystem: Lenovo ThinkPad T61 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at fe220000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Count=1/1 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 [root@bilbo wcn00]# lsmod |grep snd
snd_hda_intel         480288  1
snd_seq_dummy          11396  0
snd_seq_oss            39232  0
snd_seq_midi_event     14848  1 snd_seq_oss
snd_seq 61968 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device         15380  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss            52352  0
snd_mixer_oss          23168  2 snd_pcm_oss
snd_pcm                85768  2 snd_hda_intel,snd_pcm_oss
snd_timer              30352  2 snd_seq,snd_pcm
snd_page_alloc         16656  2 snd_hda_intel,snd_pcm
snd_hwdep              16392  1 snd_hda_intel
snd 68984 10 snd_hda_intel,snd_seq_dummy,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep
soundcore              14992  2 snd


More information:
I rebooted and noticed a popup dialog from arts:
Informational - artsmessage
Sound server informational message:
Error while initializing the sound driver:
device /dev/dsp can't be opened (Permission denied)
The sound server will continue, using the null output device.



I checked /dev/dsp /dev/mixer etc:
crw-rw---- 1 root root 14, 3 2009-09-14 09:51 /dev/dsp
crw-rw---- 1 root root 14, 0 2009-09-14 09:51 /dev/mixer

It doesn't help to change the permissions cause they get reset at boot time. Most devices are owned exclusively by the system anyway.
wcn

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