alan@polytropos
2006-08-12, 08:22 AM CDT
I am suffering from seems to be a problem of epidemic proportions: soundcard is detected but no sound. Everything else seems to working just fine (a little logey at times) on my fresh install of FC5 i86_64 (a cheap custom box with Intel D351 dual core 3.2G, 2G RAM and 300G hard drive etc). I ran yum update kernel and installed the kernel-devel (for headers - my first try with FC 5 on anothe rmachine came to some grief over that...). When I run Soundcard detection there is no sound and I get the familiar "Soundcard is not detected... etc." I cranked all the levels on Volume Control and ran alsamixer (seemed okay). Here is what I found (dutifully following the instructions in the Soundcard Detection error box) in /dev/scsound.log:
lspci:
[...]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
[...]
------- lsmod --------
[...]
snd_via82xx 63337 1
gameport 50385 1 snd_via82xx
snd_ac97_codec 136089 1 snd_via82xx
snd_ac97_bus 35777 1 snd_ac97_codec
snd_seq_dummy 37061 0
snd_seq_oss 66241 0
snd_seq_midi_event 41025 1 snd_seq_oss
snd_seq 89825 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_pcm_oss 85457 0
snd_mixer_oss 50881 1 snd_pcm_oss
snd_pcm 126409 3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd_timer 59465 2 snd_seq,snd_pcm
snd_page_alloc 44497 2 snd_via82xx,snd_pcm
snd_mpu401_uart 41665 1 snd_via82xx
snd_rawmidi 61249 1 snd_mpu401_uart
snd_seq_device 42833 4 snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
snd 97129 13 snd_via82xx,snd_ac97_codec,snd_seq_oss,snd_seq,snd _pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu40 1_uart,snd_rawmidi,snd_seq_device
soundcore 44129 1 snd
i2c_viapro 42713 0
i2c_core 57409 1 i2c_viapro
via_rhine 58565 0
mii 38849 1 via_rhine
dm_snapshot 48913 0
dm_zero 35393 0
dm_mirror 54593 0
dm_mod 90257 6 dm_snapshot,dm_zero,dm_mirror
ext3 164945 2
jbd 93929 1 ext3
sata_via 42693 2
libata 94297 1 sata_via
sd_mod 51009 3
scsi_mod 181905 3 sg,libata,sd_mod
------- /etc/modprobe.conf --------
alias eth0 via-rhine
alias scsi_hostadapter sata_via
------- /etc/asound.conf --------
#Generated by system-config-soundcard, do not edit by hand
#SWCONF
#DEV 0
defaults.pcm.card 0
defaults.pcm.device 0
defaults.ctl.card 0
------- aplay -l --------
**** List of PLAYBACK Hardware Devices ****
card 0: V8237 [VIA 8237], device 0: VIA 8237 [VIA 8237]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 0: V8237 [VIA 8237], device 1: VIA 8237 [VIA 8237]
Subdevices: 1/1
Subdevice #0: subdevice #0
------- amixer --------
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [on]
Front Right: Playback 31 [100%] [on]
Simple mixer control 'Master Mono',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [off]
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [on]
Front Right: Playback 31 [100%] [on]
Simple mixer control 'Surround',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 25 [81%] [on]
Front Right: Playback 25 [81%] [on]
[...]
----------- **** -------------
[root@localhost dev]# amixer set 'PCM' unmuted
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 30 [97%] [on]
Front Right: Playback 30 [97%] [on]
[root@localhost dev]# amixer set 'PCM' 100%
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [on]
Front Right: Playback 31 [100%] [on]
I apologize for the length of this pasting - I tried to remove what seemed mostly irrelevant. I have searched for an answer online and in my various manuals ("RedHat Fedora 5 Unleashed by Paul and Andrew Hudson, and so forth) and have learned two things: this seems to be a VERY common subset of the larger issue of Linux drivers (yes I have signed the petition); and the fixes vary wildly from the trivially obvious to more serious issues with processes competing for the soundcard. I do have both KDE and Gnome installed altho in the ifrst 24 hours I have only used the latter (thanks to QT). This is a brand new machine and I would like to set it up with optimal performance - if it means rebuilding the kernel then that would be fine too... I guess...
Thanks for your help and again I apologize for the -v message.
lspci:
[...]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
[...]
------- lsmod --------
[...]
snd_via82xx 63337 1
gameport 50385 1 snd_via82xx
snd_ac97_codec 136089 1 snd_via82xx
snd_ac97_bus 35777 1 snd_ac97_codec
snd_seq_dummy 37061 0
snd_seq_oss 66241 0
snd_seq_midi_event 41025 1 snd_seq_oss
snd_seq 89825 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_pcm_oss 85457 0
snd_mixer_oss 50881 1 snd_pcm_oss
snd_pcm 126409 3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd_timer 59465 2 snd_seq,snd_pcm
snd_page_alloc 44497 2 snd_via82xx,snd_pcm
snd_mpu401_uart 41665 1 snd_via82xx
snd_rawmidi 61249 1 snd_mpu401_uart
snd_seq_device 42833 4 snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
snd 97129 13 snd_via82xx,snd_ac97_codec,snd_seq_oss,snd_seq,snd _pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu40 1_uart,snd_rawmidi,snd_seq_device
soundcore 44129 1 snd
i2c_viapro 42713 0
i2c_core 57409 1 i2c_viapro
via_rhine 58565 0
mii 38849 1 via_rhine
dm_snapshot 48913 0
dm_zero 35393 0
dm_mirror 54593 0
dm_mod 90257 6 dm_snapshot,dm_zero,dm_mirror
ext3 164945 2
jbd 93929 1 ext3
sata_via 42693 2
libata 94297 1 sata_via
sd_mod 51009 3
scsi_mod 181905 3 sg,libata,sd_mod
------- /etc/modprobe.conf --------
alias eth0 via-rhine
alias scsi_hostadapter sata_via
------- /etc/asound.conf --------
#Generated by system-config-soundcard, do not edit by hand
#SWCONF
#DEV 0
defaults.pcm.card 0
defaults.pcm.device 0
defaults.ctl.card 0
------- aplay -l --------
**** List of PLAYBACK Hardware Devices ****
card 0: V8237 [VIA 8237], device 0: VIA 8237 [VIA 8237]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 0: V8237 [VIA 8237], device 1: VIA 8237 [VIA 8237]
Subdevices: 1/1
Subdevice #0: subdevice #0
------- amixer --------
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [on]
Front Right: Playback 31 [100%] [on]
Simple mixer control 'Master Mono',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [off]
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [on]
Front Right: Playback 31 [100%] [on]
Simple mixer control 'Surround',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 25 [81%] [on]
Front Right: Playback 25 [81%] [on]
[...]
----------- **** -------------
[root@localhost dev]# amixer set 'PCM' unmuted
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 30 [97%] [on]
Front Right: Playback 30 [97%] [on]
[root@localhost dev]# amixer set 'PCM' 100%
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [on]
Front Right: Playback 31 [100%] [on]
I apologize for the length of this pasting - I tried to remove what seemed mostly irrelevant. I have searched for an answer online and in my various manuals ("RedHat Fedora 5 Unleashed by Paul and Andrew Hudson, and so forth) and have learned two things: this seems to be a VERY common subset of the larger issue of Linux drivers (yes I have signed the petition); and the fixes vary wildly from the trivially obvious to more serious issues with processes competing for the soundcard. I do have both KDE and Gnome installed altho in the ifrst 24 hours I have only used the latter (thanks to QT). This is a brand new machine and I would like to set it up with optimal performance - if it means rebuilding the kernel then that would be fine too... I guess...
Thanks for your help and again I apologize for the -v message.