Ничего не переустанавливал. Стояла чистая Debian 8 с оконным менеджером XFCE. Даже не обновлял ни разу за 3 месяца. Звук пропал внезапно. В Audio Mixer пропали все ползунки громкости, а в списке звуковых карт вместо двух осталась одна http://i.imgur.com/xEzBV29.jpg
Выхлопы:
# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version k3.16.0-4-amd64.
# lspci | grep [aA]udio
01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)
# lsmod
Module Size Used by
ctr 12927 2
ccm 17577 2
nfsd 263032 2
auth_rpcgss 51211 1 nfsd
oid_registry 12419 1 auth_rpcgss
nfs_acl 12511 1 nfsd
nfs 188136 0
lockd 83389 2 nfs,nfsd
fscache 45542 1 nfs
sunrpc 237402 6 nfs,nfsd,auth_rpcgss,lockd,nfs_acl
joydev 17063 0
uvcvideo 79005 0
videobuf2_vmalloc 12816 1 uvcvideo
videobuf2_memops 12519 1 videobuf2_vmalloc
videobuf2_core 47787 1 uvcvideo
v4l2_common 12995 1 videobuf2_core
videodev 126451 3 uvcvideo,v4l2_common,videobuf2_core
media 18305 2 uvcvideo,videodev
snd_hda_codec_hdmi 45118 4
iTCO_wdt 12831 0
iTCO_vendor_support 12649 1 iTCO_wdt
nouveau 1122508 2
evdev 17445 23
psmouse 99249 0
coretemp 12820 0
serio_raw 12849 0
pcspkr 12595 0
mxm_wmi 12515 1 nouveau
wmi 17339 2 mxm_wmi,nouveau
snd_hda_intel 26327 3
snd_hda_controller 26646 1 snd_hda_intel
arc4 12536 2
samsung_laptop 13662 0
snd_hda_codec 104500 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller
ath9k 90245 0
lpc_ich 20768 0
ath9k_common 21746 1 ath9k
ath9k_hw 391172 2 ath9k_common,ath9k
mfd_core 12601 1 lpc_ich
i2c_i801 16965 0
snd_hwdep 13148 1 snd_hda_codec
snd_pcm 88662 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer 26627 1 snd_pcm
ttm 77862 1 nouveau
drm_kms_helper 49210 1 nouveau
drm 249955 5 ttm,drm_kms_helper,nouveau
i2c_algo_bit 12751 1 nouveau
i2c_core 46012 7 drm,i2c_i801,drm_kms_helper,i2c_algo_bit,v4l2_common,nouveau,videodev
ath 26067 3 ath9k_common,ath9k,ath9k_hw
snd 65244 12 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec,snd_hda_intel
mac80211 474277 1 ath9k
cfg80211 405538 4 ath,ath9k_common,ath9k,mac80211
tpm_tis 17231 0
tpm 31511 1 tpm_tis
soundcore 13026 2 snd,snd_hda_codec
ac 12715 0
rfkill 18867 3 cfg80211,samsung_laptop
video 18096 2 samsung_laptop,nouveau
battery 13356 0
shpchp 31121 0
button 12944 1 nouveau
acpi_cpufreq 17218 1
processor 28221 3 acpi_cpufreq
fuse 83350 1
parport_pc 26300 0
ppdev 16782 0
lp 17074 0
parport 35749 3 lp,ppdev,parport_pc
autofs4 35529 2
ext4 473802 2
crc16 12343 1 ext4
mbcache 17171 1 ext4
jbd2 82522 1 ext4
sd_mod 44356 4
crc_t10dif 12431 1 sd_mod
crct10dif_generic 12581 1
sg 29973 0
sr_mod 21903 0
cdrom 47424 1 sr_mod
crct10dif_common 12356 2 crct10dif_generic,crc_t10dif
ahci 33334 3
libahci 27158 1 ahci
libata 177508 2 ahci,libahci
scsi_mod 191405 4 sg,libata,sd_mod,sr_mod
sky2 56751 0
thermal 17559 0
fan 12681 0
thermal_sys 27642 4 fan,video,thermal,processor
ehci_pci 12512 0
uhci_hcd 43499 0
ehci_hcd 69837 1 ehci_pci
usbcore 195468 4 uhci_hcd,uvcvideo,ehci_hcd,ehci_pci
usb_common 12440 1 usbcore
# cat /proc/asound/cards
0 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xcdefc000 irq 16
# cat /proc/asound/devices
2: [ 0] : control
3: [ 0- 3]: digital audio playback
4: [ 0- 7]: digital audio playback
5: [ 0- 8]: digital audio playback
6: [ 0- 9]: digital audio playback
7: [ 0- 0]: hardware dependent
8: [ 0- 1]: hardware dependent
9: [ 0- 2]: hardware dependent
10: [ 0- 3]: hardware dependent
33: : timer
# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
# aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
default
Playback/recording through the PulseAudio sound server
hdmi:CARD=NVidia,DEV=0
HDA NVidia, HDMI 0
HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
HDA NVidia, HDMI 0
HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
HDA NVidia, HDMI 0
HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
HDMI Audio Output
dmix:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct sample mixing device
dmix:CARD=NVidia,DEV=7
HDA NVidia, HDMI 0
Direct sample mixing device
dmix:CARD=NVidia,DEV=8
HDA NVidia, HDMI 0
Direct sample mixing device
dmix:CARD=NVidia,DEV=9
HDA NVidia, HDMI 0
Direct sample mixing device
dsnoop:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=7
HDA NVidia, HDMI 0
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=8
HDA NVidia, HDMI 0
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=9
HDA NVidia, HDMI 0
Direct sample snooping device
hw:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=7
HDA NVidia, HDMI 0
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=8
HDA NVidia, HDMI 0
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=9
HDA NVidia, HDMI 0
Direct hardware device without any conversions
plughw:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=7
HDA NVidia, HDMI 0
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=8
HDA NVidia, HDMI 0
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=9
HDA NVidia, HDMI 0
Hardware device with all software conversions
# amixer
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 65536
Mono:
Front Left: Playback 76022 [116%] [on]
Front Right: Playback 76022 [116%] [on]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch cswitch-joined
Capture channels: Front Left - Front Right
Limits: Capture 0 - 65536
Front Left: Capture 65536 [100%] [on]
Front Right: Capture 65536 [100%] [on]
# ls -l /dev/snd/
итого 0
drwxr-xr-x 2 root root 60 мар 7 20:09 by-path
crw-rw----+ 1 root audio 116, 2 мар 7 20:09 controlC0
crw-rw----+ 1 root audio 116, 7 мар 7 20:09 hwC0D0
crw-rw----+ 1 root audio 116, 8 мар 7 20:09 hwC0D1
crw-rw----+ 1 root audio 116, 9 мар 7 20:09 hwC0D2
crw-rw----+ 1 root audio 116, 10 мар 7 20:09 hwC0D3
crw-rw----+ 1 root audio 116, 3 мар 7 20:10 pcmC0D3p
crw-rw----+ 1 root audio 116, 4 мар 7 20:10 pcmC0D7p
crw-rw----+ 1 root audio 116, 5 мар 7 20:10 pcmC0D8p
crw-rw----+ 1 root audio 116, 6 мар 7 20:10 pcmC0D9p
crw-rw----+ 1 root audio 116, 1 мар 7 20:09 seq
crw-rw----+ 1 root audio 116, 33 мар 7 20:09 timer
