No sound after video card replaced (AMD Radeon HD 7770)

Question

Issue: no sound

System:

Dual boot
- Windows 7 (sda)
- Ubuntu 12.04 (sdb)
2 harddrives
Dell XPS 730
Video card: AMD Radeo HD 7770 Diamond Multimedia
Sound card: Creative Labs SB X-Fi

Additional info:

My sound used to work.
Then, my old video card (NVIDIA geforce 280) died.
I bought and installed a new video card: Radeon HD 7770.
After this, my sound no longer worked in ubuntu (Win7 audio still works).
Everything else in ubuntu, such as video, works fine.
I suspect it has something to do with the fact that the Radeon card includes sound capability.

Problem Details:

If I click on System Settings -> Sound, the panel freezes and stops responding indefinitely.
The sound volume icon at the top of the screen (by the clock) shows 3 dashes beside it "---", and an empty drop-down box shows if I click on it.
(Possibly related to 1.) When I reboot my machine, I get the message: "gnome settings daemon not responding". I have to force the reboot.
I reinstalled ubunbu (perserving my home directory) and the problem persists.

Diagnostics info:

Following procedure outlined here: https://help.ubuntu.com/community/SoundTroubleshooting

The following is a list of terminal commands, and their output:

$ aplay -l

List of PLAYBACK Hardware Devices

There is no listing beyond that, and the command freezes until I hit control-c

$ sudo aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: XFi [Creative X-Fi], device 0: ctxfi [Front/WaveIn]
  Subdevices: 256/256
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  ... repeats from #4 to #255
  Subdevice #255: subdevice #255
card 0: XFi [Creative X-Fi], device 1: ctxfi [Surround]
  Subdevices: 256/256
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  ... repeats from #4 to #255
  Subdevice #255: subdevice #255
card 0: XFi [Creative X-Fi], device 2: ctxfi [Center/LFE]
  Subdevices: 256/256
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  ... repeats from #4 to #255
  Subdevice #255: subdevice #255
card 0: XFi [Creative X-Fi], device 4: ctxfi [IEC958 Non-audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 2: Generic [HD-Audio Generic], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: Generic [HD-Audio Generic], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: Generic [HD-Audio Generic], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

$ lspci -v | grep -A7 -i "audio"

00:0f.1 Audio device: NVIDIA Corporation MCP55 High Definition Audio
(rev a2)  Subsystem: Dell Device 0224     Flags: bus master, 66MHz, fast
devsel, latency 0, IRQ 23     Memory at dfff0000 (32-bit,
non-prefetchable) [size=16K]  Capabilities: <access denied>   Kernel
driver in use: snd_hda_intel  Kernel modules: snd-hda-intel

-- 01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Device aab0
Subsystem: Diamond Multimedia Systems Device aab0     Flags: bus
master, fast devsel, latency 0, IRQ 43    Memory at dfefc000 (64-bit,
non-prefetchable) [size=16K]  Capabilities: <access denied>   Kernel
driver in use: snd_hda_intel  Kernel modules: snd-hda-intel

-- 03:0a.0 Audio device: Creative Labs SB X-Fi    Subsystem: Creative Labs Device 6002
  Flags: bus master, medium devsel, latency
  32, IRQ 18
Memory at dbff4000 (32-bit, non-prefetchable) [size=16K]  Memory at
dbc00000 (64-bit, non-prefetchable) [size=2M]     Memory at d4000000
(64-bit, non-prefetchable) [size=64M]     I/O ports at 8c00 [size=32]
  Capabilities: <access denied>

Notice the Diamond Multimedia Systems Device - that seems to be my video card sound. My video card is Diamond multimedia.

Also there's the weird NVIDIA device in there. That must either be a remnant of my now removed NVIDIA graphics card, or else some kind of on-board thing. Not sure which.

**UPDATE** I disabled my onboard sound via the BIOS settings, 
and now only 2 cards appear in this list.  The NVIDIA one is gone.

$ killall pulseaudio

This allows me to open system settings -> sound.
But the "Test Sound" button makes no sound
And the output volume + mute controls are greyed / disabled at 0 volume.
It also allows me to click on the sound control in the "task bar" (beside the clock), and a volume slider drops down, but it is disabled / greyed at 0 volume.
```
$ find /lib/modules/uname -r | grep snd
```




/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-88pm860x.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320aic3x.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8900.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8978.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320dac33.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm9090.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-sta32x.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-max98088.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-max9850.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-rt5631.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8903.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8580.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8523.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-max9877.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ads117x.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8955.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8804.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-sgtl5000.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8750.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm2000.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320aic32x4.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4642.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ad193x.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8753.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4535.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8985.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8350.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-dfbmcs320.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-cs42l51.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320aic26.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8737.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-uda1380.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8776.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8995.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tpa6130a2.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8727.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm5100.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8991.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8510.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-jz4740-codec.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8400.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-lm4857.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8960.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-alc5623.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-cs4270.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320aic23.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8993.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8961.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8940.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-uda134x.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ad1836.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8994.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8782.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-cs4271.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8974.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8983.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8962.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4641.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm-hubs.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8971.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8996.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wl1273.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-adav80x.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-spdif.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-pcm3008.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-cx20442.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4671.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8711.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ad73311.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-max98095.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm9081.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8741.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm1250-ev1.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8988.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-adau1373.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8731.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-l3.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ssm2602.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-da7210.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4104.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8904.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8728.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8770.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8990.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/snd-soc-core.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/synth/emux/snd-emux-synth.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/synth/snd-util-mem.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-hrtimer.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-hwdep.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-pcm.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-rawmidi.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/oss/snd-mixer-oss.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-page-alloc.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-midi.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-dummy.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-virmidi.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-device.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-midi-event.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-midi-emul.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-timer.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/pcmcia/pdaudiocf/snd-pdaudiocf.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/pcmcia/vx/snd-vxpocket.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/6fire/snd-usb-6fire.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/snd-usbmidi-lib.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/caiaq/snd-usb-caiaq.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/usx2y/snd-usb-usx2y.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/usx2y/snd-usb-us122l.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/snd-usb-audio.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/misc/snd-ua101.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/opl3/snd-opl3-synth.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/opl3/snd-opl3-lib.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/opl4/snd-opl4-lib.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/opl4/snd-opl4-synth.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-portman2x4.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-serial-u16550.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-mts64.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-mtpav.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/mpu401/snd-mpu401.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/mpu401/snd-mpu401-uart.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/vx/snd-vx-lib.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-dummy.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-aloop.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/pcsp/snd-pcsp.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-virmidi.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/firewire/snd-firewire-lib.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/firewire/snd-firewire-speakers.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/firewire/snd-isight.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/snd-tea6330t.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-tea575x-tuner.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-ak4113.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-pt2258.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-ak4117.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-ak4xxx-adda.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-ak4114.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/snd-cs8427.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/snd-i2c.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/emu10k1/snd-emu10k1-synth.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/emu10k1/snd-emu10k1.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/emu10k1/snd-emu10k1x.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/korg1212/snd-korg1212.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/au88x0/snd-au8830.ko
/lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/au88x0/snd-au8820.ko

... and 100+ more (deleted to keep underneath the post limit)



$ ps -ef | grep pulseaudio 


  lightdm   1698  1659  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  lightdm   1700  1698  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  lightdm   1701  1700  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      1820  1800  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      1822  1820  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      1823  1822  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      1956     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      1979  1746  0 Nov29 ?        00:00:00 /bin/sh /usr/bin/start-pulseaudio-x11
  
  sean      1981  1980  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2289     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2330     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2339     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2348     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2357     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2374     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2387     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2410     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2450     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2489     1  0 Nov29 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
  
  sean      2627  2571  0 00:39 pts/1    00:00:00 grep --color=auto pulseaudio
  
  (I'm logged in as "sean")


Update Info:  Nov 30th

Here's a sequence of terminal commands and output performed after a reboot.

$ ps -ef | grep pulseaudio 

lightdm   1717  1681  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

lightdm   1719  1717  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

lightdm   1720  1719  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      1840  1819  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      1842  1840  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      1843  1842  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      1935  1765  0 12:20 ?        00:00:00 /bin/sh /usr/bin/start-pulseaudio-x11

sean      1952  1938  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      1984  1969  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      2427  2282  0 12:21 pts/2    00:00:00 grep --color=auto pulseaudio


$ pulseaudio -k; killall -KILL pulseaudio

pulseaudio(1717): Operation not permitted

pulseaudio(1719): Operation not permitted

pulseaudio(1720): Operation not permitted


$ ps -ef | grep pulseaudio 

lightdm   1717  1681  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

lightdm   1719  1717  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

lightdm   1720  1719  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      1843     1  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      2449  2282  0 12:22 pts/2    00:00:00 grep --color=auto pulseaudio


$ sudo pulseaudio -k; killall -KILL pulseaudio

[sudo] password for sean: 

E: [pulseaudio] core-util.c: Home directory /home/sean not ours.

E: [pulseaudio] main.c: Failed to kill daemon: Permission denied

pulseaudio(1717): Operation not permitted

pulseaudio(1719): Operation not permitted

pulseaudio(1720): Operation not permitted


$ ps -ef | grep pulseaudio

lightdm   1717  1681  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

lightdm   1719  1717  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

lightdm   1720  1719  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      1843     1  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      2475  2282  0 12:23 pts/2    00:00:00 grep --color=auto pulseaudio


(can't seem to get that formatted right, but it's the same as above - running as sudo didn't kill extra processes)

$ pavucontrol


this opens a window now (without the killall command above, it would just hang)
but the window just says "Establishing connection to PulseAudio. Please wait..." indefinitely


Also, after the killall command is executed:


Now the volume control (by the clock) works 
I get a drop-down with a volume slider, Rhythmbox, and Sound Settings...
I can now access sound settings without freezing up the window, either from

System Settings... -> Sound, or,
the volume control drop-down above.

But, in the sound settings window...

"Output volume slider" is disabled/greyed
"Test Sound" button does nothing
"Play sound through" box is empty
"Record sound through" box is empty




    $ sudo pulseaudio -k; sudo killall -KILL pulseaudio

E: [pulseaudio] core-util.c: Home directory /home/sean not ours.
E: [pulseaudio] main.c: Failed to kill daemon: Permission denied


$ ps -ef | grep pulseaudio

lightdm   1720     1  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      1843     1  0 12:20 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog

sean      6233  6165  0 18:20 pts/5    00:00:00 grep --color=auto pulseaudio`

You seem to have 3 sound cards... maybe you should try using only one (pavucontrol should enable you to do so). — MiJyn, Nov 29, 2012 at 18:53
Thanks for the suggestion. I installed pavucontrol, but when I try to launch it (either from the side-bar icon or from a terminal), it hangs, and no window appears. I can see a "pavucontrol" process using ps -a, but there's no window. Whatever is causing my system settings -> sound window to hang seems to be affecting pavucontrol too. — Sean, Nov 29, 2012 at 20:43
Does this return anything? And if so could you add the output to the post? ps -ef | grep pulseaudio — MiJyn, Nov 30, 2012 at 5:40
Done - added to the end of the top post. Quite a bit of output from that. — Sean, Nov 30, 2012 at 6:54
I think I have an idea of the problem... try running this: pulseaudio -k; killall -KILL pulseaudio — MiJyn, Nov 30, 2012 at 16:40

user1798721 · Accepted Answer · 2012-12-07 06:32:41Z

I had the same problem on my HP Envy 15 Laptop that also has a Radeon 7000 Mobile series card. This post is a partial solution to your problem in that, at least, your system will be running, but it will disable ALL usb sound-devices.

In /etc/modprobe.d/alsa-base.conf, add this line to the end of the file:

blacklist snd-usb-audio

This solution lets me us my laptop very nicely now w/ AMD video acceleration, but w/o USB sound devices. A better solution would be some way to selectively disable USB devices on the AMD Radeon card, since the driver seems to be broken.

farhan · Accepted Answer · 2012-12-03 04:01:54Z

0

you can uninstall and reinstall the gnome-sound-applet it may help

open youe terminal and type

  sudo apt-get install --reinstall gnome-sound-applet

it will uninstall the gnome-sound-applet and reinstall it .

answered Dec 3, 2012 at 4:01

farhan

3521 silver badge13 bronze badges

1

Thanks for posting farhan. When I type this command, here's what happens: $ sudo apt-get install --reinstall gnome-sound-applet Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package gnome-sound-applet I tried to search for gnome-sound-applet at this site: packages.ubuntu.com and I couldn't find a hit.
– Sean
Dec 3, 2012 at 4:30

Add a comment |

Radu Rădeanu · Accepted Answer · 2013-05-08 20:32:05Z

I had this identical problem. I worked around it by adding the line:

blacklist snd-hda-codec-hdmi

to /etc/modprobe.d/alsa-base.conf. This is similar to user1798721's solution except that the problem is the HDMI sound device, apparently, not a USB sound device.

Of course, this disables the HDMI sound output. In my case, I am outputting the sound via SPDIF digital from the motherboard sound device to my sound system and only using HDMI for the video, so there is no loss. But it would be nice to get this fixed. Older kernel versions do not seem to have this problem on the same hardware.

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