Sound hardware is detected but keyboard buttons, panel icon buttons don't work

Question

I have 64-but Ubuntu 11.10. The sound works fine, but the keyboard sound keys don't work. The sound icon on the top panel also doesn't work. Also no hardware devices & Running applications are shown in the Sound settings.

Screenshot 1:

Screenshot 2:

Results of some commands that might help:

$ lspci -v | grep -A7 -i "audio"
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
        Subsystem: Dell Device 02be
    Flags: bus master, fast devsel, latency 0, IRQ 46
    Memory at fc500000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: HDA Intel
    Kernel modules: snd-hda-intel

--
01:00.1 Audio device: ATI Technologies Inc RV710/730
    Subsystem: Dell Device 02be
    Flags: bus master, fast devsel, latency 0, IRQ 47
    Memory at fc010000 (32-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: HDA Intel
    Kernel modules: snd-hda-intel

$ cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xfc500000 irq 46
 1 [HDMI           ]: HDA-Intel - HDA ATI HDMI
                      HDA ATI HDMI at 0xfc010000 irq 47

I think some packages are missing. Any suggestions ?

Answer 1

Here is what i tried... 1. rm -rvf ~/.pulse/

Reboot

No success

1. https://help.ubuntu.com/community/SoundTroubleshootingProcedure

Run this command sudo apt-get update;sudo apt-get dist-upgrade; sudo apt-get install linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop linux-image-uname -r libasound2; sudo apt-get -y --reinstall install linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop linux-image-uname -r libasound2; killall pulseaudio; rm -r ~/.pulse*; sudo usermod -aG cat /etc/group | grep -e '^pulse:' -e '^audio:' -e '^pulse-access:' -e '^pulse-rt:' -e '^video:' | awk -F: '{print $1}' | tr '\n' ',' | sed 's:,$::g' whoami

as I was having 11.10

Reboot

Guess what.. it worked like ever before :)

Kamal

Answer 2

I've got also the same problem with my sound card. But there's no sound at all. System is 32bit Ubuntu 11.04 with gnome-shell 3.3.2.

$ lspci -v | grep -A7 -i "audio"
Audio device: nVidia Corporation MCP55 High Definition Audio (rev a2)
    Subsystem: Micro-Star International Co., Ltd. Device 7250
    Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20
    Memory at fbef0000 (32-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: HDA Intel
    Kernel modules: snd-hda-intel

$ cat /proc/asound/cards 
 0 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xfbef0000 irq 20

After type $ sudo alsa reload device shows up in Sound settings, but theres still no sound.