I just installed Ubuntu 11 Server with LXDE. I found that there was no sound. What do I do?
Following Sound Troubleshooting
jm@jm-laptop:~$ gnome-volume-control
** (gnome-volume-control:8750): WARNING **: Connection failed, reconnecting...
jm@jm-laptop:~$ sudo aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
jm@jm-laptop:~$ find /lib/modules/`uname -r` | grep snd
/lib/modules/2.6.38-8-server/kernel/sound/pcmcia/vx/snd-vxpocket.ko
/lib/modules/2.6.38-8-server/kernel/sound/pcmcia/pdaudiocf/snd-pdaudiocf.ko
/lib/modules/2.6.38-8-server/kernel/sound/i2c/snd-cs8427.ko
/lib/modules/2.6.38-8-server/kernel/sound/i2c/snd-i2c.ko
/lib/modules/2.6.38-8-server/kernel/sound/i2c/other/snd-ak4117.ko
/lib/modules/2.6.38-8-server/kernel/sound/i2c/other/snd-ak4114.ko
/lib/modules/2.6.38-8-server/kernel/sound/i2c/other/snd-pt2258.ko
/lib/modules/2.6.38-8-server/kernel/sound/i2c/other/snd-ak4xxx-adda.ko
...
jm@jm-laptop:~$ lspci -v
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 18)
Subsystem: Dell Device 0419
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>
00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 18) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00002000-00002fff
Memory behind bridge: cfe00000-cfefffff
Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) (prog-if 20 [EHCI])
Subsystem: Dell Device 0419
Flags: bus master, medium devsel, latency 0, IRQ 16
Memory at f0b05800 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd
...
jm@jm-laptop:~$ wget -O alsa-info.sh http://alsa-project.org/alsa-info.sh && bash ./alsa-info.sh
...
Your ALSA information is located at http://www.alsa-project.org/db/?f=711f054c4abd11e4c5570d5f7c315982f9d147e7
The contents of the URL http://pastie.org/1929819
Now what?
alsamixer
? Run that and make sure everything is turned up (use arrow keys, and don't forget to hit tab and check you haven't missed anything!) This has fixed this issue for me on many occasions.M
mutes/unmutes. If a channel is unmuted, then there is a green box underneath the volume slider. If the channel is muted, the box is grey.alsamixer
saw that sound seems ok then tried going YouTube ... i.imgur.com/pJrbZ.png ... does justalsamixer
do anything to enable sound?