Looks like I have no sound. Any ideas what to check?

lspci
00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82865G Integrated Graphics Controller (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)

Try running this, in a terminal, as root:

Just to follow-up on brianL's excellent post. Run these three commands as root in this order.

# alsaconf

# alsamixer

# alsactl store

Thanks, hitest. Yes, I should have mentioned the other two commands.

You're welcome:-)

Thanks. It still does not play, though maybe I need to reboot first?

Loading driver...
ALSA warning: No mixer settings found in /etc/asound.state.
Sound may be muted. Use 'alsamixer' to unmute your sound card,
and then 'alsactl store' to save the default ALSA mixer settings
to be loaded at boot.
Setting default volumes...
Saving the mixer setup used for this in /etc/asound.state.


............

Now ALSA is ready to use.
For adjustment of volumes, use your favorite mixer.

Have a lot of fun!

Try a re-boot and you should see your alsa settings loaded. You may need to use a volume control setting on your desktop after a re-boot (kmix if you're using KDE) to un-mute the sound.

I did use Kmix, but still no sound. Or set Kmix and then reboot again?

Works. The problem is that I also have a DVI Box to get input from the TV. So the issue now is how to have both the TV and the computer sound. If I hook the computer output to the phones, it's fine.
So now I have to figure out how to have both tv and PC sounds

Good to hear you have sound:-)