No sound on thinkpad

Please post the output of:

lspci

You run this in a terminal session (Applications | Accessories | Terminal)

This will tell us what type of sound card you have.

lsubuntu@edubuntu-tpr40:~$ lspci
00:00.0 Host bridge: ATI Technologies Inc RS200/RS200M AGP Bridge [IGP 340M] (rev 02)
00:01.0 PCI bridge: ATI Technologies Inc PCI Bridge [IGP 340M]
00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:03.0 Modem: ALi Corporation M5457 AC'97 Modem Controller
00:04.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link Controller Audio Device (rev 02)
00:06.0 Bridge: ALi Corporation M7101 Power Management Controller [PMU]
00:07.0 ISA bridge: ALi Corporation M1533/M1535/M1543 PCI to ISA Bridge [Aladdin IV/V/V+]
00:0b.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5901 100Base-TX (rev 01)
00:0c.0 CardBus bridge: Texas Instruments PCI1510 PC card Cardbus Controller
00:0f.0 IDE interface: ALi Corporation M5229 IDE (rev c4)
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon IGP 330M/340M/350M
ubuntu@edubuntu-tpr40:~$

I have setup a few thinkpads with ubuntu and have never had an issue with the sound not working.

Use the volume keys on the thinkpad to ensure that the audio is not muted or set all the way down. Also open your volume control by right-clicking the volume icon in the system tray and select Open Volume Control. Again, check to make sure that the levels are not muted or set all the way down.

Hope this helps

I am not aware of your card having issues, nor have I found any specific posts about it.

Here is a general guide you can take a look at:

https://help.ubuntu.com/community/HdaIntelSoundHowto

Same problem on a Thinkpad T43p with a 00:1e.2 Multimedia audio controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 03).

No problems with sound until latest 2.26.7-9-generic kernel update. After that I have no sound.

Upgrading the thinkpad T43p to kernel 2.26.27-11 does not solve the problem.

I upgraded today a Dell computer which was playing sound. After the restart the sound was gone. I had to turn the sound OFF en up again. The music started to play again. So I went to my Thinkpad, disabled the sound and turned the volume up again. The music played and played again.

It seems that on this machines I had to disable the sound and to enable again to get the music playing.

Great - glad you found the solution... mark this thread as solved so others will know when looking for answers that this one was solved.