Thanks SPARX, I've got an inspiron 1720 with an audio card as described below. Using Hardy- sound was fine until a recent update must've altered something and everything went mute. Turning off ESD recovered the sound.
00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b] (rev 02) Subsystem: Dell Unknown device [1028:01f2] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 20 Region 0: Memory at febfc000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> -- no sound on upgrade to Hardy Heron [Inspiron 1420] https://bugs.launchpad.net/bugs/223638 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs