After muting headphone and line jack sense, I get sound from the speakers, but not from the headset. Testing in sound Preferences gives the following results: In 'sound Events' and 'Music and Movies' everythin works except Intel 82801DB-ICH4 where I get a test window but no sound; and ESD where I get the message: "audiotestsrc wave=sine freq=512 ! audioconvert ! audioresample ! gconfaudiosink profile=music: Could not establish connection to sound server" In 'Audio Conferencing / Sound Playback' I get same as above, except "audiotestsrc wave=sine freq=512 ! audioconvert ! audioresample ! gconfaudiosink profile=chat: Could not establish connection to sound server" with ESD. In 'Audio Conferencing / Sound Capture' Things generally don't work, with "failed to construct pipeline" or could lnot open for writing. OSS freezes. Test sound works. The silence test also - I don't hear anything! lspci -nv output: 00:00.0 0600: 8086:2560 (rev 01) Subsystem: 1028:0160 Flags: bus master, fast devsel, latency 0 Memory at f0000000 (32-bit, prefetchable) [size=128M] Capabilities: 00:02.0 0300: 8086:2562 (rev 01) Subsystem: 1028:0160 Flags: bus master, fast devsel, latency 0, IRQ 177 Memory at e8000000 (32-bit, prefetchable) [size=128M] Memory at feb80000 (32-bit, non-prefetchable) [size=512K] Capabilities: 00:1d.0 0c03: 8086:24c2 (rev 01) Subsystem: 1028:0160 Flags: bus master, medium devsel, latency 0, IRQ 177 I/O ports at ff80 [size=32] 00:1d.1 0c03: 8086:24c4 (rev 01) Subsystem: 1028:0160 Flags: bus master, medium devsel, latency 0, IRQ 185 I/O ports at ff60 [size=32] 00:1d.2 0c03: 8086:24c7 (rev 01) Subsystem: 1028:0160 Flags: bus master, medium devsel, latency 0, IRQ 169 I/O ports at ff40 [size=32] 00:1d.7 0c03: 8086:24cd (rev 01) (prog-if 20) Subsystem: 1028:0160 Flags: bus master, medium devsel, latency 0, IRQ 193 Memory at ffa80800 (32-bit, non-prefetchable) [size=1K] Capabilities: 00:1e.0 0604: 8086:244e (rev 81) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=32 I/O behind bridge: 0000d000-0000dfff Memory behind bridge: fe900000-feafffff Prefetchable memory behind bridge: 20000000-200fffff 00:1f.0 0601: 8086:24c0 (rev 01) Flags: bus master, medium devsel, latency 0 00:1f.1 0101: 8086:24cb (rev 01) (prog-if 8a) Subsystem: 1028:0160 Flags: bus master, medium devsel, latency 0, IRQ 169 I/O ports at I/O ports at I/O ports at I/O ports at I/O ports at ffa0 [size=16] Memory at feb7fc00 (32-bit, non-prefetchable) [size=1K] 00:1f.3 0c05: 8086:24c3 (rev 01) Subsystem: 1028:0160 Flags: medium devsel, IRQ 3 I/O ports at eda0 [size=32] 00:1f.5 0401: 8086:24c5 (rev 01) Subsystem: 1028:0160 Flags: bus master, medium devsel, latency 0, IRQ 201 I/O ports at ee00 [size=256] I/O ports at edc0 [size=64] Memory at feb7fa00 (32-bit, non-prefetchable) [size=512] Memory at feb7f900 (32-bit, non-prefetchable) [size=256] Capabilities: 01:05.0 0780: 14f1:2702 (rev 01) Subsystem: 1028:8d88 Flags: bus master, medium devsel, latency 64, IRQ 3 Memory at fe9f0000 (32-bit, non-prefetchable) [size=64K] I/O ports at dff8 [size=8] Capabilities: 01:09.0 0200: 14e4:4401 (rev 01) Subsystem: 1028:8127 Flags: bus master, fast devsel, latency 64, IRQ 201 Memory at fe9ee000 (32-bit, non-prefetchable) [size=8K] Expansion ROM at 20000000 [disabled] [size=16K] Capabilities: Thanks for the progress so far. I will not move anything until I hear from you. Jim On 11/7/06, Daniel T Chen