Sorry I should be more specific.
Running x86_64 Ubuntu 11.04 on a AMD Athlon 64 x2.
There are two sound devices appearing in the volume control. The first
is the audio chip on the mother board; the second is the hdmi audio on
the graphics card.
The relevant sections of lspci -vvv
00:06.1 Audio device: nVidia Corporation MCP55 High Definition Audio (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 81f6
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0 (500ns min, 1250ns max)
Interrupt: pin B routed to IRQ 21
Region 0: Memory at fe024000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
02:00.1 Audio device: ATI Technologies Inc Redwood HDMI Audio [Radeon HD 5600
Series]
Subsystem: ASUSTeK Computer Inc. Device aa60
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin B routed to IRQ 41
Region 0: Memory at fdbfc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
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https://bugs.launchpad.net/bugs/783682
Title:
sound stops after a random interval
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