https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/775822
00:07.0 Audio device [0403]: nVidia Corporation MCP67 High Definition Audio
[10de:055c] (rev a1)
Subsystem: Acer Incorporated [ALI] Device [1025:0127]
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 A routed to IRQ 18
Region 0: Memory at f4480000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
seem using nvidia hda controller in the past
but class seem different
[ 0.216325] pci 0000:07:00.0: [168c:001c] type 00 class 0x020000
[ 0.216344] pci 0000:07:00.0: reg 0x10: [mem 0xf4000000-0xf400ffff 64bit]
[ 0.216468] pci 0000:07:00.0: disabling ASPM on pre-1.1 PCIe device. You
can enable it with 'pcie_aspm=force'
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https://bugs.launchpad.net/bugs/1366612
Title:
PCI/internal sound card not detected
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