I've recently setup a new HTPC with video on HDMI and audio via IEC958.
Unfortunately my amp needs a repair and my TV only supports audio over HDMI
so I thought it might be good to see if it was possible to get HDMI audio
working as the motherboard packaging insists that it is :-). I also have an
issue at the moment with the AV sync being out by over 100ms which hopefully
can be resolved by switching to HDMI. I'm quite happy to patch the ALSA
source and/or the Intel video driver if required. So if anyone can confirm
if this is known to work / not work and what might need doing if it doesn't
work I'd appreciate it. I can re-post on the dev list if more appropriate.
I've compiled a few basic details on the system below, I can post more if
required.
Will
---------------
Motherboard: ABIT iL-90MV
Chipset: i945GT
2.6.31-gentoo-r6
* media-libs/alsa-lib
Latest version available: 1.0.21a
Latest version installed: 1.0.21a
[ 0.740726] Advanced Linux Sound Architecture Driver Version 1.0.20.
[ 0.741109] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 16 (level, low) ->
IRQ 16
[ 0.741228] HDA Intel 0000:00:1b.0: setting latency timer to 64
[ 0.773129] hda_codec: Unknown model for ALC882, trying auto-probe from
BIOS...
[ 0.777298] ALSA device list:
[ 0.777362] #0: HDA Intel at 0xfdff8000 irq 16
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition
Audio Controller (rev 02)
Subsystem: ABIT Computer Corp. Device 1075
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: 4 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fdff8000 (64-bit, non-prefetchable)
[size=16K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0
PME-
Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v1) Root Complex Integrated
Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc
0, Latency L0s <64ns, L1 <1us
ExtTag- RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal-
Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr-
NoSnoop+
MaxPayload 128 bytes, MaxReadReq 128
bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
AuxPwr+ TransPend-
LnkCap: Port #0, Speed unknown, Width x0,
ASPM unknown, Latency L0 <64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt-
AutBWInt-
LnkSta: Speed unknown, Width x0, TrErr- Train-
SlotClk- DLActive- BWMgmt- ABWMgmt-
Capabilities: [100] Virtual Channel <?>
Capabilities: [130] Root Complex Link <?>
Kernel driver in use: HDA Intel
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC882 Analog [ALC882 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC882 Digital [ALC882 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
* x11-drivers/xf86-video-intel
Latest version available: 2.9.1
Latest version installed: 2.9.1
(II) LoadModule: "intel"
(II) Loading /usr/lib/xorg/modules/drivers//intel_drv.so
(II) Module intel: vendor="X.Org Foundation"
compiled for 1.6.5, module version = 2.9.1
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