[Alsa-user] problem with hdmi audio

[Miroslav Š. <mir...@st...>]

hello,

i tried to make hdmi audio work on my laptop but so far i failed. hdmi
audio works fine on the same setup on windows, so it is not hw issue.
maybe someone can help me to make it work on linux.

my setup is acer aspire 8943g (gentoo linux, kernel 3.0.1, latest alsa
drivers from git, also tried kernel-provided alsa drivers) with fujitsu
p27t-6 display connected with hdmi cable. here is more info to the sound
cards and alsa:

# lspci -nn | grep Audio
00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series
Chipset High Definition Audio [8086:3b56] (rev 06)
01:00.1 Audio device [0403]: ATI Technologies Inc Juniper HDMI Audio
[Radeon HD 5700 Series] [1002:aa58]

# lspci -s 01:00.1 -v
01:00.1 Audio device: ATI Technologies Inc Juniper HDMI Audio [Radeon HD
5700 Series]
    Subsystem: Acer Incorporated [ALI] Device 038c
    Flags: bus master, fast devsel, latency 0, IRQ 49
    Memory at f8120000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [50] Power Management version 3
    Capabilities: [58] Express Legacy Endpoint, MSI 00
    Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
    Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd-hda-intel

# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC670 Analog [ALC670 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC670 Digital [ALC670 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

# aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
default:CARD=Intel
    HDA Intel, ALC670 Analog
    Default Audio Device
front:CARD=Intel,DEV=0
    HDA Intel, ALC670 Analog
    Front speakers
surround40:CARD=Intel,DEV=0
    HDA Intel, ALC670 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
    HDA Intel, ALC670 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
    HDA Intel, ALC670 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
    HDA Intel, ALC670 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
    HDA Intel, ALC670 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Intel,DEV=0
    HDA Intel, ALC670 Digital
    IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=Generic,DEV=0
    HD-Audio Generic, HDMI 0
    HDMI Audio Output

alsamixer displays for card1 switch S/PDIF which is unmuted.
command "speaker-test -Dplughw:1,3 -c2" issues no error but no sound
goes out of display speakers.
at this link http://bbs.archbang.org/viewtopic.php?id=441 there is a
similar card that works fine.

i am complete noob to hdmi so there can be something obvious that i am
missing.

i would appreciate any help to make hdmi work for me.

miroslav