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I have a X1 Carbon Gen 3 and I'm trying to get my HDMI port to output sound to my TV. I have alsa installed only, and only modified my asound.conf to make the default sound card my laptop's speakers.
Here's the output of various commands, I'm not sure how useful they are but after a lot of googling these have solved other people's problems, but not mine:
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC3232 Analog [ALC3232 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0lsmod | grep snd
snd_hda_codec_hdmi 53248 1
snd_hda_codec_realtek 65536 1
snd_hda_codec_generic 65536 1 snd_hda_codec_realtek
snd_hda_intel 28672 1
snd_hda_controller 28672 1 snd_hda_intel
snd_hda_codec 114688 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep 16384 1 snd_hda_codec
snd_pcm 90112 5 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer 28672 1 snd_pcm
snd 69632 10 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,thinkpad_acpi
soundcore 16384 2 snd,snd_hda_codeclspci -v (irrelevant stuff cut out):
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
Subsystem: Lenovo Device 2227
Flags: bus master, fast devsel, latency 0, IRQ 49
Memory at e1130000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
Subsystem: Lenovo Device 2227
Flags: bus master, fast devsel, latency 32, IRQ 48
Memory at e1134000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intelasound.conf:
pcm.!default {
type hw
card 1
}
ctl.!default {
type hw
card 1
}Without the asound.conf the default sound card is HDMI, and still no sound is played through the TV. Using xrandr I'm able to see HDMI video, so I know it is connected, but there is no sound. doing aplay -D plughw:0,3 sound.wav gives no errors as does device 7 and 8, but produces no sound despite HDMI being connected and running. Whether it is set as the default card or not this result is the same.
More troubling is that looking at alsamixer shows the following: http://i.imgur.com/I9nlgP3.png which seems to be abnormal based on issues that other people have had with HDMI. I'm running the latest kernel and packages, but I don't think that has caused the issue since I've never gotten HDMI audio to work with any kernel version on this laptop.
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I use 2 sound card: XFI and hdmi from nvidia graphic card (GTX660) without asound.conf. I just ordered them in /etc/modprobe/alsa-base.conf with index=0 and index=1 and it works.
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I have exactly the same problem except mine is haswell but exactly the same issue. I've got Asus Chromebox Haswell. Still searching how to fix this. The analog works though.
Last edited by lenk (2015-06-20 00:32:20)
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I know that openelec linux distribution works on my hardware. I may pop over there to ask what magic they used.
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LaserEyess: I got mine figured out. I have a Samsung TV and I labelled my hdmi 1 to DVI/PC so it would get rid of overscan. It seems audio doesn't passthrough with that label. Now I labelled hdmi 1 as PC and sound is working. However I still don't have a volume channel on hdmi, the hdmi in alsamixer still does not let me change volume.
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I fixed mine by installing pulse audio. It let me access the HDMI channels, but only stereo for some reason, I couldn't get the 5.1 or 7.1 surround sound on the specific HDMI output that was "real". I had to reboot my computer but it worked. This isn't an elegant solution (or even a solution at all) and I'm still baffled why ALSA won't let me adjust the channels.
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I manage to get alsa working too. But its just easier with pulseaudio. If you want volume control, you need to use softvol in alsa.
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