Broadwell Intel Audio Only HDMI Output

Question

I have been trying for the last couple of days to get audio working on my Dell New XPS 13 (too new, maybe?). I don't think it's a hardware failure because the laptop is only four days old and the audio works when booted into Windows 8.1 (which is my YouTube OS for now).
The problem is that it detects that I only have HDMI audio (which I'm assuming refers to the mini display port on the laptop).
lspci -nn | grep audio -i
00:03.0 Audio device [0403]: Intel Corporation Broadwell-U Audio Controller [8086:160c] (rev 09)
sudo lspci -v (just the audio part)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
Subsystem: Dell Device 0665
Flags: bus master, fast devsel, latency 0, IRQ 49
Memory at f7418000 (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
cat /proc/asound/cards
0 [HDMI ]: HDA-Intel - HDA Intel HDMI
HDA Intel HDMI at 0xf7418000 irq 49
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
* EDIT *
cat /proc/asound/devices
2: [ 0] : control
3: [ 0- 3]: digital audio playback
4: [ 0- 7]: digital audio playback
5: [ 0- 8]: digital audio playback
6: [ 0- 0]: hardware dependent
33: : timer
lsmod | grep snd
snd_hda_codec_hdmi 49263 1
snd_hda_intel 26387 2
snd_hda_controller 26938 1 snd_hda_intel
snd_hda_codec 112621 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller
snd_hwdep 17244 1 snd_hda_codec
snd_pcm 88785 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer 26614 1 snd_pcm
snd 73436 10 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec,snd_hda_intel
soundcore 13031 2 snd,snd_hda_codec
* END EDIT *
GNOME Sound shows this:
I'm at a loss for what to do to get it to even recognize that there is something other than HDMI audio. Any help will be greatly appreciated. If there's anything important I left out, please let me know!
Last edited by kiswa (2015-01-23 21:43:32)

Answer 1

I'll look into that when I get home today, though my quick glance looks like it may hose some other things on the system. We'll see I guess.
I was afraid it was an issue of the chipset just being too new, and it looks like that might be the case. Maybe the next kernel update will help.
EDIT: Other than the audio issue, the laptop really is nice. It's very solid, lightweight, and small. I haven't tried any games on it yet, but I'm hoping it works well enough for some indie games.
Last edited by kiswa (2015-01-26 15:49:21)