hdmi audio not working for asus pn50
I'm trying to get audio working through hdmi on my asus pn50. The machine was originally an ubuntu server and through the troubleshooting process I eventually added the ubuntu-desktop package. I eventually ran the alsa info gathering script described in the ubuntu wiki audio troubleshooting steps output is here: http://
aplay can see the device:
```
➜ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Generic_1 [HD-Audio Generic], device 0: ALC255 Analog [ALC255 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
```
When I try to use `speaker-test -Dplughw:0,3` I can't hear any audio. I've tried changing the hdmi cable, and I've tested the hdmi port can get audio on my tv using another device.
I've tried reinstalling the alsa audio platform. When I go into alsamixer I'm not able to increase the volume, it appears to be set to 0. I've attempted to mute and unmute using alsamixer with no new results. Ubuntu desktop settings do not appear to detect the digital output of the system.
any help would be very much appreciated.
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