Arch Linux

Sandman007

Member

Registered: 2014-04-25

Posts: 5

No HDMI Audio on Optimus system

Hello Everyone,

I have an Asus G46vw Laptop, and I got HDMI working which did not work out of the box. This laptop has an onboard Intel HD4000 and a Discrete Nvidia 660M. Keep in mind that Bumblebee for me is out of question. I need HDMI video support.  I am having issues with getting HDMI audio to work. I am pretty good at googleing and finding varous solutions to solve other problems I  have had (e.g. HDMI video, borked touchpad, fn keys, etc). Half of my hardware is broken out of the box lol. Now I do have sound through my main speakers. I would try making various conf files with my HDMI hardware ID but unfortunately I don't think it is being detected properly as a sound device. Below is my aplay output.

# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: VT1802 Analog [VT1802 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: VT1802 Digital [VT1802 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 2: VT1802 Alt Analog [VT1802 Alt Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

When I do "#aplay --list-devices | grep -i HDMI" nothing shows up.  Any help is appreciated. Keep in mind I am new to Arch (have been on Ubuntu off and on last several years). I have beaten the hwiki to death I think

Also this is somewhat off topic but for some reason when HDMI gets activated after boot the boot sequence log is still shown on the Laptop screen. Is this normal? Shouldn't the laptop screen shut off at least after HDMI kicks on or I start my DE? I do not see an option in Settings/Display to turn off laptop screen (Gnome 3 DE)

Last edited by Sandman007 (2014-04-25 02:45:26)

djrubbie

Member

Registered: 2014-05-10

Posts: 1

Re: No HDMI Audio on Optimus system

I have the same problem.  It doesn't look like the correct things are exposed through the nvidia card/drivers until they fix it.  For instance in my case only the VGA controller is visible through lscpi

$ lspci |grep NVIDIA
01:00.0 VGA compatible controller: NVIDIA Corporation GF119M [GeForce GT 520M] (rev a1)