All of a sudden HDMI works :O

quantumphaze · 2010-01-18 13:50:37

It may seem odd for me to post about something working but read on anyway.

This afternoon I woke up and booted up my computer (ThinkPad SL500, Nvidia 9300M GS) and everything was apparently as usual. I log in to KDE to be greeted with an alert that HDA Intel (Conextant Digital) is no longer available.
I investigate this in System Settings - Multimedia and behold; I have myself a brand new HDA Intel, NVIDIA HDMI (HDMI Digital Output)

aplay -l backs me up on this:

**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: Conexant Digital [Conexant Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 3: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

This device never worked before, the device 3 part was never there. No matter how much I tried I couldn't find the secret to getting the bloody thing to work. Recent updates didn't touch ALSA or the kernel so I have no idea why is suddenly recognised today.

A module that wasn't there before is also loaded up called snd_hda_codec_nvhdmi
I also discovered there are also many more related modules in /lib/modules/2.6.32-ARCH/kernel/sound/pci/hda which may hopefully help others with Nvidia/Intel/ATI integrated graphics cards work with their Intel HDA.

I tested it our and it worked for real. Now I'm actually worried that it will stop working if I reboot it.

Has anyone else had similar weirdness or can't get similar hardware working?

Odysseus · 2010-01-18 16:13:50

I have an HP DV2700 w/ Intel HDA audio and an Nvidia 8400M. Never did get HDMI audio working. I tried inserting that module, but nothing new:

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: Conexant Digital [Conexant Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

And by the way, what is the Conexant Digital device supposed to do or be? I always figured that was the HDMI output.

Last edited by Odysseus (2010-01-18 16:44:24)

kamil · 2010-01-18 23:21:45

I had the same weirdness, but Nividia HDMI appeared in "aplay -l" on 1st January. I also have Nivida 9300m.

Last edited by kamil (2010-01-18 23:21:54)

quantumphaze · 2010-01-19 02:03:04

A little more information on what Intel HDA actually is at Wikipedia

My computer still has HDMI recognised, but KDE still popped up some notification. It was gone before I could get a proper look, but I think it said the Analog one wasn't working correctly and falling back to HDMI. Analog is working fine though. I will help run any commands that may help in finding what exactly is happening to fix it, but I don't know what to do exactly.

Arch Linux

#1 2010-01-18 13:50:37

All of a sudden HDMI works :O

#2 2010-01-18 16:13:50

Re: All of a sudden HDMI works :O

#3 2010-01-18 23:21:45

Re: All of a sudden HDMI works :O

#4 2010-01-19 02:03:04

Re: All of a sudden HDMI works :O

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