ALSA 1.0.23 - Still no HDMI device

[bprins]

Hi,

I'm a bit confused. I am still struggling with getting my HDMI working under Ubuntu lucid.

I added the ricotz/unstable repositories to get the latest version of ALSA (1.0.23):

sudo add-apt-repository ppa:ricotz/unstable
sudo apt-get update 
sudo apt-get upgrade

All 1.0.23 related packages were installed (Alsa base, alsa utils, libasound).

If I check the ALSA version in /proc/asound:

bas@ubuntu-lt:~$ cat /proc/asound/version 
Advanced Linux Sound Architecture Driver Version 1.0.21.

Result, still no HDMI ports available when I type aplay -l:

bas@ubuntu-lt:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

I got this working under Karmic. What am I doing wrong?

Help is appreciated! Thanks in advance.

Bas

[bprins]

Further more:

alsamixer -c 1:

Card: HDA NVidia
Chip: Nvidia ID a
│  This sound device does not have any controls.

[speedwell68]

I'll watch this one with interest as I am having the exact same problems.

[dino99]

follow this link:

http://alsa.opensrc.org/index.php/DigitalOut

[speedwell68]

follow this link:

http://alsa.opensrc.org/index.php/DigitalOut

Looks useful, thanks.

[bprins]

Hi,

Thanks for the pointer.

The thing is, for some reason my nvidia sound card is not listed in aplay.

bas@ubuntu-lt:~$ cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xb7100000 irq 22
 1 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xb3000000 irq 16

bas@ubuntu-lt:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

I had the same problem on Karmic, there it was solved with Alsa 1.0.23. So I've updated with the packages from rizotz/unstable, but cat /proc/asound/version still gives 1.0.21 (while synaptic does tell me that alsa-base 1.0.23 is installed).

So my guess is that it goes wrong at some point there.

Any clue?

thanks in advance.

Bas

[bprins]

Problem solved.

I found a post where they solved it by upgrading the alsa kernel driver.

If anybody has the same issue, this is what you need to do to solve the problem:

1) Add the repository for audio packages:

add-apt-repository ppa:ubuntu-audio-dev/ppa

2) Check your kernel version:

uname -a

For me this is:

bas@ubuntu-lt:~$ uname -a
Linux ubuntu-lt 2.6.32-24-generic #39-Ubuntu

3) The install the alsa kernel driver:

sudo apt-get install linux-alsa-driver-modules-2.6.32-24-generic

Note: the bold part should be replaced by your own kernel version (uname -a)

4) Reboot and check ur aplay -l output

bas@ubuntu-lt:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Good luck.

Bas

[bprins]

Once you have your HDMI devices, do not forget to unmute them in alsamixer.

alsamixer -c 1

Note the -c 1. That tells alsamixer which card you want to tune. Unmute a device with the 'm' key.

[kellymartinv]

Had the same problem and installing that fixed it up for me, thanks!

[IndieRockSteve]

bprins directions worked perfectly for me on two systems. thanks!