Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: cegueira on November 17, 2014, 12:25:05 am

Title: HDMI Sound on A20-LIME
Post by: cegueira on November 17, 2014, 12:25:05 am
Hi,

I am using the latest Debian release and I can't seem to get HDMI audio to work. There is no speaker icon in the system tray. I have tried adding hdmi.audio=EDID:0 to /boot/uEnv.txt.

aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: sunxicodec [sunxi-CODEC], device 0: M1 PCM [sunxi PCM]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: sunxisndhdmi [sunxi-sndhdmi], device 0: SUNXI-HDMIAUDIO sndhdmi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0



aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
sysdefault:CARD=sunxicodec
    sunxi-CODEC, sunxi PCM
    Default Audio Device
sysdefault:CARD=sunxisndhdmi
    sunxi-sndhdmi,
    Default Audio Device


If I use alsamixer and try and select the correct sound output I get the message:
"This sound device does not have any controls."

Could somebody tell me how to get this to work?

Thanks
Title: Re: HDMI Sound on A20-LIME
Post by: cegueira on November 17, 2014, 06:42:06 pm
After messing around with various files the HDMI sound has decided to start working. I have no idea what made it start working.
Title: Re: HDMI Sound on A20-LIME
Post by: css on December 10, 2017, 07:26:03 pm
Excuse me for bringing back this old post... but I,m having same troubles about hdmi audio output. so I was wondering if you remember how to do it.

Thanks a lot!