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amp+ instalation

Peter

February 12, 2016 16:37

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Hi,

my HW is raspberry pi 2, official 7'' display and hifiberry amp +

Just trying to install drivers.

I am using raspbian and version is 4.1.13-v7

I prefer using my own OS so I didn't use hifiberry image.

I did what was written in configuration linux 3.18 and high.

But many thing I diddn't do.

Step 1 - on my system is file  /etc/modprobe.d/raspi-blacklist.conf empty with 0 bytes. It exists but is empty so there I didn't do any changes

Step 2 - there was no line like is in docu. I have there only 1 line with i2c-dev

So again I didn't do any changes

Step 3 -I did - I added the line dtoverlay=hifiberry-amp to config.txt

Step 4 - I created asound.conf like is in docu.

I connected loudspeaker, rebootted and no sound

when I look to

aplay -l 

I can see that

card0 is bcm2835 ALSA

card1 sndrphifiberry [snd_rpi_hifiberry_amp]

 

What should I change?

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3 comments

• 0
  
  hifi February 12, 2016 16:56

  If you are not going to use on-board audio you can disable it. You can do that by removing line dtparam=audio=on from config.txt if it's there and by removing line snd_bcm2835 from /etc/modules. In my case dtparam was not there and removing snd_bcm2835 fixed the problem.

  Edited by hifi February 12, 2016 16:58
• 0
  
  Peter February 12, 2016 17:41

  thanks for help !!!

  I removed this line (e dtparam=audio=on ) and I am now able to play with commands mpc play, mpc stop

  but sound is too lood and I am not able to change volume with commands for volume +

• 0
  
  Peter February 12, 2016 17:51

  it looks that command control volume

  amixer sset Master 70%
  
  :-)