HiFi Berry DAC + supported?

Trombone · May 26, 2016 at 2:09 PM

Dear Libreelec support,

I just did a succesfull (clean) installation of Libreelec 7.0.1 and was happy to see airplay (audio) does function (via my TV).

I'm using a Hifiberry DAC+ soundcard on my RPi2 and this was function well when I used OE 6.0.3.
So I made the same changes in config.txt but the Hifiberry DAC+ isn't recognised.

This is added within config.txt:
dtoverlay=hifiberry-dacplusdtdebug=1amixer -c 0 set Digital 80%

And this is what I found in the log:

001904.118: dtdebug: Failed to open overlay file 'overlays/hifiberry-dacplus.dtbo'
001904.130: Failed to load overlay 'hifiberry-dacplus'
001907.777: dtdebug: /aliaseserial0=uart0
001910.589: dtdebug: /aliaseserial1=uart1

If you need more logging I can provide it.

Hopefully my problem can be solved otherwise I can't switch to Libreelec.

Kind regards,
|
Rob

**awiouy** · May 26, 2016 at 8:00 PM Official Post

Quote from Trombone

This is added within config.txt:
dtoverlay=hifiberry-dacplusdtdebug=1amixer -c 0 set Digital 80%

Hello,
Shouldn't that rather merely be:
dtoverlay=hifiberry-dacplus

According to my system, the hifiberry-dacplus dtoverlay may only take one parameter:

Code

LibreELEC:~ # dtoverlay -h hifiberry-dacplus
Name:   hifiberry-dacplus


Info:   Configures the HifiBerry DAC+ audio card


Usage:  dtoverlay=hifiberry-dacplus,<param>=<val>


Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
                                Digital volume control. Enable with
                                "dtoverlay=hifiberry-dacplus,24db_digital_gain"
                                (The default behaviour is that the Digital
                                volume control is limited to a maximum of
                                0dB. ie. it can attenuate but not provide
                                gain. For most users, this will be desired
                                as it will prevent clipping. By appending
                                the 24dB_digital_gain parameter, the Digital
                                volume control will allow up to 24dB of
                                gain. If this parameter is enabled, it is the
                                responsibility of the user to ensure that
                                the Digital volume control is set to a value
                                that does not result in clipping/distortion!)

Display More

Where is the remainder (dtdebug=1amixer -c 0 set Digital 80%) documented?
Also, spaces seem to be missing, eg
dtoverlay=hifiberry-dacplus dtdebug=1 ~~amixer -c 0 set Digital 80%~~

**lrusak** · May 27, 2016 at 2:29 AM Official Post

The amixer command has no place in config.txt. That should be in autostart.sh if at all.

Trombone · May 27, 2016 at 6:50 AM

Thanks for your comments so far.
This weekend I will test the settings which Awiouy recommended.

As another test I upgrade my OE 6.0.3 with Libreelec 7.0.1, leaving the Hifi Berry DAC+ settings as it workes with OE:
dtoverlay=hifiberry-dacplus
dtdebug=1
amixer -c 0 set Digital 80%
Then the Hifiberry worked (with the above config settings).

I will post teh results.

Trombone · May 27, 2016 at 4:22 PM

The Hifiberry support team looked at my log file and they came back with the message:

The overlay file is missing. You need to inform the developers that they need to fix this. Looks like the developers didn't really test the Raspberry Pi release well enough. I would recommend to stick with OpenElec until Librelec is really stable.

So hopefully the developers will fix this issue as soon as possible.

Grimson · May 27, 2016 at 5:04 PM

Quote from Trombone

The Hifiberry support team looked at my log file and they came back with the message:

The overlay file is missing. You need to inform the developers that they need to fix this. Looks like the developers didn't really test the Raspberry Pi release well enough. I would recommend to stick with OpenElec until Librelec is really stable.

So hopefully the developers will fix this issue as soon as possible.

They are wrong, the overlay file is included. Make sure you edit the config.txt with an editor that supports linux line endings.

**awiouy** · May 27, 2016 at 5:22 PM Official Post

Quote from Trombone

The Hifiberry support team looked at my log file and they came back with the message:

The overlay file is missing. You need to inform the developers that they need to fix this. Looks like the developers didn't really test the Raspberry Pi release well enough. I would recommend to stick with OpenElec until Librelec is really stable.

So hopefully the developers will fix this issue as soon as possible.

Strange,
When I add "dtoverlay hifiberry-dacplus" in /flash/config.txt of my LibreElec 7.0.1, lsmod yields:

Code

snd_soc_pcm512x_i2c     2051  0
snd_soc_pcm512x        16309  1 snd_soc_pcm512x_i2c
snd_soc_hifiberry_dacplus     3652  0
snd_soc_bcm2835_i2s     5868  0
snd_soc_core          102747  3 snd_soc_pcm512x,snd_soc_bcm2835_i2s,snd_soc_hifiberry_dacplus
snd_pcm_dmaengine       2879  1 snd_soc_core
snd_pcm                66625  4 snd_soc_pcm512x,snd_soc_core,snd_pcm_dmaengine,snd_soc_hifiberry_dacplus
snd_timer              17221  1 snd_pcm
snd                    40668  3 snd_soc_core,snd_timer,snd_pcm

What is your version of LibreElec? If it is 7.0.1, please provide your config.txt and a log; otherwise upgrade.

Trombone · May 27, 2016 at 5:40 PM

I did put dtoverlay=hifiberry-dacplus in the /flash/config.txtModule Size Used byfuse 74850 38021q 16074 0bcm2835_gpiomem 2652 0bcm2835_wdt 2777 0snd_soc_hifiberry_dacplus 3588 0snd_soc_core 100158 1 snd_soc_hifiberry_dacplussnd_pcm_dmaengine 2815 1 snd_soc_coresnd_pcm 66018 3 snd_soc_core,snd_pcm_dmaengine,snd_soc_hifiberry_dacplussnd_timer 17428 1 snd_pcmsnd 40540 3 snd_soc_core,snd_timer,snd_pcmLibreELEC:~ #

I'm usinge LE 7.0.1

**awiouy** · May 27, 2016 at 5:55 PM Official Post

What does the "aplay -l" command line return?

Trombone · May 27, 2016 at 6:04 PM

Should I run the command (aplay -l) with or without dtoverlay=hifiberry-dacplus in the config.txt?

**awiouy** · May 27, 2016 at 6:35 PM Official Post

After LE is booted with dtoverlay hifiberry-dacplus in config.txt. It is to list ALSA souncards

Trombone · May 28, 2016 at 9:41 AM

I did a fresh install of LE 7.0.1.
Put dtoverlay=hifiberry-dacplus (also tested with dtoverlay hifiberry-dacplus) in the /flash/config.txt and rebooted LE.

Below the results of LSMOD, play -l and vcdbg log msg

lsmod

Module Size Used by
fuse 74850 3
8021q 16074 0
bcm2835_gpiomem 2652 0
bcm2835_wdt 2777 0

aplay -l

aplay: device_list:268: no soundcards found...

vcdbg log msg

001686.598: Failed to load HAT overlay
001687.125: dtdebug: Failed to open overlay file 'overlays/hifiberry-dacplus.dtbo'
001687.138: Failed to load overlay 'hifiberry-dacplus'
001690.771: dtdebug: /aliaseserial0=uart0
001693.567: dtdebug: /aliaseserial1=uart1

Can a hifiberry-dacplus overlay from a OE be copied into my LE install?

**HiassofT** · May 28, 2016 at 12:59 PM

Quote from Trombone

001687.125: dtdebug: Failed to open overlay file 'overlays/hifiberry-dacplus.dtbo'

This is really odd. Check if the file exists on your installation. Here (LE 7.0.1 on a RPi2) it's there:

Code

LibreELEC:~ # ls -l /flash/overlays/hifiberry-dacplus.dtbo
-rwxr-xr-x 1 root root 1358 May 17 06:31 /flash/overlays/hifiberry-dacplus.dtbo

Also please post full logs and better use a paste site for this and then just post the URL:

Code

LibreELEC:~ # vcdbg log msg 2>&1 | paste

so long,

Hias

Trombone · May 28, 2016 at 1:30 PM

Quote from HiassofT

LibreELEC:~ # ls -l /flash/overlays/hifiberry-dacplus.dtbo

LibreELEC:~ # ls -l /flash/overlays/hifiberry-dacplus.dtbo
ls: /flash/overlays/hifiberry-dacplus.dtbo: No such file or directory

For the complete log see:EAWL

**HiassofT** · May 28, 2016 at 1:43 PM

Quote from Trombone

LibreELEC:~ # ls -l /flash/overlays/hifiberry-dacplus.dtbo
ls: /flash/overlays/hifiberry-dacplus.dtbo: No such file or directory

Strange... How did you install LE?

I just checked the 7.0.1 RPi2 image and the overlay file is definitely in there.

so long,

Hias

Trombone · May 28, 2016 at 1:49 PM

I downloaded the RPi2 and RPi3 (Combined) Build from the chapter "New Install and Manual Update for LibreELEC (.img.gz)"

And used this method:

Extract the image from the .gz file using 7zip.
Insert your USB Stick / SDcard into your system. It should appear with a new drive letter.
Run Win32DiskImager
Select the image file and verify the destination drive letter is correct, then click write.

**HiassofT** · May 28, 2016 at 2:55 PM

OK, the install method looks fine, but it's puzzling why you don't have the overlay file there.

Could you post the list of files in /flash?

Code

ls -lR /flash | paste

You could try reinstalling LE via the manual update method (this'll preserve all config settings). Just copy the img file to the "Update" share (or to /storage/.update via ssh/scp) and reboot.
HOW TO:Update LibreELEC - LibreELEC

so long,

Hias

Trombone · May 28, 2016 at 3:13 PM

Thanks Hias the update did the job.

It's reproducable. I did a fresh install on another SD card, there was no overlay foler.
Updated it and there was the overlay folder including the overlays for Hifiberry.

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