DAC+ stopped working / no sound

Joost Brok

February 15, 2015 17:58

None

Unfortunately, my DAC+ (with RPi B+) stopped working. First, I thought the issue was a Raspbmc update, but when I tried one of the test images (hifiberry-testimage.img) still no sound. How can I debug this issue further? I do not have a multimeter at home, as this forum said to check P5 voltages (?). Any power or voltage issues due to bad power supply are ruled out.

When trying the test image, the green LED is on but no signs of music. iPhone to amp is okay, so the amp/aux is working.

Any thoughts?

Thanks in advance!

Date Votes

15 comments

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HiFiBerry team February 16, 2015 06:20

This is very unusual. Did you check the cabling? If the green LED is on, this shows that the DAC+ is configured correctly. What do you see on the screen with the test image?

Best regards
Daniel

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Joost Brok February 16, 2015 07:24

Tried to embed this image in the original post:
https://www.evernote.com/shard/s20/sh/b1debec6-4247-4d7f-9eb2-01da04e72910/711f1eb1b791d0bd/res/21710118-d832-40c1-aa93-01d1bb6fc34c/IMG_0245.JPG?resizeSmall&width=832

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HiFiBerry team February 16, 2015 09:16

Does the percentage display change or is it stuck at 0%?
Have you connected any other hardware to the Raspberry Pi?

Best regards
Daniel

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Joost Brok February 16, 2015 18:54

Okay, I had an really awkward moment. :) Thanks to the fact that when the green led is on, everthing should be okay I double checked cables. When grabbed the whole cable from behind the wall unit, it ended into a mini jack. Incidently, I had 2 RCA to minijack cables and both ends of the mini jacks ended behind the wallunit, while I was thinking is was one RCA. A big oops. :)

Thanks for the support anyway.

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HiFiBerry team February 16, 2015 20:56

At least it works again :-)

Enjoy your sound!
Daniel

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jbolila February 16, 2015 21:31

after follow the instructions on the page for 3.18 i got the following error:


[    8.976120] snd-rpi-hifiberry-dacplus sound: ASoC: CODEC DAI pcm512x-hifi not registered
[    9.180568] snd-rpi-hifiberry-dacplus sound: snd_soc_register_card() failed: -517
[    9.273122] platform sound: Driver snd-rpi-hifiberry-dacplus requests probe deferral

Linux raspberrypi 3.18.7+ #755 PREEMPT Thu Feb 12 17:14:31 GMT 2015 armv6l GNU/Linux


root@raspberrypi:~# aplay -l
aplay: device_list:252: no soundcards found...

and no green light, was working before the upgrade.

any idea?

thanks,

joao

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HiFiBerry team February 17, 2015 07:50

Hi Joao,

which distribution are you using?

Best regards
Daniel

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jbolila February 17, 2015 08:01

Raspbian GNU/Linux 7 (wheezy)

(with Volumio and Kodi, both working for two months before this upgrade)

Thanks,

Joao

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HiFiBerry team February 17, 2015 10:27

What kernel did you use before? I just tested the latest 3.18.7 kernel on Raspbian and it works here.

Check the output of
sudo vcdbg log msg

Best regards
Daniel

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jbolila February 17, 2015 11:12

Thanks Daniel,


000937.169: Loading 'kernel.img' from SD card
001212.071: Kernel trailer DTOK property says yes
001213.485: Loading 'bcm2708-rpi-b-plus.dtb' from SD card
001221.366: Loaded overlay 'hifiberry-dacplus'
001247.534: gpioman: gpioman_get_pin_num: pin SDCARD_CONTROL_POWER not defined
003380.027: vchiq_core: vchiq_init_state: slot_zero = 0x57800000, is_master = 1
003383.587: hdmi: HDMI:hdmi_get_state is deprecated, use hdmi_get_display_state instead
003386.354: cma: cma_hwm is zero - disabling cma service
003387.928: gpioman: gpioman_get_pin_num: pin LEDS_RUNNING not defined

I'm not sure of the previous version, but was a Raspbian from mid last December.

.. I'll do a fresh install today.

Kind regards,

Joao

HiFiBerry team February 17, 2015 11:22

Hmm, looks like the overlay file isn't loaded correctly. If you have device tree debugging turned on in config.txt, it should look similar to this:

001235.635: Loaded overlay 'hifiberry-dacplus'
001242.628: dtdebug: Found fragment 0 (offset 36)
001246.887: dtdebug: merge_fragment(/sound,/fragment@0/__overlay__)
001246.912: dtdebug:   +prop(compatible)
001247.133: dtdebug:   +prop(i2s-controller)
001247.536: dtdebug:   +prop(status)
001247.849: dtdebug: merge_fragment() end
001247.911: dtdebug: Found fragment 1 (offset 168)
001249.470: dtdebug: merge_fragment(/soc/i2s@7e203000,/fragment@1/__overlay__)
001249.495: dtdebug:   +prop(status)
001250.062: dtdebug: merge_fragment() end
001250.147: dtdebug: Found fragment 2 (offset 244)
001252.708: dtdebug: merge_fragment(/soc/i2c@7e804000,/fragment@2/__overlay__)
001252.732: dtdebug:   +prop(#address-cells)
001253.197: dtdebug:   +prop(#size-cells)
001253.669: dtdebug:   +prop(status)
001255.471: dtdebug: merge_fragment(/soc/i2c@7e804000/pcm5122@4d,/fragment@2/__overlay__/pcm5122@4d)
001255.497: dtdebug:   +prop(#sound-dai-cells)
001256.001: dtdebug:   +prop(compatible)
001256.452: dtdebug:   +prop(reg)
001256.929: dtdebug:   +prop(status)
001257.459: dtdebug: merge_fragment() end
001257.485: dtdebug: merge_fragment() end
001257.654: dtparam: arm_freq=900000000
001258.499: dtdebug: Found override arm_freq
001258.534: dtdebug:   override arm_freq: cell target clock-frequency @ offset 0
001261.218: dtdebug:   override arm_freq: cell target clock-frequency @ offset 0
001263.981: dtdebug:   override arm_freq: cell target clock-frequency @ offset 0
001266.826: dtdebug:   override arm_freq: cell target clock-frequency @ offset 0

jbolila February 17, 2015 15:17

after a fresh install:

000845.281: Loading 'kernel.img' from SD card
001111.351: Kernel trailer DTOK property says yes
001111.527: Loading 'bcm2708-rpi-b-plus.dtb' from SD card
001117.001: Loaded overlay 'hifiberry-dacplus'
001121.306: dtdebug: Found fragment 0 (offset 36)
001123.585: dtdebug: merge_fragment(/sound,/fragment@0/__overlay__)
001123.608: dtdebug:   +prop(compatible)
001123.731: dtdebug:   +prop(i2s-controller)
001123.947: dtdebug:   +prop(status)
001124.130: dtdebug: merge_fragment() end
001124.192: dtdebug: Found fragment 1 (offset 168)
001125.363: dtdebug: merge_fragment(/soc/i2s@7e203000,/fragment@1/__overlay__)
001125.386: dtdebug:   +prop(status)
001125.605: dtdebug: merge_fragment() end
001125.689: dtdebug: Found fragment 2 (offset 244)
001127.587: dtdebug: merge_fragment(/soc/i2c@7e804000,/fragment@2/__overlay__)
001127.613: dtdebug:   +prop(#address-cells)
001127.785: dtdebug:   +prop(#size-cells)
001127.966: dtdebug:   +prop(status)
001128.965: dtdebug: merge_fragment(/soc/i2c@7e804000/pcm5122@4d,/fragment@2/__overlay__/pcm5122@4d)
001128.989: dtdebug:   +prop(#sound-dai-cells)
001129.175: dtdebug:   +prop(compatible)
001129.329: dtdebug:   +prop(reg)
001129.505: dtdebug:   +prop(status)
001129.720: dtdebug: merge_fragment() end
001129.747: dtdebug: merge_fragment() end
001130.092: dtparam: arm_freq=900000000
001130.650: dtdebug: /__overrides__ has no arm_freq property
001130.662: Unknown param 'arm_freq' - ignored

Raspbian GNU/Linux 7 (wheezy) - Linux raspberrypi 3.18.7+ #755 PREEMPT Thu Feb 12 17:14:31 GMT 2015 armv6l GNU/Linux

any other recommended img?

Kind regards,

Joao

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HiFiBerry team February 17, 2015 16:41

Is it a plain Raspbian or installed from Noobs? We have seen problems with Noobs-based Raspbian installations.

Best regards
Daniel

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jbolila February 17, 2015 17:05

it's working now with Volumio 1.55

Linux volumio 3.18.5+ #748 PREEMPT Wed Feb 4 21:24:41 GMT 2015 armv6l

Daniel,

Can you post here your /boot/config.txt for raspbian with 3.18.7+ ?

Kind regards,

joao

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HiFiBerry team February 17, 2015 17:16

The config.txt with Raspbian is the same as with the 3.18.5 that Volumio uses. Is is possible that you still have a module blacklisted on your Raspbian installation?

Best regards
Daniel

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