enabling the audio jack on the 20-04 mate with kernel 4.9

[odroidn2user]

Anyone found out yet how to get the audio jack to work on the N2 (or N2Plus) using the Hardkernel 20-04 Mate image using kernel 4.9?
There is only one audio device available, audio over HDMI. My monitor doesn't have audio, so... no audio for me.

Anyone figure this out already?

I'd love to plug in some headphones / speakers and get some audio out over the audio jack.

The 20-04 Mate image is pretty sweet, by the way.
(Just don't watch any video files, the default setup is not that smooth.)

I used the download link from:
http://de.eu.odroid.in/ubuntu_20.04lts/n2/

[odroidn2user]

Kernel 4.9.230 seems to have an issue in sound drivers.
We will look into that early next week.

[cap00k]

When checking a sound card with the aplay command, if it comes out as below, you need to edit the /etc/pulse/default.pa file.

Code: Select all

odroid@odroid:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: AMLAUGESOUND [AML-AUGESOUND], device 0: SPDIF-B-dit-hifi dit-hifi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: AMLAUGESOUND [AML-AUGESOUND], device 1: TDM-C-T9015-audio-hifi T9015-audio-hifi-1 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: AMLAUGESOUND [AML-AUGESOUND], device 2: SPDIF-dit-hifi dit-hifi-2 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Please check the attached file.
After unzip and replace the /etc/pulse/default.pa file and rebooting, you can select "Audio Jack" in "sound preferences".

I added 3 lines below for attachments.

Code: Select all

load-module module-alsa-sink device="hw:0,0" sink_name=hdmi_out sink_properties="device.description='HDMI Out' device.icon_name='video-display'"
load-module module-alsa-sink device="hw:0,1" sink_name=line_out sink_properties="device.description='Audio Jack' device.icon_name='audio-headphones'"
load-module module-alsa-sink device="hw:0,2" sink_name=spdif_out sink_properties="device.description='SPDIF Out' device.icon_name='audio-speakers'"

[meveric]

Kernel 4.9.230 seems to have an issue in sound drivers.
We will look into that early next week.

The current github repo is still on Kernel 4.9.219, but I can see that for download Kernel 4.9.230 is already available.
Can you please update the github sources, so we can build new Kernels as well?
Same goes for the other Kernels, or was the github repo moved to another location?

[tobetter]

Kernel 4.9.230 seems to have an issue in sound drivers.
We will look into that early next week.

The current github repo is still on Kernel 4.9.219, but I can see that for download Kernel 4.9.230 is already available.
Can you please update the github sources, so we can build new Kernels as well?
Same goes for the other Kernels, or was the github repo moved to another location?

It's already there but the default branch was not changed.
https://github.com/hardkernel/linux/tre ... dg12-4.9.y

[meveric]

so you're using odroidg12-4.9.y for both the N2 and C4 now, instead of the odroidn2-4.9.y branch.
That's good to know, thanks.

[tobetter]

so you're using odroidg12-4.9.y for both the N2 and C4 now, instead of the odroidn2-4.9.y branch.
That's good to know, thanks.

Yes, it is. You can build the kernel image with odroidg12_defconfig, this will make you have the universal Image.gz and each board will run with their own device tree file. The branch odroidn2-4.9.y branch is note removed for back up, but not going to be used.