Acer Chromebook 14 CB3-431 Sound

#1

Briefly describe your issue below:
Has anyone had any luck in getting sound to work on the Acer Chromebook 14 via a live USB persistence? I managed to get the problematic display and trackpad to work, but I’ve spent a couple of days google-fu-ing the sound issues and nothing seems to work.

I tried patching with files from https://github.com/GalliumOS/galliumos-braswell, but that didn’t work. Gallium OS works with the machine’s sound setup, I also have that running on a Live USB.

$aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: chtrt5650 [chtrt5650], device 0: Audio () []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: chtrt5650 [chtrt5650], device 1: Deep-Buffer Audio () []
Subdevices: 1/1
Subdevice #0: subdevice #0

lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller (rev 35)

What version of Parrot are you running? (include version (e.g. 4.6), edition(e.g. Home//KDE/OVA, etc.), and architecture (currently we only support amd64)
Security 4.6 amd64
What method did you use to install Parrot? (Debian Standard / Debian GTK / parrot-experimental)
Live USB Standard
Configured to multiboot with other systems? (yes / no)
yes
List your hardware specs to include make, model and firmware (when applicable):
Acer Chromebook 14 CB3-431
If there are any similar issues or solutions, link to them below:

If there are any error messages or relevant logs, post them below:

#2

UPDATE: installed firmware-intel-sound and the speakers are picked up.

In Sound Preferences>Hardware, “Built in Audio 1 Output/2 Inputs” shows, but there is still no sound with volume at max.

‘pulseaudio’ gives a couple of errors.

E: [pulseaudio] pid.c: Daemon already running.
E: [pulseaudio] main.c: pa_pid_file_create() failed.

Any ideas?

#3

firecfg --fix-sound

#4

Thanks for the reply, but I already tried that one and it didn’t help.

#5

Try alsamixer. Run it by typing alsamixer in terminal. Your sound channel might be muted.

#6

Did that too. It’s not muted (00 at the bottom). The card is PulseAudio, and it’s 100% volume, but there is no sound. If I switch the card to HDA Intel PCH, it displays S/PDIF, S/PDIF 1 and S/PDIF 2. I presume that’s for the HDMI output. Then there’s the chtrt5650 card which shows 100s of items that I have no idea about. Nothing in there seems to do anything.

#7

Do you know the name of your audio card? If yes then check whether it is in the /proc/asound/cards file.
Run cat /proc/asound/cards in terminal.

#8

Yeah, my card is chtrt5650 and it’s there in both the cards file and shows in alsamixer cards.

I just found that if I go into my sounds prefs, and switch the “Built-in Audio” prifike from Default to Off and back again, it lets out a banshee shriek and hisses.

#9

adding pulseaudio --start --log-target=syslog to the startup applications might help. But I am not sure.

#10

That didn’t work either. Looks like I’ll be at it a while longer. Oh, well, at least I’m learning as I go.