No audio on Acer c730 Chromebook

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RedCMD

No audio on Acer c730 Chromebook

Post by RedCMD »

I've put my Acer c730 Chromebook in dev mode
Installed sea bios via https://mrchromebox.tech/#fwscript
Booted from USB and installed Linux Mint 18.3 kde debian

There is no audio coming from the builtin speakers or the headphone jack
(Audio works fine on Chrome OS)
The system is update to date (as far as I know)
Is there a driver that I'm able to install?
Do I have to upgrade to Mint 19?

EDIT
This is the output from running "aplay -l" and "inxi -A" in Linux

username@Chromebook-PC ~ $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: chtmax98090 [chtmax98090], device 0: Audio (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: chtmax98090 [chtmax98090], device 1: Deep-Buffer Audio (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
username@Chromebook-PC ~ $ inxi -A
Audio: Card Intel Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller driver: chtmax98090
Sound: Advanced Linux Sound Architecture v: k4.15.0-32-generic


And this is the output from running "aplay -l" from Chrome OS's crosh

chronos@localhost / $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: bytmax98090 [byt-max98090], device 0: Audio HiFi-0 []
Subdevices: 0/1
Subdevice #0: subdevice #0
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
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MrEen
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

Hi RedCMD, and welcome to the forum.

See if the instructions on this page help. You'll have to scroll about half way down to "Audio: Alsa Use Case Manager definitions"

I have read a couple of very similar instructions for audio on Chromebooks running linux, such as this site so it should be pretty safe.
RedCMD

Re: No audio on Acer c730 Chromebook

Post by RedCMD »

I followed the instructions on https://erdnaxe.github.io/chromebook-linux/
Audio starting working via turning the volume up and down would play the beeping sounds
for the first 30sec audio sounded a bit funny, but then cleared up nicely
Audio from youtube didn't work, but a restart fixed that
All audio works fine now.
Thx :P
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MrEen
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

That's great! Nice work. :)
RedCMD

Re: No audio on Acer c730 Chromebook

Post by RedCMD »

I wasn't able to test before
But it doesn't auto change from speakers to headphones when I plug them in
and vice versa with unplugging the headphones and not auto changing back to speakers
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MrEen
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

Ok. This might fix that.

In the terminal type kdesudo xed /etc/pulse/default.pa (replace xed with your text editor) and see if this line is commented out like so:

Code: Select all

#load-module module-switch-on-port-available
If it is, remove the # in front, save the file, issue pulseaudio -k in the terminal, wait a moment then test.
RedCMD

Re: No audio on Acer c730 Chromebook

Post by RedCMD »

It was already enabled

Code: Select all

#!/usr/bin/pulseaudio -nF
#
# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.

# This startup script is used only if PulseAudio is started per-user
# (i.e. not in system mode)

.nofail

### Load something into the sample cache
#load-sample-lazy x11-bell /usr/share/sounds/freedesktop/stereo/bell.oga
#load-sample-lazy pulse-hotplug /usr/share/sounds/freedesktop/stereo/device-added.oga
#load-sample-lazy pulse-coldplug /usr/share/sounds/freedesktop/stereo/device-added.oga
#load-sample-lazy pulse-access /usr/share/sounds/freedesktop/stereo/message.oga

.fail

### Automatically restore the volume of streams and devices
load-module module-device-restore
load-module module-stream-restore
load-module module-card-restore

### Automatically augment property information from .desktop files
### stored in /usr/share/application
load-module module-augment-properties

### Should be after module-*-restore but before module-*-detect
load-module module-switch-on-port-available

### Load audio drivers statically
### (it's probably better to not load these drivers manually, but instead
### use module-udev-detect -- see below -- for doing this automatically)
#load-module module-alsa-sink
#load-module module-alsa-source device=hw:1,0
#load-module module-oss device="/dev/dsp" sink_name=output source_name=input
#load-module module-oss-mmap device="/dev/dsp" sink_name=output source_name=input
#load-module module-null-sink
#load-module module-pipe-sink

### Automatically load driver modules depending on the hardware available
.ifexists module-udev-detect.so
load-module module-udev-detect
.else
### Use the static hardware detection module (for systems that lack udev support)
load-module module-detect
.endif

### Automatically connect sink and source if JACK server is present
.ifexists module-jackdbus-detect.so
.nofail
load-module module-jackdbus-detect channels=2
.fail
.endif

### Automatically load driver modules for Bluetooth hardware
.ifexists module-bluetooth-policy.so
load-module module-bluetooth-policy
.endif

.ifexists module-bluetooth-discover.so
load-module module-bluetooth-discover
.endif

### Load several protocols
.ifexists module-esound-protocol-unix.so
load-module module-esound-protocol-unix
.endif
load-module module-native-protocol-unix

### Network access (may be configured with paprefs, so leave this commented
### here if you plan to use paprefs)
#load-module module-esound-protocol-tcp
#load-module module-native-protocol-tcp
#load-module module-zeroconf-publish

### Load the RTP receiver module (also configured via paprefs, see above)
#load-module module-rtp-recv

### Load the RTP sender module (also configured via paprefs, see above)
#load-module module-null-sink sink_name=rtp format=s16be channels=2 rate=44100 sink_properties="device.description='RTP Multicast Sink'"
#load-module module-rtp-send source=rtp.monitor

### Load additional modules from GConf settings. This can be configured with the paprefs tool.
### Please keep in mind that the modules configured by paprefs might conflict with manually
### loaded modules.
.ifexists module-gconf.so
.nofail
load-module module-gconf
.fail
.endif

### Automatically restore the default sink/source when changed by the user
### during runtime
### NOTE: This should be loaded as early as possible so that subsequent modules
### that look up the default sink/source get the right value
load-module module-default-device-restore

### Automatically move streams to the default sink if the sink they are
### connected to dies, similar for sources
load-module module-rescue-streams

### Make sure we always have a sink around, even if it is a null sink.
load-module module-always-sink

### Honour intended role device property
load-module module-intended-roles

### Automatically suspend sinks/sources that become idle for too long
load-module module-suspend-on-idle

### If autoexit on idle is enabled we want to make sure we only quit
### when no local session needs us anymore.
.ifexists module-console-kit.so
load-module module-console-kit
.endif
.ifexists module-systemd-login.so
load-module module-systemd-login
.endif

### Enable positioned event sounds
load-module module-position-event-sounds

### Cork music/video streams when a phone stream is active
#load-module module-role-cork

### Modules to allow autoloading of filters (such as echo cancellation)
### on demand. module-filter-heuristics tries to determine what filters
### make sense, and module-filter-apply does the heavy-lifting of
### loading modules and rerouting streams.
load-module module-filter-heuristics
load-module module-filter-apply

# X11 modules should not be started from default.pa so that one daemon
# can be shared by multiple sessions.

### Load X11 bell module
#load-module module-x11-bell sample=x11-bell

### Register ourselves in the X11 session manager
#load-module module-x11-xsmp

### Publish connection data in the X11 root window
#.ifexists module-x11-publish.so
#.nofail
#load-module module-x11-publish
#.fail
#.endif

### Make some devices default
#set-default-sink output
#set-default-source input
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MrEen
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

Damn. That Chromebook really doesn't want you using linux, does it?

Seeing as that last instruction was for pulseaudio, lets try a purge/reinstall and see if that fixes it. Do these one line at a time:

Code: Select all

killall pulseaudio
sudo apt-get remove --purge pulseaudio
sudo apt-get install pulseaudio
pulseaudio --start
Normally, I'd do alsa-base along with pulseaudio, but in your case I'm hesitant to add that as I'm not fully aware of what that earlier fix changed. So let's see if this is enough to get you fixed.
RedCMD

Re: No audio on Acer c730 Chromebook

Post by RedCMD »

Now theres no audio lol
The speaker icon down the right bottom is gone
Should I follow these instructions again? https://erdnaxe.github.io/chromebook-linux/
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MrEen
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

Let's try it this way. Do each line one at a time:

Code: Select all

sudo apt-get remove --purge alsa-base pulseaudio
sudo apt-get install alsa-base pulseaudio
Then go to that page and redo that as well.

Sorry for the trouble!
RedCMD

Re: No audio on Acer c730 Chromebook

Post by RedCMD »

No worrys
Audio works but the speaker icon is still missing and I cant change the volume via volume shortcuts
Last edited by RedCMD on Mon Aug 27, 2018 5:39 pm, edited 1 time in total.
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MrEen
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

Try apt install indicator-sound
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

Also, in case you haven't already, a reboot might be in order.
RedCMD

Re: No audio on Acer c730 Chromebook

Post by RedCMD »

Didn't do anything :(
and yea I've been rebooting
I switched headphones and these ones make a really loud buzzing sound when plugging in
Tho on Chrome OS they don't :?
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MrEen
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

Damn! Maybe that's why it wasn't detecting the change before. :lol:

I'm going to have to think on this for a bit, I'm afraid.
RedCMD

Re: No audio on Acer c730 Chromebook

Post by RedCMD »

Just a small list of current issues
Speaker icon missing
Volume shortcuts don't work
Headphone makes buzzing noise when plugging in
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MrEen
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

The only suggestion at the moment is delete the files (not folders if there are any) from ~/.config/pulse/ then issue pulseaudio -k in the terminal. Wait a moment then test.

That might fix everything. And it might fix nothing.

I'll keep thinking.
RedCMD

Re: No audio on Acer c730 Chromebook

Post by RedCMD »

Didn't change anything
Man Chromebooks are a pain, can be really hard to get anything working on them
Did you know that Chrome OS logs how many times you've power washed the device
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MrEen
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Re: No audio on Acer c730 Chromebook

Post by MrEen »

Oops. KDE = apt install kmix
RedCMD

Re: No audio on Acer c730 Chromebook

Post by RedCMD »

lol
Still did nothing :(
oh and my wifi is disabled whenever I start Linux
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