** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags added: focal
** Summary changed:
- chtmax98090 not working out of the box
+ [chtmax98090 on Bay Trail Chromebooks] audio not working, shows "Dummy Output"
** Also affects: pulseaudio (Ubuntu)
Importance: Unde
** Attachment added: "clapper-lspci-vvnn.txt"
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1833116/+attachment/5343583/+files/clapper-lspci-vvnn.txt
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Having the same issue on a Lenovo N20 "Clapper" Chromebook. Applying the
Git patch crashes PulseAudio for me as well. Can't get any sound to play
at all from the built-in speakers.
dylan@dylan-Clapper:~$ aplay -l
List of PLAYBACK Hardware Devices
card 0: PCH [HDA Intel PCH], device 3: Ge
https://bugzilla.kernel.org/show_bug.cgi?id=201787#c14
Bug is only "fixed" for Swanky and Gnawty chromebooks. They are marked
to use a quirk, as an update breaks sound. To get a fix you should
contact with Hans de Goede (you can in bugzilla) and ask for a fix.
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Attached is the output of the crashlog from 20.04 after applying the git
settings as detailed in the OP and rebooting - Pulseaudio seems to be
crashing.
** Attachment added: "_usr_bin_pulseaudio.1000.crash"
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1833116/+attachment/5333027/
On the latest 18.04.4 ISO, it's a little different. After following the
Github instructions, the chtmax98098 device appears, and there appears
to be output in Pulsemixer when you play sound, but nothing comes out of
the speakers.
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Thanks for the link, but I'm a little confused. That seems to be a patch
for 4.19? I've still got no audio on the C200 on today's daily ISO of
Ubuntu Mate 20.04 out of the box. Kernel version is 5.4.0-14-generic.
Following the instructions to use the settings from the OP to use the
Github repo mak
https://bugzilla.kernel.org/show_bug.cgi?id=201787
** Bug watch added: Linux Kernel Bug Tracker #201787
https://bugzilla.kernel.org/show_bug.cgi?id=201787
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I still have this on the latest 20.04 dailies on an Asus C200 Chromebook (that
also has the
chtmax98090 chip). Even using the Github approach as listed in the OP doesn't
seem to help - it appears in Pulsemixer but I still have no sound output.
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** Changed in: alsa-driver (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1833116
Title:
chtmax98090 not working out of the box
To manage notifications about
** Description changed:
chtmax98090 intel HD audio device doesn't work out of the box after
installing ubuntu (from 14.04 to 18.04). It shows "Dummy Output" on
audio devices.
Audio options shows device and it works if I do this:
- git clone https://github.com/plbossart/UCM.git
- cd
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