I don't have problems running Ubuntu 20.04 LTS with (original, non-HWE
kernel) 5.4 series kernel these days. Granted, I've probably indeed
modified the default.pa as indicated above, and have had a state file
which I've restored - but the kernel is default, and the audio works
fine without any manual state restores on every boot and I can switch
between internal and HDMI audio fine.
I've mostly used the HDMI audio though in recent years so I cannot say
if there would be problems with internal audio in prolonged use.
The reason for not upgrading beyond 5.4 kernel used to be that 5.8
kernel regressed with these low tier Intel graphics, but I recall that
was fixed in later ones so the current Ubuntu 20.04 HWE kernel (5.11)
that comes on eg 20.04.3 installation media might be worth trying again
if wanting excitement to life.
It'd be nice to experiment with out-of-the-box functionality too, which
would be likely easiest done with live USB sticks.
Overall, I think there might not be any kernel bug left here, only
userspace ones. Although it might have easily regressed in more recent
kernels given the low amount of users.
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https://bugs.launchpad.net/bugs/1609750
Title:
Audio not working on Acer Chromebook R11
Status in linux:
Confirmed
Status in linux package in Ubuntu:
In Progress
Status in pulseaudio package in Ubuntu:
Invalid
Bug description:
Audio is not working at all on Acer Chromebook R11 (codename CYAN).
It's a Intel Braswell platform. snd_hda_intel messages seem normal,
but Pulseaudio does not detect sound hardware.
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: pulseaudio 1:9.0-1.1ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-33.52-generic 4.4.15
Uname: Linux 4.4.0-33-generic x86_64
ApportVersion: 2.20.3-0ubuntu2
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/hwC0D2', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p',
'/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer']
failed with exit code 1:
CurrentDesktop: Unity
Date: Thu Aug 4 14:12:03 2016
InstallationDate: Installed on 2016-07-22 (13 days ago)
InstallationMedia:
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: pulseaudio
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/20/2016
dmi.bios.vendor: coreboot
dmi.chassis.type: 3
dmi.chassis.vendor: GOOGLE
dmi.modalias:
dmi:bvncoreboot:bvr:bd05/20/2016:svnGOOGLE:pnCyan:pvr1.0:cvnGOOGLE:ct3:cvr:
dmi.product.name: Cyan
dmi.product.version: 1.0
dmi.sys.vendor: GOOGLE
---
ApportVersion: 2.20.3-0ubuntu2
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/hwC0D2', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p',
'/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer']
failed with exit code 1:
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.10
HibernationDevice: RESUME=UUID=53fe7902-c347-4ff8-945d-a3e3de773a08
InstallationDate: Installed on 2016-07-22 (13 days ago)
InstallationMedia:
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2a Intel Corp.
Bus 001 Device 002: ID 0bda:57cf Realtek Semiconductor Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: GOOGLE Cyan
Package: linux-image-4.4.0-33-generic 4.4.0-33.52
PackageArchitecture: amd64
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-33-generic
root=UUID=742e4082-264a-4459-93df-9ec07b41d5e8 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-33.52-generic 4.4.15
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-4.4.0-33-generic N/A
linux-backports-modules-4.4.0-33-generic N/A
linux-firmware1.159
Tags: yakkety
Uname: Linux 4.4.0-33-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/20/2016
dmi.bios.vendor: coreboot
dmi.chassis.type: 3
dmi.chassis.vendor: GOOGLE
dmi.modalias:
dmi:bvncoreboot:bvr:bd05/20/2016:svnGOOGLE:pnCyan:pvr1.0:cvnGOOGLE:ct3:cvr:
dmi.product.name: Cyan
dmi.product.version: 1.0
dmi.sys.vendor: GOOGLE
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