Public bug reported:
The screen brightness will go to the lowest setting when plugging in or
unplugging the charger from my laptop. It doesn't always do this but 70%
of the time.
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: linux-image-5.8.0-29-generic 5.8.0-29.31
ProcVersionSignature: Ubuntu 5.8.0-29.31-generic 5.8.14
Uname: Linux 5.8.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: dustin 1782 F.... pulseaudio
/dev/snd/controlC1: dustin 1782 F.... pulseaudio
/dev/snd/controlC0: dustin 1782 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Nov 20 14:14:10 2020
InstallationDate: Installed on 2020-07-15 (128 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Acer Swift SF314-42
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-29-generic
root=UUID=d498d6fe-a45c-4a33-a6d1-b036da243cb3 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.8.0-29-generic N/A
linux-backports-modules-5.8.0-29-generic N/A
linux-firmware 1.190.1
SourcePackage: linux
UpgradeStatus: Upgraded to groovy on 2020-11-10 (10 days ago)
dmi.bios.date: 06/08/2020
dmi.bios.release: 1.4
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.04
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Kona_RN
dmi.board.vendor: RO
dmi.board.version: V1.04
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.04
dmi.ec.firmware.release: 1.4
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.04:bd06/08/2020:br1.4:efr1.4:svnAcer:pnSwiftSF314-42:pvrV1.04:rvnRO:rnKona_RN:rvrV1.04:cvnAcer:ct10:cvrV1.04:
dmi.product.family: Swift 3
dmi.product.name: Swift SF314-42
dmi.product.sku: 0000000000000000
dmi.product.version: V1.04
dmi.sys.vendor: Acer
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug groovy wayland-session
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https://bugs.launchpad.net/bugs/1905093
Title:
Screen brightness doesn't remember current setting when plugging in or
unplugging AC power
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