Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-oem-5.4 (Ubuntu)
Status: New => Confirmed
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1871330
Title:
Dell XPS 13 (7390) brightness is not adjustable with recent kernel
update
Status in linux-oem-5.4 package in Ubuntu:
Confirmed
Bug description:
uname -a shows:
Linux rocinante 5.4.0-1002-oem #4-Ubuntu SMP Wed Jan 15 10:44:42 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
I believe this bug is related to
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1862835 and
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1858844
This was broken then began working with kernel 5.4.0-18 however it is
now broken again.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-1002-oem 5.4.0-1002.4
ProcVersionSignature: Ubuntu 5.4.0-1002.4-oem 5.4.8
Uname: Linux 5.4.0-1002-oem x86_64
ApportVersion: 2.20.11-0ubuntu24
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: chasinglogic 17213 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 7 09:55:19 2020
InstallationDate: Installed on 2020-04-06 (1 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
MachineType: Dell Inc. XPS 13 7390
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-1002-oem
root=UUID=bf15f889-42e1-4e25-b73e-4b05806483ae ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-1002-oem N/A
linux-backports-modules-5.4.0-1002-oem N/A
linux-firmware 1.187
SourcePackage: linux-oem-5.4
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 11/25/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.4.0
dmi.board.name: 0377MH
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.4.0:bd11/25/2019:svnDellInc.:pnXPS137390:pvr:rvnDellInc.:rn0377MH:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 7390
dmi.product.sku: 0962
dmi.sys.vendor: Dell Inc.
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