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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1448485
Title:
kernel don't recognize laptop backlight fn keys
Status in linux package in Ubuntu:
Confirmed
Bug description:
I'm using Ubuntu 15.04 and fn+f7 and fn+f8 use to lower and higher the
brightness of the screen.
In slackware using kernel 3.14.33 those keys works and give output from
acpi_listen.
In kernel 3.16 to 4.0 those keys don't work and acpi_listen outputs nothing.
I expected fn+f7 and fn+f8 to work
https://bugzilla.kernel.org/show_bug.cgi?id=60670
This bug my be related
This is my first bug report.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-15-generic 3.19.0-15.15 [modified:
boot/vmlinuz-3.19.0-15-generic]
ProcVersionSignature: Ubuntu 3.19.0-15.15-lowlatency 3.19.3
Uname: Linux 3.19.0-15-lowlatency x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: marbangens 1334 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat Apr 25 17:04:30 2015
HibernationDevice: RESUME=UUID=22f95b90-3ec0-4b6d-9e76-13042dc0a290
InstallationDate: Installed on 2015-04-23 (1 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: Hewlett-Packard Compaq Presario CQ60 Notebook PC
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-lowlatency
root=UUID=d4f39d6b-137e-4248-81cb-ce920cdee909 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.19.0-15-lowlatency N/A
linux-backports-modules-3.19.0-15-lowlatency N/A
linux-firmware 1.143
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UdevLog: Error: [Errno 2] Filen eller katalogen finns inte: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/18/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.54
dmi.board.name: 303C
dmi.board.vendor: Wistron
dmi.board.version: 08.60
dmi.chassis.type: 10
dmi.chassis.vendor: Wistron
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnHewlett-Packard:bvrF.54:bd08/18/2009:svnHewlett-Packard:pnCompaqPresarioCQ60NotebookPC:pvrF.54:rvnWistron:rn303C:rvr08.60:cvnWistron:ct10:cvrN/A:
dmi.product.name: Compaq Presario CQ60 Notebook PC
dmi.product.version: F.54
dmi.sys.vendor: Hewlett-Packard
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