Public bug reported:
What you expected to happen:
When you push Fn+F5 brightness of screen of Asus K55VD notebook decreases.
When you push Fn+F6 brightness of screen of Asus K55VD notebook increases.
What happened instead:
Hot keys that adjust brightness (Fn+F5, Fn+F6) don't work. Brightness stays the
same.
Partial workaround:
1. sudo gedit /etc/default/grub
2. find the line starting with GRUB_CMDLINE_LINUX_DEFAULT
3. add "acpi_osi=" to the options
4. sudo update-grub2
5. reboot
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-22-generic 3.5.0-22.34
ProcVersionSignature: Ubuntu 3.5.0-22.34-generic 3.5.7.2
Uname: Linux 3.5.0-22-generic x86_64
ApportVersion: 2.6.1-0ubuntu9
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: dima 1524 F.... xfce4-volumed
dima 1551 F.... pulseaudio
/dev/snd/pcmC0D0p: dima 1551 F...m pulseaudio
CRDA:
country RU:
(2402 - 2482 @ 40), (N/A, 20)
(5735 - 5835 @ 20), (N/A, 30)
Date: Wed Jan 23 22:27:42 2013
HibernationDevice: RESUME=UUID=735e4e23-42a8-40ce-8672-60b4447079ba
InstallationDate: Installed on 2013-01-18 (4 days ago)
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MachineType: ASUSTeK COMPUTER INC. K55VD
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-22-generic
root=UUID=b52f24d4-675a-4a0b-a25a-d4b77050e29e ro quiet splash acpi_osi=
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.5.0-22-generic N/A
linux-backports-modules-3.5.0-22-generic N/A
linux-firmware 1.95
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/09/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: K55VD.406
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K55VD
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrK55VD.406:bd11/09/2012:svnASUSTeKCOMPUTERINC.:pnK55VD:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnK55VD:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: K55VD
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug quantal
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https://bugs.launchpad.net/bugs/1103620
Title:
Adjusting brightness with hot keys doesn't work properly on Asus K55VD
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