It's working in Ubuntu 15.10!
** Changed in: linux (Ubuntu)
Status: Triaged => Fix Released
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https://bugs.launchpad.net/bugs/925690
Title:
8086:0116 [Acer Aspire 5755G] Screen brightness not adjusting via
hotkeys
Status in Linux:
Confirmed
Status in linux package in Ubuntu:
Fix Released
Bug description:
I'm using a freshly installed Saucy x64. When I press fn+left/right arrow
keys the brightness of the screen doesn't change and there is no bar appearing
on the top right corner indicating the change in brightness.
This laptop has two video cards: nVidia 540M and an integrated Intel HD
Graphics 3000.
If the nVidia card is disabled in BIOS the top right bar appears but the
brightness still does not change.
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: krychek 2147 F.... pulseaudio
/dev/snd/pcmC0D0p: krychek 2147 F...m pulseaudio
CurrentDmesg:
WORKAROUND: I'm able to adjust the brightness after adding the
acpi_backlight=vendor kernel parameter.
DistroRelease: Ubuntu 13.10
HibernationDevice: RESUME=UUID=5dc00776-6f67-42d1-9985-15bf84510b70
InstallationDate: Installed on 2013-10-30 (3 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64
(20131016.1)
MachineType: Acer Aspire 5755G
MarkForUpload: True
NonfreeKernelModules: wl
Package: linux (not installed)
ProcFB:
0 inteldrmfb
1 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic
root=UUID=d4c46cde-ec44-4da4-b4ec-a67f7b892126 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
RelatedPackageVersions:
linux-restricted-modules-3.11.0-12-generic N/A
linux-backports-modules-3.11.0-12-generic N/A
linux-firmware 1.116
Tags: saucy
Uname: Linux 3.11.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 08/09/2012
dmi.bios.vendor: Acer
dmi.bios.version: V1.21
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JV51_HR
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.21
dmi.modalias:
dmi:bvnAcer:bvrV1.21:bd08/09/2012:svnAcer:pnAspire5755G:pvrV1.21:rvnAcer:rnJV51_HR:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.21:
dmi.product.name: Aspire 5755G
dmi.product.version: V1.21
dmi.sys.vendor: Acer
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