[MacBookAir6,2] LED-Panel Brightness not adjustable after suspend/resume
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Incomplete
|
Medium
|
Unassigned |
Bug Description
Before suspend & resume the behaviour of the led-backlight pressing F1 or F2 key is adjustable.
Checking the register `/sys/class/
After resume still the full range is triggered with the F1 to F2 keys, but here the backlight is turned off completely for all values less than 2280 and fully turned on for all values greater 2290.
Setting the brightness with `echo 2289 > /sys/class/
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-
ProcVersionSign
Uname: Linux 3.11.0-12-generic x86_64
NonfreeKernelMo
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
Date: Sat Oct 19 11:49:38 2013
EcryptfsInUse: Yes
HibernationDevice: RESUME=
InstallationDate: Installed on 2013-10-17 (1 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Apple Inc. MacBookAir6,2
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.116
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/12/2013
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBA61.88Z.
dmi.board.
dmi.board.name: Mac-7DF21CB3ED6
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookAir6,2
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.
dmi.modalias: dmi:bvnAppleInc
dmi.product.name: MacBookAir6,2
dmi.product.
dmi.sys.vendor: Apple Inc.
summary: |
- LED-Panel Brightness not adjustable after suspend & resume on - MacBookAir6 + [MacBookAir6,2] LED-Panel Brightness not adjustable after suspend/resume |
tags: |
added: kernel-bug-exists-upstream-v3.13-rc3 removed: kernel-bug-exists-upstream-3.13.0-031300rc3-generic |
tags: | added: bios-outdated-mba61.0099.b04 |
tags: | added: latest-bios-mba61.0099.b04 |
This change was made by a bot.