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Message #37907
[Bug 1181927] Re: [Aspire V5-431]13.04: Brightness control visible but does nothing
Thomas Christensen, could you please provide the upstream URL created to
the mailing list archive as per
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/comments/21
?
** Changed in: linux (Ubuntu)
Status: Triaged => Incomplete
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https://bugs.launchpad.net/bugs/1181927
Title:
[Aspire V5-431]13.04: Brightness control visible but does nothing
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
Brightness control visible but does nothing on 13.04...
The brightness up down buttons shows the overlay brightness icon going
up and down but it does not change the brightness (backlight).
I have tried adjusting the kernel options acpi_osi=<x> and
acpi_backlight=<y> (that did work with 12.10) to make it work but to
no avail.
WORKAROUND: echo 20 > /sys/class/backlight/intel_backlight/brightness
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-generic 3.8.0.21.37
ProcVersionSignature: Ubuntu 3.8.0-21.32-generic 3.8.8
Uname: Linux 3.8.0-21-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: thomasc 2007 F.... pulseaudio
Date: Mon May 20 12:45:35 2013
HibernationDevice: RESUME=UUID=2acc4a8c-a645-4f3c-bc8e-5c7a9d9df417
InstallationDate: Installed on 2013-04-11 (38 days ago)
InstallationMedia: Ubuntu-GNOME 13.04 "Raring Ringtail" - Alpha amd64 (20130410)
MachineType: Acer Aspire V5-431
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-21-generic root=UUID=4cfdb2ed-677a-4fd0-aa7d-5b118700bd35 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.8.0-21-generic N/A
linux-backports-modules-3.8.0-21-generic N/A
linux-firmware 1.106
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/12/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: V1.20
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Aspire V5-431
dmi.board.vendor: Acer
dmi.board.version: V1.20
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.20
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV1.20:bd12/12/2012:svnAcer:pnAspireV5-431:pvrV1.20:rvnAcer:rnAspireV5-431:rvrV1.20:cvnAcer:ct9:cvrV1.20:
dmi.product.name: Aspire V5-431
dmi.product.version: V1.20
dmi.sys.vendor: Acer
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