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Message #83680
[Bug 1354710] Re: Backlight control does not work, but there are entries in /sys/class/backlight. Lenovo B570
could you recheck the kernels are in the right folders as
there are no test kernels in a50188dae3089dcd15a6ae793528c157680891f1
when there should be one (according to the bisect log)
and there are two sets in 94a409319561ec1847fd9bf996a2d5843ad00932
so I am unsure if the folders the kernels are in reflect the commits
accurately
will test once clarified
thanks
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https://bugs.launchpad.net/bugs/1354710
Title:
Backlight control does not work, but there are entries in
/sys/class/backlight. Lenovo B570
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
Laptop model: Lenovo B570
package version: Ubuntu 3.13.0-32.57-generic 3.13.11.4
I expected the keys for changeing the backlight brightness to work
they had no effect on the backlight
further details in attatched Tar
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-32-generic 3.13.0-32.57
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic i686
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: x321x321 1977 F.... pulseaudio
Date: Sat Aug 9 16:11:34 2014
HibernationDevice: RESUME=UUID=61c2c6a6-4b45-4af0-941a-dadf05ad0aba
InstallationDate: Installed on 2014-07-31 (8 days ago)
InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release i386 (20140723)
MachineType: LENOVO 1068FJG
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=7
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.13.0-32-generic N/A
linux-backports-modules-3.13.0-32-generic N/A
linux-firmware 1.127.5
SourcePackage: linux
StagingDrivers: rts5139
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/11/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 44CN36WW
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Emerald Lake
dmi.board.vendor: LENOVO
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnLENOVO:bvr44CN36WW:bd07/11/2011:svnLENOVO:pn1068FJG:pvrLenovoB570:rvnLENOVO:rnEmeraldLake:rvrFAB1:cvnLENOVO:ct10:cvr0.1:
dmi.product.name: 1068FJG
dmi.product.version: Lenovo B570
dmi.sys.vendor: LENOVO
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References