Public bug reported:
I've installed 14.04 from scratch but had this issue under 13.10 too.
The key combination Fn+<brightness up/down> trigger the brightness
overlay in the top right corner but the actual brightness does not
change. See attached screenshot
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-29-generic 3.13.0-29.53
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
Uname: Linux 3.13.0-29-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: seb 1951 F.... pulseaudio
/dev/snd/pcmC0D0p: seb 1951 F...m pulseaudio
CurrentDesktop: Unity
Date: Wed Jun 18 22:25:22 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-06-14 (3 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64+mac (20140417)
MachineType: LENOVO 10247MM
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic
root=UUID=4424b647-bd6c-425e-bc1f-a170d430217d ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-29-generic N/A
linux-backports-modules-3.13.0-29-generic N/A
linux-firmware 1.127.2
SourcePackage: linux
StagingDrivers: rts5139
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 10/21/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 45CN38WW
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:bvr45CN38WW:bd10/21/2011:svnLENOVO:pn10247MM:pvrIdeapadZ570:rvnLENOVO:rnEmeraldLake:rvrFAB1:cvnLENOVO:ct10:cvr0.1:
dmi.product.name: 10247MM
dmi.product.version: Ideapad Z570
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug staging trusty
** Attachment added: "Screenshot from 2014-06-18 22:25:31.png"
https://bugs.launchpad.net/bugs/1331442/+attachment/4134118/+files/Screenshot%20from%202014-06-18%2022%3A25%3A31.png
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https://bugs.launchpad.net/bugs/1331442
Title:
Screen Brightness keys do not work on Lenovo IdeaPad Z570
Status in “linux” package in Ubuntu:
New
Bug description:
I've installed 14.04 from scratch but had this issue under 13.10 too.
The key combination Fn+<brightness up/down> trigger the brightness
overlay in the top right corner but the actual brightness does not
change. See attached screenshot
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-29-generic 3.13.0-29.53
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
Uname: Linux 3.13.0-29-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: seb 1951 F.... pulseaudio
/dev/snd/pcmC0D0p: seb 1951 F...m pulseaudio
CurrentDesktop: Unity
Date: Wed Jun 18 22:25:22 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-06-14 (3 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64+mac
(20140417)
MachineType: LENOVO 10247MM
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic
root=UUID=4424b647-bd6c-425e-bc1f-a170d430217d ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-29-generic N/A
linux-backports-modules-3.13.0-29-generic N/A
linux-firmware 1.127.2
SourcePackage: linux
StagingDrivers: rts5139
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 10/21/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 45CN38WW
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:bvr45CN38WW:bd10/21/2011:svnLENOVO:pn10247MM:pvrIdeapadZ570:rvnLENOVO:rnEmeraldLake:rvrFAB1:cvnLENOVO:ct10:cvr0.1:
dmi.product.name: 10247MM
dmi.product.version: Ideapad Z570
dmi.sys.vendor: LENOVO
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