I built the next test kernel, up to the following commit: 151173e8ce9b95bbbbd7eedb9035cfaffbdb7cb2
The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1354710 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1354710/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
