I will check 3.10 and earlier 3.11 RCs to see if I can narrow it down. On 6 September 2013 11:47, Joseph Salisbury <joseph.salisb...@canonical.com> wrote: > Did this issue start happening after an update/upgrade? Was there a > kernel version where you were not having this particular problem? This > will help determine if the problem you are seeing is the result of the > introduction of a regression, and when this regression was introduced. > If this is a regression, we can perform a kernel bisect to identify the > commit that introduced the problem. > > ** Changed in: linux (Ubuntu) > Importance: Undecided => Medium > > ** Changed in: linux (Ubuntu) > Status: Confirmed => Incomplete > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1221795 > > Title: > brightness stepping is incorrect (double what it should be) > > Status in “linux” package in Ubuntu: > Incomplete > > Bug description: > Problem: When I press the laptop screen brighteness, each step yield > an event that is displayed on the OSD but the screen brightness > doesn't change until the third press. Same happens for decreasing or > increasing the brightness. > > Exepcted behaviour: Each press of the brightness button on the laptop, > yield a visible change in the brightness of the LCD scree. > > Workaround: This seems documented and works perfectly. The work around > is to type this in terminal: > > sudo sh -c 'echo -n 0 > > /sys/module/video/parameters/brightness_switch_enabled' > > More details are here: http://askubuntu.com/questions/173921/why-does- > my-thinkpad-brightness-control-skip-steps > > I think this should be fixed in 13.10. > > ProblemType: Bug > DistroRelease: Ubuntu 13.10 > Package: linux-image-3.11.0-4-generic 3.11.0-4.9 > ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7 > Uname: Linux 3.11.0-4-generic x86_64 > ApportVersion: 2.12.1-0ubuntu3 > Architecture: amd64 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/controlC0: anmar 1798 F.... pulseaudio > Date: Fri Sep 6 11:23:20 2013 > HibernationDevice: RESUME=UUID=2e39ee55-2a87-4298-a2d0-1c8ef5de5a96 > InstallationDate: Installed on 2013-08-09 (27 days ago) > InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130809) > MachineType: LENOVO 3443CTO > MarkForUpload: True > ProcFB: 0 inteldrmfb > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-4-generic.efi.signed > root=UUID=1784df7c-8b5f-4550-84f2-13e73c2915fe ro quiet splash vt.handoff=7 > RelatedPackageVersions: > linux-restricted-modules-3.11.0-4-generic N/A > linux-backports-modules-3.11.0-4-generic N/A > linux-firmware 1.113 > SourcePackage: linux > UpgradeStatus: No upgrade log present (probably fresh install) > dmi.bios.date: 04/29/2013 > dmi.bios.vendor: LENOVO > dmi.bios.version: G6ET96WW (2.56 ) > dmi.board.asset.tag: Not Available > dmi.board.name: 3443CTO > dmi.board.vendor: LENOVO > dmi.board.version: Win8 STD DPK TPG > dmi.chassis.asset.tag: No Asset Information > dmi.chassis.type: 10 > dmi.chassis.vendor: LENOVO > dmi.chassis.version: Not Available > dmi.modalias: > dmi:bvnLENOVO:bvrG6ET96WW(2.56):bd04/29/2013:svnLENOVO:pn3443CTO:pvrThinkPadX1Carbon:rvnLENOVO:rn3443CTO:rvrWin8STDDPKTPG:cvnLENOVO:ct10:cvrNotAvailable: > dmi.product.name: 3443CTO > dmi.product.version: ThinkPad X1 Carbon > dmi.sys.vendor: LENOVO > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1221795/+subscriptions
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1221795 Title: brightness stepping is incorrect (double what it should be) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1221795/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
