Under Kernel 3.13 and 3.15.0-031500-generic the Toshiba hotkeys Fn+F6 and Fn+F7 to control screen brightness (Satellite L300) only work after manually suspending through the system tray drop down menu and then resuming. Note the Suspend Hotkey Fn+F3 only works after manually suspending and resuming at least once. Hotkeys are lost on the next reboot or cold boot.
As a workaround I usually manually suspend and resume immediately after each boot. In /usr/rc.local you can echo 3 or 4 to the graphics driver so your eyeballs don't fry from solar bright screen on boot ups. That workaround is documented in many Ubuntu forum threads. -- 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/1326161 Title: [Toshiba Satellite P70-A] Brightness Hotkey Doesn't Work Status in “linux” package in Ubuntu: Triaged Bug description: I followed the steps at https://wiki.ubuntu.com/Hotkeys/Troubleshooting and found that the brightness keys are only detected with acpi_listen, which apparently means "this is a bug in the kernel (ubuntu-bug linux) for not translating the ACPI event to an input event" Brightness down and up create the following output with acpi_listen, respectively: button/battery BAT 00000080 00000000 K button/sleep SBTN 00000080 00000000 K ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 [modified: boot/vmlinuz-3.13.0-24-generic] ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: drdanielfc 1816 F.... pulseaudio /dev/snd/controlC1: drdanielfc 1816 F.... pulseaudio CurrentDesktop: Unity Date: Tue Jun 3 18:34:43 2014 HibernationDevice: RESUME=UUID=5749c544-7f19-4560-85cf-afb651d8e76f InstallationDate: Installed on 2014-06-03 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: TOSHIBA Satellite P70-A ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=b07e9797-ecf0-4bfd-a13c-1f1c53c509f1 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/18/2014 dmi.bios.vendor: Insyde Corp. dmi.bios.version: 1.50 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: Type2 - Board Product Name1 dmi.board.vendor: Type2 - Board Vendor Name1 dmi.board.version: Type2 - Board Version dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: OEM Chassis Manufacturer dmi.chassis.version: OEM Chassis Version dmi.modalias: dmi:bvnInsydeCorp.:bvr1.50:bd04/18/2014:svnTOSHIBA:pnSatelliteP70-A:pvrPSPLPU-0JS050:rvnType2-BoardVendorName1:rnType2-BoardProductName1:rvrType2-BoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion: dmi.product.name: Satellite P70-A dmi.product.version: PSPLPU-0JS050 dmi.sys.vendor: TOSHIBA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1326161/+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
