This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report[0]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.
Please follow the instructions on the wiki page[0]. The first step is to email the appropriate mailing list. If no response is received, then a bug may be opened on bugzilla.kernel.org. Once this bug is reported upstream, please add the tag: 'kernel-bug- reported-upstream'. [0] https://wiki.ubuntu.com/Bugs/Upstream/kernel ** Changed in: linux (Ubuntu) Status: Confirmed => Triaged -- 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/1169386 Title: Toshiba satellite A660: topmost keys all produce the same scancode Status in “linux” package in Ubuntu: Triaged Bug description: Toshiba satellite A660 backlight just never worked on ubuntu. Here is an outline of some of the LEDS in a toshiba http://i.imgur.com/l54s5CP.jpg When i press Fn+Z the ubuntu keyboard LED notification shows up, however nothing changes. so i navigated to /sys/devices/pci0000:00/0000:00:1c.4/0000:16:00.0/firmware_node/subsystem/devices/TOS1900:00/leds/toshiba::illumination/device/leds/toshiba::illumination found files brightness device max_brightness power subsystem trigger uevent when i changed the value in brightness from 0 to 1 LED 1, 2, and 3 in the above picture turns on, and led 1 turns off when touch bad is off. However there is no keyboard backlight.upon boot the backboard backlight works while posting and shutdown when grub loads. When i disable acpi the keyboard backlight works however ill lose other functionalities like brightness. Any way to fix it? There is also another directory. /sys/devices/pci0000:00/0000:00:1c.4/0000:16:00.0/firmware_node/subsystem/devices/TOS1900:00/leds/toshiba::illumination/device/leds/toshiba::illumination/subsystem/mmc0:: with files brightness device max_brightness power subsystem trigger uevent nothing happens when brightness value changes. LSB Version: core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch Distributor ID: Ubuntu Description: Ubuntu Raring Ringtail (development branch) Release: 13.04 Codename: raring Linux mouhanad-Satellite-A660 3.8.0-18-generic #28-Ubuntu SMP Thu Apr 11 19:38:55 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux #Problem also exists in older version of ubuntu, new kernel in 13.04 does not solve the problems. xev shows a key being pressed and being mapped to kbdbacklight. A a notification that keyboard is being turned on appears when Fn+Z is pressed. Also unlike other manufactures toshiba doesn't have brightness on backlit keyboards, its either on or off or a timer. --- ApportVersion: 2.12.4-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: mouhanad 1897 F.... pulseaudio /dev/snd/controlC0: mouhanad 1897 F.... pulseaudio DistroRelease: Ubuntu 13.10 InstallationDate: Installed on 2013-09-21 (0 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130921) MachineType: TOSHIBA Satellite A660 MarkForUpload: True NonfreeKernelModules: nvidia wl Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-8-generic root=UUID=c0f8cd4d-48a4-485d-89d7-af4e14df5d34 ro quiet splash ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1 RelatedPackageVersions: linux-restricted-modules-3.11.0-8-generic N/A linux-backports-modules-3.11.0-8-generic N/A linux-firmware 1.114 Tags: saucy Uname: Linux 3.11.0-8-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 11/24/11 dmi.bios.vendor: TOSHIBA dmi.bios.version: 2.30 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: NWQAA dmi.board.vendor: TOSHIBA dmi.board.version: 1.00 dmi.chassis.asset.tag: * dmi.chassis.type: 9 dmi.chassis.vendor: TOSHIBA dmi.chassis.version: N/A dmi.modalias: dmi:bvnTOSHIBA:bvr2.30:bd11/24/11:svnTOSHIBA:pnSatelliteA660:pvrPSAW3C-0T4017:rvnTOSHIBA:rnNWQAA:rvr1.00:cvnTOSHIBA:ct9:cvrN/A: dmi.product.name: Satellite A660 dmi.product.version: PSAW3C-0T4017 dmi.sys.vendor: TOSHIBA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1169386/+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