Thank you for your reply. I will test kernel 3.15 and revert with news (probably later on today).
In the meantime and after reading various reported bugs, I came accross this one: http://www.aristofunnies.gr/wp-content/uploads/2010/12/photo-12.jpeg It regards dell xps13, but refers to the exact same GPU (id 8086:0116). As you will read, the same problem persists especially on kernels after the 3.8, and they way to fix the fn function of the brightness keys in newer kernels is to set from the BIOS the "Load Legacy Option Rom" to "Enabled". Unfortunately even if I have installed the lasted version of BIOS proposed by the DELL manufacturer (i.e. version A06), there is no option for legacy option. I am just throwing ideas. It may help you go towards the right direction for solving the bug. I will revert with news about the 3.15 kernel. In case you have any suggestions, please let me know. -- 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/1229591 Title: 8086:0116 [Dell Inspiron 14z (N411z)] Display brightness keys don't generate evdev events after saucy upgrade Status in “linux” package in Ubuntu: Incomplete Bug description: On raring (and precise) the display brightness keys (fn+f4 and fn+f5) on my Dell Inspiron 14z turned the brightness up and down. After a saucy upgrade this no longer happens (I don't see the popup brightness bubble either). The other, similar keys (volume adjustment, etc) still work fine. Changing the values in /sys/class/backlight/intel_backlight/brightness works (temporarily - it gets reset after the screen lock kicks in) I tried following the instructions in https://wiki.ubuntu.com/Hotkeys/Troubleshooting but this appears to be out of date (it references /usr/share/doc/udev/README.keymap.txt which does not exist) Ubuntu kernel version bisect revealed: First bad Ubuntu kernel: 3.11.0-0.2 last good Ubuntu kernel: 3.10.0-6.17 The results of a commit bisect are pending. --- ApportVersion: 2.12.4-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: chris 2646 F.... pulseaudio DistroRelease: Ubuntu 13.10 EcryptfsInUse: Yes InstallationDate: Installed on 2011-11-18 (675 days ago) InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: Dell Inc. Dell System Inspiron N411Z MarkForUpload: True Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-8-generic root=UUID=8bcbab07-7d4f-4c89-b6db-54aeed6ad1c4 ro quiet splash pcie_aspm=force i915.i915_enable_rc6=1 vt.handoff=7 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: Upgraded to saucy on 2013-09-21 (2 days ago) UserGroups: adm admin cdrom davfs2 dialout lpadmin plugdev sambashare dmi.bios.date: 09/10/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 0P01VP dmi.board.vendor: Dell Inc. dmi.board.version: FAB1 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA06:bd09/10/2012:svnDellInc.:pnDellSystemInspironN411Z:pvr:rvnDellInc.:rn0P01VP:rvrFAB1:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System Inspiron N411Z dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1229591/+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
