Thanks. Your attached udev.txt confirms that the keymap matching worked: P: /devices/platform/i8042/serio0/input/input4/event4 [...] E: KEYBOARD_KEY_85=brightnessdown E: KEYBOARD_KEY_86=brightnessup [...]
and your evdev output on event10 confirms that the device *claims* to support KEY_BRIGHTNESS{UP,DOWN}. If you don't get any events on either device, this must be fixed in the kernel keyboard driver, reassigning to linux. Any chance you could try to install/boot the raring kernel on current saucy, to check if that brings back the keys? ** Package changed: systemd (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Incomplete => New ** Summary changed: - [keymap] display brightness keys stop working after saucy upgrade + display brightness keys don't generate evdev events after saucy upgrade -- 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: display brightness keys don't generate evdev events after saucy upgrade Status in “linux” package in Ubuntu: New 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kicks in) I tried following the instructions in https://wiki.ubuntu.com/Hotkeys/Troubleshooting but this appears to be out of date (it references /usr/share/doc/udev/README.keymap.txt which does not exist) $ lsb_release -rd Description: Ubuntu Saucy Salamander (development branch) Release: 13.10 $ apt-cache policy udev udev: Installed: 204-0ubuntu12 Candidate: 204-0ubuntu12 Version table: *** 204-0ubuntu12 0 500 http://gb.archive.ubuntu.com/ubuntu/ saucy/main amd64 Packages 100 /var/lib/dpkg/status 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