Chris Stratford, thank you for your quick response. Could you please clear out the non-default kernel boot parameters, and test the following individually and advise if it changes anything: acpi_backlight=vendor video.use_bios_initial_backlight=0
when only testing a mainline kernel v3.13.x+ (for example http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc6-trusty/ ): video.use_native_backlight=1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1229591/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
