It's a mere guess, but this issue might be caused by acpid/acpi-support. Most hardware hotkeys are now either handled through generic ACPI key handling in the kernel, and otherwise often by platform-specific ACPI modules. That's the clean way it's supposed to work like. The issue here is that acpid still ships with lots of scripts and hacks to detect and insert key presses into the input layer.
Try to remove acpid and acpi-support. Does this fix it? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921182 Title: brightness changes twice when using hotkeys To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921182/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
