Created attachment 101251 [details] dmesg with 3.9.2 kernel Almost no Fn keys work (anything unhandled by ACPI, I believe). For example, I cannot change the volume or mute, and I cannot change the keyboard backlight brightness. I bisected this behaviour to this commit: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cae06e603339f99334bc6b276e2ac619cf0d476 This message in dmesg may be related: [ 11.583859] asus-nb-wmi: probe of asus-nb-wmi failed with error -5 This message did not appear with my previous kernel (3.8) and everything worked fine.
Hi: Thanks for file the bug and bisect. From the result of your bisect, this is platform driver bug rather than acpi bug. So reassign it to platform catagory
Thanks for reassigning, I couldn't find the right category.
If I boot without the acpi_osi kernel flag, the keys (except brightness, fixed in bug #52951) the Fn keys work fine.