I am trying to get the Fn+F5 and Fn+F6 buttons to work on my ASUS UX305F
laptop running Ubuntu 14.04
. I have tried adding all of the following to /etc/default/grub
without success:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi="
I have even tried mixing and matching some of them. Each time I ran sudo update-grub
and restarted my computer only to be disappointed yet again. I also found that running acpi_listen
produced no output when I pressed the keys leading me to believe that they are not captured. How can I fix this issue?
EDIT:
acpi_listen
pressing F5:
^[[15~
acpi_listen
pressing Fn+F5:
No output
xev
pressing F5:
KeyPress event, serial 37, synthetic NO, window 0x5000001,
root 0x9b, subw 0x0, time 41144271, (1,436), root:(783,488),
state 0x0, keycode 71 (keysym 0xffc2, F5), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 37, synthetic NO, window 0x5000001,
root 0x9b, subw 0x0, time 41144399, (1,436), root:(783,488),
state 0x0, keycode 71 (keysym 0xffc2, F5), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
xev
pressing Fn+F5:
No output
EDIT 2:
Bug filed here for reference: https://bugs.launchpad.net/bugs/1458351
Fn+5
key? Do you mean you are pressingFn
key (which is alongside theAlt
orCtrl
key) and the5
numeric key? It will not send any special signal to your system. It will only send5
to your system.Fn
keys are hardware encoded. They don't work this way.