Apple Keyboard

From ArchWiki
Revision as of 09:01, 28 August 2017 by Wget (talk | contribs) (→‎Treating Apple keyboards like regular keyboards: Add notes about the differences between un-apple-keyboard and patch to hid-apple)
Jump to navigation Jump to search

Some Apple keyboard models may have swapped keys or missing functionality. This article describes how to change the settings for the keyboard so that it behaves as expected.

Numlock is on

You may find that the numlock is on. The symptoms are that only the physical keys 7,8,9,u,i,o,j,k,l and surrounding keys work and output numbers. To fix this hit Fn+F6 twice.

Alternatively, set the keycodes manually using xmodmap to avoid use Numlock:

keycode  90 = KP_0 KP_0 KP_0 KP_0 KP_0 KP_0
keycode  87 = KP_1 KP_1 KP_1 KP_1 KP_1 KP_1
keycode  88 = KP_2 KP_2 KP_2 KP_2 KP_2 KP_2
keycode  89 = KP_3 KP_3 KP_3 KP_3 KP_3 KP_3
keycode  83 = KP_4 KP_4 KP_4 KP_4 KP_4 KP_4
keycode  84 = KP_5 KP_5 KP_5 KP_5 KP_5 KP_5
keycode  85 = KP_6 KP_6 KP_6 KP_6 KP_6 KP_6
keycode  79 = KP_7 KP_7 KP_7 KP_7 KP_7 KP_7
keycode  80 = KP_8 KP_8 KP_8 KP_8 KP_8 KP_8
keycode  81 = KP_9 KP_9 KP_9 KP_9 KP_9 KP_9

Repeating keys on a wireless keyboard

Unpair the keyboard and then re-pair it. The trick is to hold down the power button throughout the entire pairing process.

Function keys do not work

If your F<num> keys do not work, this is probably because the kernel driver for the keyboard has defaulted to using the media keys and requiring you to use the Fn key to get to the F<num> keys. To change the behavior temporarily, append 2 to /sys/module/hid_apple/parameters/fnmode. To make the change permanent, set the hid_apple fnmode option to 2.

< and > have changed place with § and ½

If the < and > are switched with the § and ½ keys, set the xkb option apple:badmap, for instance by running the following command in your graphical environment:

$ setxkbmap -option apple:badmap

Alternatively, set the keycodes manually using xmodmap:

keycode  49 = less greater less greater bar brokenbar
keycode  94 = section degree section degree notsign notsign

If you use a Canadian multilingual layout (where the "ù" and the "/" is switch) use this:

keycode  94 = slash backslash slash backslash bar brokenbar
keycode  49 = ugrave Ugrave ugrave Ugrave notsign notsign

< and > have changed place with ^ and ° (or @ and #, or ` and ~)

With German layout, circumflex/degree symbol and </> are exchanged. With French layout, @/# are exchanged. With the US layout, `/~ and </> are exchanged.

To change the behavior temporarily, append 0 to /sys/module/hid_apple/parameters/iso_layout. To make the change permanent, set the hid_apple iso_layout option to 0.

PrintScreen and SysRq

Apple Keyboards have an F13 key instead of a PrintScreen/SysRq key. This means that Alt+SysRq sequences do not work, and application actions associated with PrintScreen (such as taking screenshots in many games that work under Wine) do not work. To fix this, you can add setxkbmap -option "apple:alupckeys" to your .xinitrc. This will map PrintScreen/SysRq to F13, as well as Scroll lock to F14 and Pause to F15.

Alternatively, follow the Map scancodes to keycodes article to map the F13 scancode to the PrintScreen/SysRq keycode, where 458856 (0x070068) is the scancode of F13, and sysrq is the keycode of PrintScreen/SysRq.

Treating Apple keyboards like regular keyboards

Depending on the customisations you want to accomplish, there are two solutions available. You need to choose one of the other.

Use a patch to hid-apple

While the original hid-apple module doesn't have options to further customize the keyboard, like swapping Fn and left Ctrl keys or having Alt on the left side of Super, there is a patch adding this functionality to the module. To install the patch, install the hid-apple-patched-git-dkmsAUR package.

In addition to the patched kernel module, a configuration file is also provided by the package at /etc/modprobe.d/hid_apple_pclayout.conf, which enables PC-like layout by default:

  • Top-row keys are normally function keys, switchable to media keys by holding Fn key, as in #Function keys do not work.
  • Four keys at the lower left corner act as Ctrl, Fn, Super, Alt, in this order.
  • Super and Alt keys on the right are swapped.
  • If you have an Ejectcd key, it will act as Delete key.

Please refer to for exact meaning of each configuration options and tweaking the configuration file to suit your need.

Note: Don't forget to include the configuration file in initramfs otherwise it won't work automatically after boot. Refer to Mkinitcpio#BINARIES and FILES or Mkinitcpio#HOOKS (the hook you might need is called modconf) about how to do that.

After installation the change is not picked up by the kernel immediately. The simplest way is to just reboot your system and the new behavior should be in effect.

Use un-apple-keyboard

If you do not need all of these customizations and you do not want to compile a new module manually or using dkms, there is an AUR package un-apple-keyboardAUR which does not rely on a new kernel module, but rather just to mappings. It enables the following features:

  • The keyboard is considered as an ISO keyboard (e.g. < and > located at the right of the Left Shift key are working like expected).
  • The function keys are disabled by default. You need to press the Fn key in combination to trigger them. By default, the behavior are thus keys F1 to F12
  • The Alt and Cmd keys are swapped.
  • F13 is mapped to SYSRQ, F14 to Scroll Lock and F15 to Pause.

The first 3 aforementioned features are brought to you using the default linux kernel module hid-apple.

The last one is provided by providing a mapping to keyfuzz.

Change the Behavior Without Reboot

Warning: If the builtin keyboard and touch pad are the only input device, beware that doing so might leave your computer in an inoperable state unless hard reboot when the second command failes.

To reload the kernel module without reboot, run sudo rmmod hid_apple && sudo modprobe hid_apple.

See also