11/06/2009
Handling right clicks on a macbook running Linux
I’ve finally settled down to a solution that I am happy with. I used to have the following options inside my Xorg.conf:
Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
[...snip...]
Option "TapButton1" "1"
Option "TapButton2" "3"
Option "TapButton3" "2"
Option "VertTwoFingerScroll" "1"
Option "HorizTwoFingerScroll" "1"
[...snip...]
This works like this:
i) a single tap is a left click
ii) a two-finger tap is a right click
iii) a three-finger tap is a middle click
and you could scroll horizontally and vertically using two fingers on the touchpad, like Mac OS X.
The problem with this setup is that I used to have a lot of accidental double tappings while scrolling with two fingers horizontally or vertically. This of course produced unwanted right clicks.
I wanted a solution that I could get right click in somehow like Mac OS X does it, using ctrl+tap/ctrl+click. I found a solution that emulated ctrl+click as a right click but then many applications started misbehaving. Firefox for example uses ctrl+click on Linux to open a link on a new tab, when I used ctrl+click as a right click, Firefox stopped opening the links. So I went to plan B.
CMD key(apple key)-click as a right click.
To achieve that:
a) install xvkbd.
Debian: apt-get install xvkbd
Gentoo: emerge xvkbd
b) install xbindkeys.
Debian: apt-get install xbindkeys
Gentoo: emerge xbindkeys
c) create the default .xbindkeysrc file: xbindkeys –defaults > ~/.xbindkeysrc
d) edit it and put the following inside: "xvkbd -text '\m3'"
mod4 + b:1 (mouse)
e) edit xorg.conf and set this: Option "TapButton2" "0"
This effectively disables double tapping as a right click.
f) restart X
g) open a terminal and start xbindkeys from it: $ xbindkeys -n -v
Now press CMD key and tap the touchpad or click the touchpad button. You should be greeted with a fresh right click!
If all went well put xbindkeys in your DE’s autostart.
The following works flawlessly on XFCE/LXDE. CMD-click or CMD-tap opens XFCE’s menu or LXDE’s desktop menu.
On fluxbox though there is still a problem. It’s very common for fluxbox key config to look something like the following:
OnDesktop Mouse1 :hideMenus
OnDesktop Mouse2 :workspaceMenu
OnDesktop Mouse3 :rootMenu
OnDesktop Mouse4 :nextWorkspace
OnDesktop Mouse5 :prevWorkspace
So to open the RootMenu, which is the basic menu with the applications shortcuts for fluxbox, one needs to actually right click on the Desktop. That worked with TabButton2=3 but it does not work right now. To get around that problem I binded the key left to (1/!) which is normally the (±/§) key on Macs to the Menu key using xmodmap.
$ cat .xmodmap
keycode 94 = Menu
I never used that key anyway…
I’ve now got my precious right click back without accidental miss-clicks. yihaa!
References: FreeBSD on an Apple MacBook
Filed by kargig at 22:29 under Gentoo,Linux
Tags: accidental, click, ctrl-click, ctrl+tap, debian, fluxbox, Gentoo, Linux, lxde, macbook, right-click, synaptic, toucpad, xfce
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