12.04gnomemousexorg
On recently upgrading to 12.04, I find that the middle click with my logictec marble mouse doesn't work any more (formally achieved by clicking both buttons). Anoying since I can't do a middle-click paste.
Can anyone think of an easy solution? Or should I file a bug?
(theres's already a launchpad question on this, and here's the oldish ubuntu page for configuring a marble mouse.
Clicking the scroll wheel does not work on a two button mouse =)
The feature you are wanting is called "middle button emulation" and is not enabled out of the box as of Ubuntu 11.04 or so (not sure).
IMO easiest method is to install gpointing-device-settings
sudo apt-get install gpointing-device-settings
You then 'use wheel emulation'
There is a longer discussion on this bug report if you wish to manually edit xorg.conf
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/710762
Install the package gpointing-device-settings
Description-en: configuration tool for pointing devices
GUI tool for setting pointing devices. Currently it can configure mouse type
device (mouse, trackpoint etc.) and touchpads.
.
For mouse you can configure middle button emulation, wheel emulation and
scrolling.
.
It can enable and disable touchpad, or scrolling on it as well as additional
parameters like palm detection, locked drags, tapping and scrolling.
.
It is a successor of GSynaptics.
Alternatively, try this:
gsettings set org.gnome.settings-daemon.peripherals.mouse middle-button-enabled true
The alternative solution might require the installation of gnome-settings-daemon package.
Using synclient command you can view your synaptics touchpad options.
Run synclient and see what variables you have available.
You can set/change the synclient options using this command: syclient var=1 (where var is the variable you wish to change and 1 the value)
Read the manual page about each variable: http://manpages.ubuntu.com/synaptics
Instead of figuring out how to press both buttons of the touchpad, keep/press two fingers on the touchpad and click on the left click button of the touchpad with a third finger. This emulates a middle button by default.
a) Setting the TapButton variable works for the two fingered tap
b) If you still want to click both buttons and produce a middle button emulation, execute:
synclient EmulateMidButtonTime=100
EmulateMidButtonTime allows you to change the time required to produce a middle button (allowed time period to click both buttons). 100 means 100 milliseconds (ms).
You may set it to even higher values, such as synclient EmulateMidButtonTime=500 (500ms).
Best Answer
I found the answer here and here. You need to run the following command:
You only need to do this once - Gnome remebers the setting for your next logon - though you need to do it for each user. If someone knows a way around this, feel free to edit this answer (:
It seems Gnome sets this to 'false' by default, and does so after xorg does it's settings (so it overrides xorg settings in
xorg.confor...-evdev.confetc..)The setting can also be changed with the
dconf-editorin thedconf-toolspackage (thanks Walt). Go to org::gnome::settings-daemon::peripherals::mouse and tick 'middle-button-enabled'.