*** This bug is a duplicate of bug 1246683 ***
https://bugs.launchpad.net/bugs/1246683
** This bug has been marked a duplicate of bug 1246683
Middle button does not work for scrolling
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-input-synaptics in Ubuntu.
https://bugs.launchpad.net/bugs/1287148
Title:
Thinkpad clickpad + Trackpoint cannot emulate middle button scrolling
Status in “xserver-xorg-input-synaptics” package in Ubuntu:
New
Bug description:
I'm testing with a freshly-updated Trusty Tahir daily (2014/March/2)
on a Lenovo X1 Carbon (2014 refresh) laptop.
IBM/Lenovo Thinkpad laptops have a "Trackpoint": a red "joystick
mouse" in the middle of the keyboard. Historically this is
accompanied by three mouse buttons directly below the space bar. One
beloved feature: if you hold down the middle mouse button, you can
scroll a window up/down/left/right with the Trackpoint. This feature
is implemented in X with the "Evdev Wheel Emulation" properties of the
xinput driver for the Trackpoint device.
The latest Thinkpad laptops (X240, X1 Carbon 2014 refresh) remove the
hard buttons, and have a "clickpad" instead of a trackpad. One must
use the "soft" mouse buttons provided by the clickpad. But now we
have a problem. The clickpad soft buttons are implemented in the
Synaptic driver. And the Synaptic driver doesn't support middle-
button-scrolling.
If I run
% xinput --list-props "TPPS/2 IBM TrackPoint"
I see property entries starting with "Evdev Wheel Emulation". Setting them
on this device doesn't enable middle-button-scrolling.
And if I run
% xinput --list-props "SynPS/2 Synaptics TouchPad"
I don't see those property entries at all. I tried setting them manually
with "xinput --set-int-prop" but they were ignored.
One of the maintainers of Arch Linux got middle-button-scrolling with
a Trackpoint + clickpad to work! But he had to create a new driver.
It looks like he started with the evdev driver, and merged in support
for the Synaptics and Trackpoint devices. The resulting driver is
published here:
https://bitbucket.org/esrevinu/xf86-input-evdev-trackpoint
It would be fantastic if Ubuntu 14.04 also supported this feature.
Thanks!
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1287148/+subscriptions
--
Mailing list: https://launchpad.net/~desktop-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
