touchpad does not recognize multitouch

[adamouser]

hi guys

i have karmic installed on my dell adamo. according to synclient -m 500 the touchpad does not recognize multiple fingers at the same time. ive already tried to activate two finger scroll with system > preferences > mouse. it does not work.

i know the hardware is able to recognize multitouch because its working on windows 7.

what can i do? upgrade synaptics driver?


thanks for your help.

[SimonErich]

I have the same problem with my Toshiba A500.
My Touchpad has multitouch support (I can zoom by spreading my fingers, rotate, ... with this touchpad) but synclient recognizes only one finger.

I would be thankful for your help guys.

thank you.

[SeanBlader]

That would be really cool if we could get this functionality into the touchpad driver, I didn't even know my hardware supported it.

[wankel786]

Same problem here on an xps 1640. Windows 7 has multitouch but linux does not. Anyone figure this out yet?

[adamouser]

there is a project going on for enabling multitouch etc on macbooks using ubuntu. I am currently following this thread:

http://ubuntuforums.org/showthread.php?t=1334696

[adamouser]

IT WORKS

ive received the following hint via the dell-adamo mailing list on launchpad (https://launchpad.net/~dell-adamo):


***********

Hi all,


New to the list. Just got my Adamo last week.


Just in case anyone is still wondering about this, two finger scrolling is indeed possible on the Adamo. I'm scrolling right now . I have Lucid installed, but it should work in Karmic as well.


Here's what I had to do:


Edit the following file;
sudo vi /usr/lib/X11/xorg.conf.d/10-synaptics.conf


Add the following three "option" strings in the first block to look like this:


Section "InputClass"
Identifier "touchpad catchall"
MatchIsTouchpad "on"
MatchDevicePath "/dev/input/event*"
Driver "synaptics"
Option "VertTwoFingerScroll" "true"
Option "EmulateTwoFingerMinZ" "10"
Option "EmulateTwoFingerMinW" "8"
EndSection




Save the file. This in theory would make two finger scrolling possible, however there is a bug in that the VertTwoFingerScroll option is not honored at startup (pressure and width are honored), so you have to use a work-around.


Create a file in your home directory:
vi ~/.twofingerscroll


Add the following:
#!/bin/bash
sleep 10 &&
exec synclient VertTwoFingerScroll=1 &
exit



Make it executable:
chmod +x ~/.twofingerscroll


Add it to your startup items in System -> Preferences -> Startup Applications


Reboot.


Enjoy two finger goodness


Hope this helps.


Matthew Percival


PS - You can also add horizontal scrolling if you'd like. Add the option line to xorg and to the workaround using [HorizTwoFingerScroll].

[Ole_M]

however there is a bug in that the VertTwoFingerScroll option is not honored at startup

Hm, for me it works just fine. I use openbox as a window manager. Maybe it has something to do with gnome? By the way, horizontal scrolling also flips through desktops 1-4. Nice! Additionally, a two-finger-tap emulates the right mouse button.

Is there the possibility to add more multitouch functionality, e.g. pinching or recognizing 3 finger tabs/scrolls?

Ole