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Posted May 23, 2012 21:38 UTC (Wed) by krakensden (subscriber, #72039)
Parent article: A uTouch architecture introduction

So... if someone wanted to get some hardware to be able to play around with multitouch on X11, what would you recommend? Apple's standalone trackpad? Those laptop/tablet hybrids Lenovo sells?

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Posted May 24, 2012 3:35 UTC (Thu) by whot (subscriber, #50317) [Link]

The x220t supports 2 fingers only, as do other wacom touch-enabled devices (bamboo, Intuos 5) and many built-in serial tablets in other tablet computers. The Apple trackpad supports more touchpoints (can't remember, 10 maybe?). Note that behaviours aren't the same, the x220t and other built-in devices are direct-touch, touchpads are by their very nature indirect touch devices. Be aware that plenty of tech specs say "multitouch" when they only support dual-touch.


Posted Jun 3, 2012 7:31 UTC (Sun) by boudewijn (subscriber, #14185) [Link]

Wacom touch tablets support 16 tracking points.


Posted Jun 3, 2012 13:29 UTC (Sun) by Cyberax (✭ supporter ✭, #52523) [Link]

16 points? Are they going for the "two octopuses" mode? :)


Posted Jun 4, 2012 1:37 UTC (Mon) by whot (subscriber, #50317) [Link]

The newest ones do. Anything not last generation is 2 fingers only.


Posted May 24, 2012 5:13 UTC (Thu) by tajyrink (subscriber, #2750) [Link]

My Asus Zenbook's Elantech touchpad for example supports multi-touch properly - two finger scrolling, three finger window moving and maximize/restore via pinch, and four fingers brings up Unity's Dash.

Note though that there is another variant used in some Zenbooks from Sentelic, and multi-touch support for that is only in some git repositories, whereas Elantech supports lives for example in the Ubuntu 12.04 LTS kernel.


Posted May 24, 2012 12:07 UTC (Thu) by bats999 (guest, #70285) [Link]

How 'bout this?

Curiously, "Linux version available in March 2012". I have no idea what that means exactly.


Posted May 24, 2012 14:35 UTC (Thu) by cnd (guest, #50542) [Link]

The Apple Magic Trackpads are great because you can add it to any existing computer setup. It is my recommendation for a multitouch trackpad.

Multitouch touchscreens are a different story. Unfortunately, I wouldn't "recommend" any touchscreens you can find on the market today on traditional laptops or monitors. I have heard of monitors with a newer eGalax touchscreen that supports five touches, but I haven't played with one to be sure. The best touchscreens are actually found on Android tablets. They tend to have the Atmel maXTouch chip, which recognizes and tracks many simultaneous touches. However, you have to figure out how to get a Linux desktop running on them first, and they aren't really designed for that.

I personally develop with a laptop with an N-Trig touchscreen. It does a passable job for development purposes, but it often drops touches or emits touches that don't exist.

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