Nexus One's touchscreen has hardware limitations that affect its performance?

This article contains unofficial information.
Nexus One's touchscreen has hardware limitations that affect its performance?
Recently there has been some question marks about the performance of the Nexus One's touchscreen and the poor performance of multitouch on the device. A controversial app designed to track your finger tips on the touchscreen shows problems at certain points, a problem not shared by the Motorola DROID (a different app that measures a device's touchscreen using different techniques shows the DROID and N-One with basically the same performance with multitouch). The main reason for this is that the Nexus One and the DROID use different touch sensors. The latter device has the ClearPad2000 under the hood for dealing with two finger interaction and gestures. This is a sensor that was first used back in 2007 by HTC and Android and Me believes that the sensor has been used in all of the Taiwanese based manufacturer's Android phones since. The ClearPad2000 works without a problem when supporting pinch-to-zoom in the browser, but when it comes to complex two finger movements used in games, the sensor seems to lose its way.

Diane Hackborn is an Android framework engineer. She says the problem is not the Android platform. She does mention that the DROID has a special code and it is this special code that Android and Me says is the reason why the latter out performs the N-One. Cyanogen, a forum member on the XDA-developers board (real name is Steve Kondik) found that "Interestingly there is a hack in the framework (which is enabled on the DROID, but not on the N1) that can be enabled by setting config_filter TouchEvents. With it disabled (the default) I get the axis-flipping problem. Enabling it fixes this, but there are still issues with the points "sticking" when they cross." So it would appear that the Nexus One as well as most HTC Android models are suffering from a software related problem that might be able to get fixed via a firmware update. Developers know now that they miust design games with the limitations in mind and to make sure that the two fingers don't crossover. In the future, we might see HTC devices-and Motorola as well-use the ClearPad 3000 as seen on the video below. This sensor supports true multitouch and supports up to 10 touches. As long as you're not using your fingers AND toes, that sounds just right.

HTC Nexus One Specifications | Review
Motorola DROID Specifications | Review

source: xda-developersforum via AndroidandMe

Synaptics ClearPad 3000 Series from Synaptics, Inc. on Vimeo.



7. Jon_33

Posts: 10; Member since: Feb 17, 2010

Sucks to Nexus One, I was gonna buy this. Thanks to that guy. Now, I'm gonna buy HTC HD2. Nexus One loses points and HD2 and Desire gain points.

6. crappypunk

Posts: 131; Member since: Aug 15, 2009

from the video it still looks like synaptics gives shaky touch accuracy.. I can't figure out what apple does to make their touch screens have such a stable contact point.. but it seems almost flawless

5. numberonenygfan

Posts: 211; Member since: Oct 19, 2009

again, this is rediculous.. why is multitouch suuuch an issue. I do not have it with the droid, and honestley it has not impacted my experience with it... dolphin browser you say ? Dolphin browser sucks... and really.. if you want multi touch, and it doest work on a phone like the n1, googles flagship device, that really stinks.....i am a happy droid owner... i just cant go near electro magnetic interference or my phone calls everyone on the planet. point im tryin to make is no phone is perfect... and to me multitouch really isnt a big deal if the rest of the phone works right.. to each his own. Droid Does... so far..

4. PhoneWar

Posts: 25; Member since: Mar 11, 2010

Seems that Google was in to much of a hurry to get this phone out and possibly rushed HTC in the process. Thats a shame. I hope the Big 4 carriers dont do the same so that they can have the next best phone before the other.

3. deschats

Posts: 193; Member since: Jun 09, 2009

Directions to a perfect DROID: Root, Bugless Beast 2.1 v0.5, Overclock 1.1 ghz (STABLE

2. behold--me

Posts: 679; Member since: Jun 22, 2009

The nexus one seems to be more problematic than an actual functioning phone. That's just sad. Second gen better have fixes to these problems to the already failing n-1

1. testman22

Posts: 339; Member since: Nov 03, 2009

this is the straw that broke the camels back. There is no way i'm buying a nexus one. I'm happy with my decision to get a droid- and hopefully htc will get out a second generation nexus soon that corrects all these hardware issues

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