Is Multitouch Fix Possible?

[Guest ShakeyB]

After hearing a rumour that Froyo would fix the multitouch swapping issue a while ago (which it doesn't) I noticed that someone had come up with a fix for the Acer Liquid here.. Anyone know if this is possible for the Blade? Would make gaming far less frustrating!

[Guest Matty-p]

After hearing a rumour that Froyo would fix the multitouch swapping issue a while ago (which it doesn't) I noticed that someone had come up with a fix for the Acer Liquid here.. Anyone know if this is possible for the Blade? Would make gaming far less frustrating!

'multitouch swapping issue' expand ? what are the bad things that happen ? i.e what do you thin is wrong

Edited December 9, 2010 by Matty-p

[Guest Digitalize]

what problem?

[Guest ShakeyB]

http://wiki.modaco.com/index.php/ZTE_Blade...titouch_problem

First noticed this problem with the Nexus One. Thought it was pretty well documented? If you play something like Heavy Gunner 3D you will understand why it's a problem!!

[Guest Treacles]

I think its that, when you go past a certain point with both fingers on the screen, coordinates get flipped for both fingers, so the touch registers in an opposite side of the screen (Either over X or Y axis)

[Guest AceOfSpades]

Is this fixed on the newer tft blades? apparantly they have better touch screens, can anyone test?

Also is the blade only able to register 2 inputs or can it do more?

[Guest ShakeyB]

Only supports 2 points.

Download this to test!

[Guest Rem1x]

I'd love to see some work put in to this. It's one of those niggles that really annoys me.

[Guest BigBearMDC]

Basically this happens becuase we only have support for DualTouch, not MultiTouch. I don't really know what causes this, but I know what happens: if your fingers pass the same X or Y coordinate on the screen, the touchscreen controller gets crazy and might start swapping the coordinates of your fingers. Further, if you put your fingers close enough together on either X or Y axis the controller isn't able to differentiate the coordinates. If the Liquid has a DualTouch (and not MultiTouch!) controller we might be able to port the fix to the Blade. But this will require kernel modding so we'll only be able to patch the .29 kernel (meaning the fix will be for 2.1 only).

Best regards,

BB

[Guest oh!dougal]

Basically this happens becuase we only have support for DualTouch, not MultiTouch. I don't really know what causes this, but I know what happens: if your fingers pass the same X or Y coordinate on the screen, the touchscreen controller gets crazy and might start swapping the coordinates of your fingers. Further, if you put your fingers close enough together on either X or Y axis the controller isn't able to differentiate the coordinates. ... If the Liquid has a DualTouch (and not MultiTouch!) controller we might be able to port the fix to the Blade. But this will require kernel modding...

Check out Finnish Fillyjonk. (Damn good rom, btw.)

It has custom pressure-proportional touch and a 'multi'touch demonstration app, which incidentally very clearly shows up this 'swapover' glitch (as I commented last night before seeing this thread).

KK's touch driver would seem a great candidate for augmenting with any existing swap-fix logic ...

Edited December 10, 2010 by oh!dougal

[Guest Rusty!]

Is this fixed on the newer tft blades? apparantly they have better touch screens, can anyone test?

Also is the blade only able to register 2 inputs or can it do more?

No, TFT ones are the same.

[Guest rjm2k]

Basically this happens becuase we only have support for DualTouch, not MultiTouch. I don't really know what causes this, but I know what happens:

That's because the Synaptics controller used in at least some of our sfs is a dualtouch controller, not multitouch.

[Guest gameSTICKER]

Basically this happens becuase we only have support for DualTouch, not MultiTouch. I don't really know what causes this, but I know what happens: if your fingers pass the same X or Y coordinate on the screen, the touchscreen controller gets crazy and might start swapping the coordinates of your fingers. Further, if you put your fingers close enough together on either X or Y axis the controller isn't able to differentiate the coordinates. If the Liquid has a DualTouch (and not MultiTouch!) controller we might be able to port the fix to the Blade. But this will require kernel modding so we'll only be able to patch the .29 kernel (meaning the fix will be for 2.1 only).

Best regards,

BB

Synaptics equals closed source, but still, can this be fixed if we fix the drivers in Kernel?

[Guest BigBearMDC]

Synaptics equals closed source, but still, can this be fixed if we fix the drivers in Kernel?

Maybe