On 12/24/2014 03:53 PM, Gabriele Mazzotta wrote:
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Also, if you can get the firmware id from your touchpad that would also
be useful.

$ sudo ./rmihidtool -f /dev/hidraw0

firmware id: 1522295

Thanks, I will see if I can get any additional information on this.

Andrew

Hi,

I think I found the source of the problem.

$ ./rmihidtool /dev/hidraw1 -r 0x50 1
0x01  #PalmDetect Interrupt Enable, right?

Yes, 0x50 does appear to be the address of the palm detect interrupt 
enable register.

$ ./rmihidtool /dev/hidraw1 -w 0x50 0  #Disable PalmDetect Interrupt

It makes more sense now that widths greater than 12 trigger the bug.

That is weird behavior and I haven't seen anything like that before. I 
will file a bug to see if firmware has any idea why this is happening.

Gabriele

Andrew