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How does the coordinate reported match up with where your finger is? Is it actually underneath?
I've made a 3x3 launcher, and was misfiring the launcher on the middle column of apps, mainly because as my range on x was 0-191, the column was a few pixels (around 5?) more to the left, and another 5 or so pixels short, making it that the last 10 or so pixels was already for the next column.
Something like the attached image, where green was the drawn and expected grid, red was the touch feedback. Certainly not as precise but definitely noticeable, and when I compensated for it, it started behaving much better.
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diego
How does the coordinate reported match up with where your finger is? Is it actually underneath?
My concern with clipping the coordinates is that the touchscreen is probably slightly bigger than the LCD - so you'd expect you might be able to touch around the edges.
If we clip this down in the firmware then it's kind of an own goal. It means that there's now less useful touch area - less scrolling, less ability to press around the edge of the screen, and less accurate swipe recognition (when that actually starts getting used).