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Posts: 147 | Thanked: 228 times | Joined on Feb 2010 @ Toronto, Canada
#3
Originally Posted by a dick View Post
fbreader? What is that app for? Is it heavy on the CPU?
FBreader is an ebook reader, and besides loading a book, it's probably the least CPU intensive app out there. All it needs to do is scroll to the next page in a text file when you tap the screen or press a key.

I conclude that its because of undervolting the CPU.
In my experience and experimentation, Running multiple apps at the same time causes more CPU load.
Well an idiot knows that too, but, if undervolted, CPU is starved, so working on full load reducees the performance of the frequency causing, in your case, a non responsive touchscreen.
Try cranking up the voltage, see if it works.
The problem occurs only within fbreader, regardless of how many apps I am running at once. I can multitask between fbreader, opera, media box and only fbreader is affected. And as I said, sketch shows the resistive layer to work in all areas.

What I think may be happening is the resistive layer is getting slightly less responsive in that particular area. There is one setting in fbreader called Movement Tolerance, with 2 options: finger or stylus. If I select stylus but use my finger, the problem is replicated all over the screen.

But I am still hoping there is a bug within fbreader, and that my N900 is fine.