[Bug 1194] Touchscreen Jitter

bugzilla-daemon at bugzilla.openmoko.org bugzilla-daemon at bugzilla.openmoko.org
Tue Feb 12 01:14:24 CET 2008


------- Additional Comments From thebohemian at gmx.net  2008-02-12 01:14 -------
Created an attachment (id=528)
 --> (http://bugzilla.openmoko.org/cgi-bin/bugzilla/attachment.cgi?id=528&action=view)
sdl test app embedded in its OE recipe

SDL Test app and OE recipe to build it.

Run it and you will see how the painted block follows the touched area of the
screen. It will all be nice until you touch any of the borders.

With this test app I was able to observe the following (IMHO wrong) behavior:
If you touch the screen with the stylus at the upper border the cursor block
will move quickly towards the left or right end depending on whether you are on
the left or right half of it. If you now move the stylus to the other side the
cursor's movement will turn as well and will soon crash into the other end.

Analogus behavior can be observed with all the other borders.

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