[hafqa] [hafqa] [Bug 2844] New: touchpad x digitiser givving erratic readings

[From: bugzilla-daemon at lists.maemo.org]

https://bugs.maemo.org/show_bug.cgi?id=2844

           Summary: touchpad x digitiser givving erratic readings
           Product: System software
           Version: 4.0
          Platform: N800
        OS/Version: IT OS
            Status: UNCONFIRMED
          Severity: major
          Priority: Medium
         Component: general
        AssignedTo: carlos at maemo.org
        ReportedBy: jheather at zoo.co.uk
         QAContact: hafqa at maemo.org


SOFTWARE VERSION:
2.2007.50-2

STEPS TO REPRODUCE THE PROBLEM:
Use maemopad+ sketches (or - not tried - sketch).  Draw (very light) diagonal
lines. Lots of them.

EXPECTED OUTCOME:
Tablet should always report the correct x and y coordinates and give perfect
lines following the pen. 

ACTUAL OUTCOME:

Occasionally there is a glitch. Always along the horizontal axis, and always to
the left of the true position. Sometimes the glitches are extremely violent -
all the way across the screen.

REPRODUCIBILITY:
(always/sometimes/once)
Far too frequent.

EXTRA SOFTWARE INSTALLED:
 Irrelevant

OTHER COMMENTS:
These glitches occur randomly and cause, for example, occasional activations of
the left-hand toolbar
items (even happening when scrolling things with a right-hand scrollbar!) 
Probably, though hard to prove, this contributes to the noticeable decrease in
reliability of the virtual
keyboard.
Suggests, to me, that the debounce for the x axis digitiser has inadvertantly
been set too low or is not being used.

This has occured ONLY since installing the 2.2007.50-2 version. Neither
ITOS2007 nor the pre-release ITOS2008 version had this problem.


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