XO-1/Touchpad/Issues

From OLPC
< XO-1
Revision as of 07:40, 15 November 2008 by Wad (talk | contribs) (Added back a summary of previous issues.)
Jump to navigation Jump to search
This page is part of the XO Support FAQ.     Support Index | Print This Page
<imagemap>

Image:Support-banner-square.png|173px|community support pages rect 0 0 135 204 [1] rect 135 0 345 204 Support FAQ rect 0 205 135 408 [2]

  1. Comment : there's some whitespace here:

rect 135 205 345 408 Other support

  1. maybe desc none is better. testing.

desc none

</imagemap>

Occasionally, a laptop's touchpad will behave abnormally. This behavior includes the pointer jumping to a corner of the screen, or moving wildly. On current software (release 8.2 or better, standard on late 2008 G1G1 machines), the touchpad will be automatically recalibrated when this happens. You should hold your fingers away from the touchpad when this happens.

A recalibration of the touchpad can be manually invoked using the "four-finger salute" (Escape + Frame + Right Arrow + Fn, with Fn pressed last). Work-arounds in extreme cases include using a common USB mouse with the laptop.

If using older software

Using older (pre-2008 G1G1) software/hardware, there were three known touchpad issues:

The pointer jumps to the bottom-right corner of the screen

This can happen right after you touch the touchpad. Rebooting often helps (see bug 2804).

The four-finger salute (Escape + Frame + Right Arrow + Fn, with Fn pressed last) usually fixes this.

The pointer moves around by itself

Instead of reliably following your finger, the pointer can move around on its own, sometimes when a hand is close to it. The four-finger salute (Escape + Frame + Right Arrow + Fn, with Fn pressed last) usually fixes this. Automatic recalibration on reboot may also fix the problem.

Mouse moves mostly vertically

If the touchpad works fine vertically but doesn't function horizontally (ticket 5575), it is likely due to damaged touchpad wiring. This was corrected and is very rarely seen in recently produced laptops.