Messages in this thread | | | Date | Fri, 19 Apr 2002 09:38:48 +0900 | From | "Adrian V. Bono" <> | Subject | Re: something weird on Linux 2.4.17 on an IBM Thinkpad T20 |
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Andreas Dilger wrote: > On Apr 19, 2002 09:17 +0900, Adrian V. Bono wrote: > >>While working in X on kernel 2.4.17 on an IBM Thinkpad T20, sometimes >>the mouse pointer would just gravitate all by itself, without my moving >>the mouse or pointing stick, upwards. The first time that happened, i >>was coding in an xterm when suddenly, window focus shifted to another >>window and i noticed the mouse pointer was moving upwards by itself. >>Anyone else notice this? > > > This is common to all thinkpads (or other laptops which have trackpoint > devices) and also happens under Windows. The cause is related to > automatic compensation for the centering of the trackpoint. Early > trackpoint devices didn't have automatic centering and I remember > replacing more than a few keyboards because the mouse would start > drifting by itself. Later trackpoints have automatic centering, but > if you hold onto the trackpoint for a long time (causing the "center" > to be offset by some amount) and then let go, it will settle back to > the "old center" and the cursor will drift for a few seconds until > the automatic centering kicks in again. > > Moral of the story - don't touch the trackpoint when you aren't doing > anything with it. >
Yes, i've replied two replies similar to yours. But it happens to my desktop, too.
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