[ltp] trackpoint not working properly

[Matt Graham]

On Tuesday 30 November 2004 13:54, after a long battle with technology, 
Meike Reichle wrote:
> [Thinkpad] X20 Debian (testing)
> Section "InputDevice"
>  Identifier  "Mouse0"
>  Driver      "mouse"
>  Option     "CorePointer"
>  Option     "Protocol" "ImPS/2"
> the trackpoint, it seems to be recognized but the mouse pointer keeps 
> jumping into the bottom left corner 

That may not be correct.  The Trackpoints on the other Thinkpads I've 
owned (380D, 600X, A22p) have all used PS/2, not IMPS/2.  If the device 
uses PS/2 and you've specified IMPS/2, that'd cause the symptoms you 
describe.

> The USB mouse works nicely, but when I plug it in after having
> started the X Server, I need to restart X, which is okay but a bit
> annoying.

Hmm.  This is, IIRC, a problem with X's architecture.  X only scans for 
devices on startup; if a device is not present at startup, it won't be 
used.  I don't know whether the Xorg people are trying to fix this; 
it'd probably be a real pain to fix thanks to the large amount of code 
in X and the cruft that's accumulated over the years.  HTH anyway,

-- 
   I think I'll have to put on 500 pounds of subwoofers, amps, and other
   delicious herbs.  --MegaHAL, trained on ASR
There is no Darkness in Eternity/But only Light too dim for us to see