Hi Keith,
So I've got this new laptop manufactured by Compaq. It has a touchpad
manufactured by Synaptics, which looks to Linux like a PS/2 mouse.
Under Windows, however, there's a specific driver with loads of cool
functionality (like measuring the diameter of your thumb in real time).
Running the KDrive server on this machine causes the touchpad to go
all funny; the pointer is then stuck at the bottom of the screen (but
still moves laterally). Leaving KDrive doesn't fix it, a cold boot is
necessary.
A wee bit of debugging shows that the Intellimouse probe is what
breaks the touchpad; removing the first line from ps2Init in mouse.c
(the one that says ``MouseWriteBytes(...intelli_init...)'') fixes the
problem.
So it looks like the Synaptics touchpad reacts to the Intellimouse
initialisation sequence by switching to some weird protocol. Do you
have any suggestions for fixing that, other than disabling
Intellimouse support?
Juliusz
P.S. CC'd to xpert in case somebody has an idea.
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