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SubjectUSB optical mouse on laptop causes bk12 boot to hang

on to the next issue. the setup:
dell inspiron 8100 laptop
RH 9
2.5.66-bk12

for ergonomic reasons, rather than use the laptop keyboard and
touchpad, i have (under the previous RH 8 and 2.4.20) been using
an external PS/2 keyboard and logitech USB optical mouse. this
setup has been working fine -- when both external input devices
are connected, i can use either keyboard, and just the optical
USB mouse.

booting under 2.5.66-bk12, if just the keyboard is connected,
no problem. the boot works, both keyboards are active, and the
touchpad works.

however, if i connect *only* the optical mouse, the boot gets
to "Freeing unused kernel memory", hangs for about a minute,
then powers down the box. not good. (same thing happens if
both external keyboard and mouse are connected, so i've isolated
it to just the optical mouse).

thoughts?

rday

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