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Re: Mouse pointer locking up on A4tech scrollball mouse



On Thu, 2008-01-24 at 13:57 -0700, Karl Larsen wrote:
> Nigel Henry wrote:
> > I use these A4tech mice on both machines, but on the machine that I still use 
> > FC2 on, the mouse pointer locks up from time to time. Ctrl Alt Backspace 
> > won't release the pointer, nor will a reboot, only a complete shutdown. It 
> > appears that it's a problem with the mouse, and the power has to be 
> > completely removed from it, as in a complete shutdown.
> >
> > This is on an old Gateway 500 machine, and a complete shutdown means just 
> > that. No power of any sort on the mobo.
> >
> > Looking at the mouse problem, is there any way to completely disable the ps2 
> > port for the mouse, including removing power from the mouse, then re-enable 
> > the ps2 mouse port? I can still use the keyboard when this problem occurs.
> >
> > No doubt if I physically unplugged the mouse it would work, but at the same 
> > time I risk damaging the mobo due to power spikes, and plugging it back in 
> > would create more spikes.
> >
> > Please. No comments about using unsupported versions of Fedora. In many ways 
> > IO find that FC2 is better than F8.
> >
> > Any comments on the mouse problem welcome.
> >
> > Nigel.
> >
> >
> >
> >   
>     Hi Nigel, you will not have serious sparks with your mouse. You can 
> put in and out with no problem. That would be a good test because if a 
> total removal of the mouse solved the problem, you need a new mouse. My 
> money is on the bad mouse because hardware problems are what freeze the 
> screen.
> 
> Karl

Nigel,

While you may not have a problem PS/2 ports were most definitely not
designed to be hot-pluggable. They lack even the rudimentary protective
circuits of the venerable RS232 post, although most modern
implementations are fairly robust. I have seen systems locked up doing
this, although I personally haven't seen any permanent damage.

- Brian 


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