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Re: Mouse pointer locking up on A4tech scrollball mouse



On Thu, 2008-01-24 at 23:02 +0100, Nigel Henry wrote:
> On Thursday 24 January 2008 22:33, Brian Gaynor wrote:
> > 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
> 
> Well I wasn't intending to pull the mouse plug on the ps2 port just in case it 
> damaged the mobo. I was looking really for some way of taking the power off 
> of the ps2 mouse port in software, then putting it back on. It appears that 
> when this A4tech scrolltech mouse's pointer locks up, the only option is to 
> take the power away from the mouse, then re-connect it, which is tantamount 
> to pulling the ps2 plug, then putting it back in.
> 
> If there's no way of totally disabling the ps2 mouse port, then re-enabling 
> it, using software and the keyboard, then it's no problem. it's only an 
> intermittant problem, and even though I may lose some stuff on open consoles 
> when having to do a shutdown, it's no big deal.
> 
> I just thought that someone might have a quick fix.
> 
> I have asked this question before, but have never found a fix for it.
> 
> Thanks for the replies.
Didja check your bios setting? Ric

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