[CentOS] Annoying Mouse Tricks

Tue Apr 24 13:16:51 UTC 2007
Mark Weaver <mdw1982 at mdw1982.com>

Christian Wahlgren wrote:
> On 4/23/07, Juan C. Valido <jvalidolnx at juanyjosefina.com> wrote:
>> On Mon, 2007-04-23 at 07:10 +0800, John Summerfield wrote:
>> > Mark Weaver wrote:
>> > > Hi All,
>> > >
>> > > Something that just has been annoying the daylights out of me for the
>> > > past 9 months with no resolution in site. I've got a Hawking HKS 
>> 104 4
>> > > port KVM connecting my Linux workstation, 2 servers, and my wife's
>> > > windows workstation to one monitor, mouse, and keyboard.
>> > >
>> > > No matter how I toggle back and forth whether by keyboard or 
>> directly on
>> > > the device once I come back to the linux desktop scroll wheel on 
>> mouse
>> > > no longer functions. Except for a brief time while running CentOS 4.4
>> > > it's always been this way. I've googled until there were just no more
>> > > places left on the internet and searched through CentOS archives 
>> until
>> > > I'd read everything from balls to bones without finding any helpful
>> > > information.
>> > >
>> > > Does anyone have any ideas or thoughts on how a fella might resolve
>> > > this? When I restart the machine (Linux) the scroll mouse works
>> > > normally, that is until I toggle to the windows machine and back 
>> again
>> > > or to one of the servers and back again. Then the mouse functions 
>> like a
>> > > two button mouse not having a scroll wheel. I appear to be stuck 
>> in KVM
>> > > hell with this.
>> > >
>> >
>> > I have problems, but not yours.
>> >
>> > 1. Replug the mouse?
>> > 2. Replug everything in the KVM? Sometimes mine (Laser junk) 
>> requires this.
>> > 3. Different mouse?
>>
>> I've seen that before. I had to change my KVM. The newer Belkin and
>> Trendnet work. If you get a new one make sure it says that it's
>> compatible with Linux or Unix, I had the same problem with Solaris 10
>> but not anymore...
> 
> I've had the same problem with Belkin with PS/2 connections (erratic
> mouse movements after switching from Windows). But after a change to
> Aten KVM with USB kbd/mouse everything works as expected when
> switching between Windows and Linux boxes and with working scoll wheel
> on the mouse.
> 

yeah... the overall concensus is that a different KVM and possibly a 
different mouse/keyboard will fix the problem, but since that is very 
unlikely to happen I'm going to have to find a software/OS solution. 
That's the biggest reason I'm now looking at what happens at boot time 
to allow the mouse to work correctly and then breaks and doesn't 
function after a KVM toggle back from Windows.

Mark