2002-09-10 23:55:45

by Stephen Hemminger

[permalink] [raw]
Subject: Problems with 2.4 and 2.5 with KVM/mouse

I have two machines on a KVM and when I switch between them the mouse
pointer goes wacky and causes random clicks. This has always been
somewhat of a problem when both machines were running 2.4 but there was
a workaround. If I switched consoles (alt-F1, alt-F7) then the mouse
would restore back to correct behaviour.

Now, on my test machine running 2.5 the mouse works until I do a KVM
machine swap. Then the 2.5 machine never clears up the mouse wackiness
and the only choice is to reboot.

The mouse is a Logitech optical mouse with a wheel "Wheel mouse". The
mouseconfig is the same on both machines. The KVM is a Belkin four port.

Probably the simplest is to buy another mouse or switch to USB...




2002-09-16 17:50:26

by Stephen Aiken

[permalink] [raw]
Subject: Re: Problems with 2.4 and 2.5 with KVM/mouse

>Now, on my test machine running 2.5 the mouse works until I do a KVM
>machine swap. Then the 2.5 machine never clears up the mouse wackiness
>and the only choice is to reboot.

Have you tried restarting gpm?

-Steve
--
The day after tomorrow is the third day of the rest of your life.

2002-09-16 22:28:29

by Stephen Hemminger

[permalink] [raw]
Subject: Re: Problems with 2.4 and 2.5 with KVM/mouse

No change when gpm is killed and restarted

On Mon, 2002-09-16 at 11:56, Stephen Aiken wrote:
> >Now, on my test machine running 2.5 the mouse works until I do a KVM
> >machine swap. Then the 2.5 machine never clears up the mouse wackiness
> >and the only choice is to reboot.
>
> Have you tried restarting gpm?
>
> -Steve
> --
> The day after tomorrow is the third day of the rest of your life.


2002-09-19 18:32:42

by Andreas Steinmetz

[permalink] [raw]
Subject: Re: Problems with 2.4 and 2.5 with KVM/mouse

I do remember that I have one board in my company that doesn't like KVMs
at all (please don't ask for the brand, I'm offsite for a while and
don't remember the type). All other boards connected to KVMs (different
types) and running Linux 2.4 (various versions) work fine.
So I guess you do have a hardware (board) problem.

Stephen Hemminger wrote:
> No change when gpm is killed and restarted
>
> On Mon, 2002-09-16 at 11:56, Stephen Aiken wrote:
>
>>>Now, on my test machine running 2.5 the mouse works until I do a KVM
>>>machine swap. Then the 2.5 machine never clears up the mouse wackiness
>>>and the only choice is to reboot.
>>
>>Have you tried restarting gpm?
>>
>>-Steve
>>--
>>The day after tomorrow is the third day of the rest of your life.
>
>
>
> -
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--
Andreas Steinmetz
D.O.M. Datenverarbeitung GmbH

2002-09-20 20:07:01

by Joy Latten

[permalink] [raw]
Subject: Re:Problems with 2.4 and 2.5 with KVM/mouse

I see the same problem. I am using a Belkin OmniView 4-port KVM switch and
a regular IBM 3-button ps2 mouse. My KVM switch is
hooked between two linux boxes. One box is running linux 2.4.19
kernel and the other linux 2.5.34. Whenever I swap over, the 2.5
machine will not work with the mouse. I see the same behaviour
as reported and must reboot. Restarting gpm doesn't help...
However, I have no problems with the 2.4 machine
whenever I swap over. I only see this with 2.5. I also had 2.5.31
installed and saw the same wacky behaviour.
Prior to installing 2.5, both boxes had versions of 2.4 running
and I didn't have any problems swapping over with the KVM switch on either.
I also am running gnome desktop on both machines.

Joy Latten

PS Please mail any response directly to me as I am not subscribed to
the mailing list. Thanks.


>I do remember that I have one board in my company that doesn't like KVMs
>at all (please don't ask for the brand, I'm offsite for a while and
>don't remember the type). All other boards connected to KVMs (different
>types) and running Linux 2.4 (various versions) work fine.
>So I guess you do have a hardware (board) problem.
>
>Stephen Hemminger wrote:
>> No change when gpm is killed and restarted
>>
>> On Mon, 2002-09-16 at 11:56, Stephen Aiken wrote:
>>
>>>>Now, on my test machine running 2.5 the mouse works until I do a KVM
>>>>machine swap. Then the 2.5 machine never clears up the mouse wackiness
>>>>and the only choice is to reboot.
>>>
>>>Have you tried restarting gpm?
>>>
>>>-Steve
>>>--
>>>The day after tomorrow is the third day of the rest of your life.
>>
>>
>>
>--
>Andreas Steinmetz
>D.O.M. Datenverarbeitung GmbH