Re: Kernel 2.6.x mouse and KVM help needed

From: Andi Kleen (freitag_at_alancoxonachip.com)
Date: 01/24/04 

Date: Sat, 24 Jan 2004 17:20:20 +0100

Kris Sanders <kris@solanix.org> writes:

> I have just recently upgraded to kernel 2.6.1 using Slackware 9.1 with
> pretty much all the current updates. I have found that when I am in X
> Windows and switch to a different box and then back that I lose control of
> the pointer. I had this problem with XFree 3.3.x and when 4.x.x came out
> they added a reinit routine. That solved the problem that time. The temp
> fix that I had was to switch to a console and then back.

The 2.6 in kernel mouse driver is to blame whose auto detection
tries to be too clever for some KVMs.

In 2.6.0 you can pass "psmouse_noext" on the kernel command line to disable
that. On 2.6.1 it is "psmouse_base.psmouse_noext"
In 2.6.2 it will be apparently "psmouse.max_proto=bare"

Yes, you have to reboot to change the mouse settings. It's not a joke,
even though it looks like one. I find it sad too.

With some luck at least the command line argument will settle in 2.6.2,
although I am not very optimistic given past experiences.

-Andi

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