[gpm]Fixed problem with switching consoles

[Troy Schultz]

Thank you for your help with the conflict I had with switching consoles.

After a lot of testing, I finally determined that the problem was
actually caused by ACPI and agpgart support in the kernel.  If I remove
agpgart support then I can switch consoles with no problems at all.

I completely forgot that I had made that small change to my kernel on
the same day as I upgraded to gpm 1.20.0

See why you should never change more than one thing at a time ... and I
know better!

Best Regards
- Troy Schultz