Most recent kernel where this bug did *NOT* occur: there's no kernel without 
this bug
Distribution: openSUSE 10.2, mandriva 2007
Hardware Environment: Asus Z9252Va, but this affects most Asus Notebooks (and 
some others (sony vaio)
Software Environment:
Problem Description: The notebooks are really slow when they are plugged in. 
When they're running on battery there's no problem with performance... but when 
you plug them in again the performance decreases rapidly... we've found a 
solution on the linux-club forum: 
http://www.linux-club.de/viewtopic.php?p=456891#456891  
the failure is because of the smp kernel which is integrated into the kernel, 
and so the notebooks choose a false mode for it.. when you deactivate smp in 
the kernel and compile it new the problem is solved.. so maybe there's a 
possibility to detect whether it's an asus notebook and therefore deactivate 
smp.
Steps to reproduce: everytime (during boot, work, simply everytime)