Re: ?full cpuspeed?

So how have you solved this problem..


On Friday 30 May 2003 5:32 pm, Bruce Cran wrote:
> On Fri, May 30, 2003 at 01:52:16PM +0000, Sebastian Yepes [ESN] wrote:
> > Hi all i have a Dell inspiron 8500 Notebook that have SpeedStep
> > when i am on AC power i just love my notebook, but when i gen on Battery
> > i can't even see a dvd & and my X run verry slow..
> >
> > is there and way to force fbsd to use 'hw.acpi.cpu.current_speed=8' when
> > i am on battery.. by the way 'hw.acpi.cpu.current_speed' is read only..
> >
> > -- sysctl --
> >
> > --AC Power--
> > hw.acpi.cpu.max_speed: 8
> > hw.acpi.cpu.current_speed: 8
> > hw.acpi.cpu.performance_speed: 8
> > hw.acpi.cpu.economy_speed: 4
> >
> > --Battery Power--
> > hw.acpi.cpu.max_speed: 8
> > hw.acpi.cpu.current_speed: 4
> > hw.acpi.cpu.performance_speed: 8
> > hw.acpi.cpu.economy_speed: 4
>
> There are two possible problems here.  If you power on on AC and switch
> over to battery, you can set the hw.acpi.cpu.economy_speed to 8 to get the
> full CPU speed.  If you power on using battery though, Dell have made it so
> you'll only ever be able to use 60% CPU speed, regardless if you later
> switch to AC. For example, my 2.0GHz i8500 boots up as 1.2GHz and is
> detected as such by FreeBSD.  The economy_speed sysctl will then throttle
> it further to 600MHz.
>
> --
> Bruce Cran
> _______________________________________________
> freebsd-current_at_freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"

-- 


/*
FingerPrint:
 5BF1 58B1 DE75 CBE3 6044
 7098 1246 1EF6 9E78 041C

 _at__at__at__at__at__at__at_   _at__at__at__at__at__at_ _at__at__at__at__at__at__at_ 
 _at__at_!  _at__at__at_ !_at__at_     _at__at_!  _at__at__at_
 _at_!_at_!_at_!_at_   !_at__at_!!  _at_!_at_  !_at_!
 !!:  !!!     !:! !!:  !!!
 :: : ::  ::.: :  :: :  : 
 The Power To Kill LinuX
*/