Date: Fri, 18 Jul 2003 09:01:51 -0700 From: "Kevin Oberman" <oberman@es.net> To: Tobias Roth <roth@iam.unibe.ch> Cc: mobile@freebsd.org Subject: Re: dmesg showing wrong frequency (IBM T30) Message-ID: <20030718160151.74BEE5D07@ptavv.es.net> In-Reply-To: Message from Tobias Roth <roth@iam.unibe.ch> <20030718154650.GA22170@speedy.unibe.ch>
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> Date: Fri, 18 Jul 2003 17:46:51 +0200 > From: Tobias Roth <roth@iam.unibe.ch> > > On Fri, Jul 18, 2003 at 08:07:56AM -0700, Kevin Oberman wrote: > > Were you on AC or battery when you booted? > > > > It seems that the T30 (and many other laptops from multiple vendors) > > does not change the CPU speed when APM/ACPI from FreeBSD tells it > > to. If I boot on battery, my system stays at 1.2 GHz and if I boot on > > AC power, the system runs 1.8 GHz. Changes to the power source made > > after it is up seem to have no effect. > > i was on AC all the time. i tried all combinations in the bios > (speedstep on/off, max performance setting, ...), always the same. > > how do you detect what clockspeed your system runs at? did your dmesg > ever show something close to 1.8GHz? > > also, windows is always detecting those 1.2GHz, which indicates for me > that the problem is not within the freebsd apm/acpi implementation. > i am compiling -current at the moment to see what acpi is reporting. > > but then, the system is going back to ibm anyway because the second ram > slot dies (a known problem). this will possibly force them to switch > the mainboard, and i will then see whether the new cpu gets detected > differently (and maybe even my ovberheating problems will be solved). I watch my CPU speed with the gkx86info plug-in for gkrellm. At this time the plug-in in ports is for gnome1.4, but there is a gnome2 release available that I built and use on FreeBSD. (I really should turn it into a port and submit it.) -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634
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