From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?RmVyZGluYW5kIEjDvGJuZXI=?= Subject: Re: CPU-Frequency limited to lowest available frequency while under load Date: Tue, 06 Nov 2007 17:01:25 +0100 Message-ID: <47308FD5.4060707@cvmx.org> References: <4727062E.9090806@cvmx.org> <1193837319.4590.466.camel@queen.suse.de> <472A15FF.5040504@cvmx.org> <1193941879.4202.17.camel@noname> <472A1CC0.5080409@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <472A1CC0.5080409@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org+glkc-cpufreq=gmane.org@lists.linux.org.uk To: cpufreq@lists.linux.org.uk Jarod Wilson wrote: > I didn't pay much attention to earlier posts in this thread, so pardon > if this has already been covered, but... > > I had a similar sounding case reported in the Red Hat bugzilla, where a > Dell laptop wouldn't scale above its minimum frequency if the system was > running on a travel charger. This turned out to be a limitation imposed > intentionally by the system BIOS (and documented somewhere on Dell's web > site). On battery and on the normal charger, the same system had no > problems whatsoever. > > Just throwing it out there, ignore me if its irrelevant. :) > I gave it a shot and did a BIOS update and played around with the options in the BIOS. Now it does scale correctly... I should have tried that earlier, I did not expect that, because I "only" did a kernel upgrade and did not touch the BIOS in any way... Thanks! Ferdinand