From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: Re: DSDT Change (Compaq Presario 2100) Date: Fri, 2 Jul 2004 21:21:52 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20040702192152.GB10138@elf.ucw.cz> References: <200405280621.29874.andre@eisenbach.com> <200405291345.51712.andre@eisenbach.com> <20040628213409.GA19468@elf.ucw.cz> <20040702115454.GA12889@elf.ucw.cz> <40E59C64.9050603@eisenbach.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <40E59C64.9050603-+hZUvIEKc2q1Z/+hSey0Gg@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Andre Eisenbach Cc: Erik Meitner , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi! > Thanks for the heads up on this, Pavel! > > I did unplug my batter, started an updatedb and compiled firefox, > coreutils and a new kernel. The battery got warm, but not hot. > Definitely not more then when charging it. > > A curious (unrelated) observation: > The ACPI thermal zone temperature indicated about 68 C at most on > battery doing this. However, when the battery was drained and I plugged > the AC back in, the temperature rose and stayed at about 75 C and the > fans worked audibly harder. This continued even after I removed the > battery, so it's not the additional heat from the charging. > I wonder if something else is throttled when on battery. It's not the > CPU though as benchmarks dont slow down on battery anymore after my DSDT > change. Strange... It could be backlight, but that does not produce enough heat... > As far as the DSDT change goes. Pavel, do you think that the kind of > throtteling they do is an effective way to limit battery current draw? > I am getting more battery life now - even with powernow at "performance". If you are getting more battery life now... well it looks like bios vendor did something very wrong. Pavel -- People were complaining that M$ turns users into beta-testers... ...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl! ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com