From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Foster Subject: C-States on Inspiron 6000 Date: Mon, 07 Nov 2005 17:57:57 +0000 Message-ID: <1131386277.16106.19.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org I'm experiencing problems with ACPI C-States higher than 1 an Inspiron 6000. At any higher setting Xorg graphics are choppy and input from the touch-pad is not recognized correctly (e.g. button clicks only register as half-clicks or don't register at all). If I set max_cstate to 1, the problems disappear, although the CPU is about 6 degrees hotter at rest than max_cstate=4. At max C-State 1 the CPU is idle, but at higher max C-States it displays constant spikes. The problem occurs on both Gentoo 2.6.13 and 2.6.14. This problem is always reproducible, by simply changing the max_cstate setting from 1 to 2. (Please CC me replies). Thanks, -Si. ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php