From: Martin van Es Subject: dothan B0 speedstep-centrino driver Date: Mon, 29 Nov 2004 22:34:49 +0100 Message-ID: <200411292234.49860.martin@mrvanes.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@www.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org@www.linux.org.uk Content-Type: text/plain; charset="us-ascii" To: cpufreq@www.linux.org.uk Hi, I recently bought an Acer Travelmate 6000 series laptop with intel 855 chipset and centrino 1.6 processor (dothan B0). Kernel 2.6.9 speedstep-centrino won't recognise the proc with or without ..._CENTRINO_ACPI switched on. I tried 2.6.10rc2 as well, without success. ACPI P-states driver works flawless (so no complaint about the usability of speedstep from that point of view). The reason I write is that I'd like to be able to use the centrino specific driver for it's alleged switching speed improvement and help debugging/updating the driver for this CPU/Laptop/BIOS combination. cat /proc/cpuinfo: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 13 model name : Intel(R) Pentium(R) M processor 1.60GHz stepping : 6 cpu MHz : 598.069 cache size : 2048 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe esttm2 bogomips : 1182.72 dmesg ACPI P-States part of the the bootprocess: ... cpufreq: CPU0 - ACPI performance management activated. cpufreq: *P0: 1600 MHz, 24000 mW, 10 uS cpufreq: P1: 1400 MHz, 20000 mW, 10 uS cpufreq: P2: 1200 MHz, 18000 mW, 10 uS cpufreq: P3: 1000 MHz, 16000 mW, 10 uS cpufreq: P4: 600 MHz, 12000 mW, 10 uS ACPI: (supports S0 S3 S4 S5) ... If there's anything I can do to help. Regards, Martin van Es -- If 'but' was any useful, it would have a logical operator.