Hi, On Wednesday 09 December 2009 06:20:06 pm Rüdiger Kramolisch wrote: > hi, > > i am having issues with the intel q8400s and p8600 cpu. both dont do > frequency scaling. The newer CPUs might be unknown to the BIOS? Did you upgrade the CPUs? Best try a BIOS update. If it still does not work check whether they should be fully supported. You could check whether ACPI cpufreq functions are exposed by following these instructions: ftp://ftp.suse.com/pub/people/trenn/How_to_check_for_ACPI_BIOS_syntax_bugs.txt and then do: grep _PSS *.dsl If this doesn't show anything, the CPU is not recognized by the BIOS and BIOS does not export necessary functions to the OS. dmesg/syslog after trying to load acpi-cpufreq should also point to a firmware upgrade now IIRC. Thomas > q8400s: > linux-2.6.31.6 > cpufreq-info > cpufrequtils 005: cpufreq-info (C) Dominik Brodowski 2004-2006 > Report errors and bugs to cpufreq@xxxxxxxxxxxxxxx, please. > analyzing CPU 0: > no or unknown cpufreq driver is active on this CPU > analyzing CPU 1: > no or unknown cpufreq driver is active on this CPU > analyzing CPU 2: > no or unknown cpufreq driver is active on this CPU > analyzing CPU 3: > no or unknown cpufreq driver is active on this CPU > > > p8600: > linux 2.6.32 > cpufreq-info > cpufrequtils 006: cpufreq-info (C) Dominik Brodowski 2004-2009 > Report errors and bugs to cpufreq@xxxxxxxxxxxxxxx, please. > analyzing CPU 0: > no or unknown cpufreq driver is active on this CPU > maximum transition latency: 4294.55 ms. > analyzing CPU 1: > no or unknown cpufreq driver is active on this CPU > maximum transition latency: 4294.55 ms. > > the computer i have the q8400s in it, had a few hours ago a q6600.... > frequency scaling worked with the q6600 without any problems. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
