Created attachment 33772 [details] Output of cpuinfo, cpufreq-info, lspci, modules and ioports. Hi, I'm running an ubuntu 10.10 on my laptop Inspiron 8600, it doesn't scale its cpu frequency, that's "current policy" in cpufreq-info wich is wrong: "current policy: frequency should be within 600 MHz and 600 MHz." the cpu is is blocked to 600 MHz and "cpufreq-set" can set anything. I try to fix it in /etc/sysfs.conf but no way... It doesn't work with kernel 2.6.35 but I have tested too the kernel found on: http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.36-rc7-maverick/ (http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2010-10-16-maverick/ also) The lastest bios was already on board and I ran a live cd ubuntu 10.4 with 2.6.32-24 kernel and frequency scaling worked well. In the attachment, there is cpuinfo, cpufreq-info, lspci, modules and ioports. I hope that it will help. Thanks. Lionel
the output of "grep . /sys/devices/system/cpu/cpu0/cpufreq/*" gave: /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq:1700000 /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq:600000 /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_transition_latency:10000 /sys/devices/system/cpu/cpu0/cpufreq/related_cpus:0 /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies:1700000 1600000 1400000 1200000 1000000 800000 600000 /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors:conservative ondemand userspace powersave performance /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq:600000 /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver:acpi-cpufreq /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:ondemand /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq:600000 /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq:600000 /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed:<unsupported> scaling_setspeed:<unsupported> in fact I don't know if my bug report is at the right place. Lionel
Will you please add the boot option of "cpufreq.debug=0x07" and attach the output of dmesg? Please also attach the output of acpidump, /proc/cpuinfo. Thanks.
> /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq:600000 someone sets the cpu p-state limit. what's the kernel version of ubuntu 10.10? there should be a "bios_limit" file at /sys/devices/system/cpu/cpu0/cpufreq/. does the problem still exists if you build in the processor driver and boot with processor.ignore_ppc?
ping...
Bug closed as there is no response from the bug reporter. Please feel free to re-open it at any time if the problem can be reproduced in the LATEST upstream kernel.