Messages in this thread | | | Date | Sun, 3 Aug 2008 03:00:50 -0700 | From | "S K" <> | Subject | cpufreq doesn't seem to work in Intel Q9300 |
| |
Hi,
I have an Intel Core 2 Quad and running kernel 2.6.25.11-97.fc9.i686. cpufreq doesn't seem to work. The cpufreq scaling monitor in Gnome says CPU Freq scaling is not supported in my CPU. The CPU can run at 2.0 and 2.5 GHz but mine always runs at 2.5 GHz in Linux.
So I checked /sys and there is no cpufreq dir in /sys/...
# ls /sys/devices/system/cpu/ cpu0 cpu1 cpu2 cpu3 cpuidle sched_mc_power_savings # ls /sys/devices/system/cpu/cpuidle/ current_driver current_governor_ro
I have no clue what cpuidle directory is for.
I added cpufreq.debug=7 in kernel boot params and saw the following in the dmesg:
speedstep-smi: No supported Intel CPU detected. cpufreq-core: CPU 0: _PPC is 0 - frequency not limited cpufreq-core: CPU 3: _PPC is 0 - frequency not limited cpufreq-core: CPU 1: _PPC is 0 - frequency not limited cpufreq-core: CPU 2: _PPC is 0 - frequency not limited cpuidle: using governor ladder cpuidle: using governor menu
I looked at arch/x86/kernel/cpu/cpufreq/speedstep-smi.c and it seems to detect only Pentium IIIs.
Anyone know what files have the cpufreq code for Intel Core 2? Does cpufreq support Intel Core 2 Quads? Especially the Q9300? If not, anything I can do to help?
Thanks, SK
# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Core(TM)2 Quad CPU Q9300 @ 2.50GHz stepping : 7 cpu MHz : 2502.516 cache size : 3072 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 4 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr sse4_1 lahf_lm bogomips : 5015.23 clflush size : 64 <snipped the rest> - shows 3 more similar sections.
| |