FC5, core duo T2600, cpufreq works just for cpu0
Just installed FC5 on Intel core duo T2600 system (MSI 945GT Speedster motherboard).
Frequency scaling worked out of the box (cpuspped - style), but just for cpu0 (core 0). The other core (cpu1) runs all the time on the max clock frequency (2.16GHz), even with minimal system load. Then stopped cpuspeed, tried ondemand: service cpuspeed stop modprobe cpufreq_ondemand echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor echo ondemand > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor with the same result - CPU freq scaling works just for cpu0. Last command gave "No such file or directory" error, so I found out, that /sys/devices/system/cpu/cpu1/cpufreq does not exist! ls /sys/devices/system/cpu/cpu0/ cache cpufreq crash_notes topology ls /sys/devices/system/cpu/cpu1/ cache crash_notes online topology Any idea how to make this work? Is it udev/sysfs issue? Kernel 2.6.17-1.2174_FC5smp cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 14 model name : Genuine Intel(R) CPU T2600 @ 2.16GHz stepping : 8 cpu MHz : 1000.000 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 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 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc pni monitor vmx est tm2 xtpr bogomips : 4320.82 processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 14 model name : Genuine Intel(R) CPU T2600 @ 2.16GHz stepping : 8 cpu MHz : 2158.020 cache size : 2048 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 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 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc pni monitor vmx est tm2 xtpr bogomips : 4316.02 |
Problem solved by flashing motherboard BIOS.
MSI 945GT Speedster comes with 1.0bC BIOS version, which is probably beta. Flashing to real 1.0 downloaded from MSI support site fixed the speedstep problem. |
Tijn
Which cpufreq driver do you use? I can't get cpufreq work with my Core 2 Duo E6300. |
Quote:
P.S. Solved by using speedstep-centrino driver |
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