Guest joyhaa Posted June 1, 2004 Report Share Posted June 1, 2004 I installed Mandrake 10 official to Dell D600 laptop(Pentium M 1600Mhz), it runs just fine and I like it. However, I found sometimes the CPU freq is shown only at 600Mhz(instead of 1600Mhz), I'm using the 2.6.3 kernel: $uname -a Linux joyhaa 2.6.3-7mdk #1 Wed Mar 17 15:56:42 CET 2004 i686 unknown unknown GNU/Linux $cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 9 model name : Intel® Pentium® M processor 1600MHz stepping : 5 cpu MHz : 599.640 <----????? cache size : 1024 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 tm pbe tm2 est bogomips : 1187.84 any insights? TIA Quote Link to comment Share on other sites More sharing options...
liquidzoo Posted June 1, 2004 Report Share Posted June 1, 2004 Check the file /proc/acpi/Processor/CPU0/throttling See what you have in there. I'd be willing to bet that your cpu has been throttled inadvertantly. Post the output of cat /proc/acpi/Processor/CPU0/throttling here so we can see this file. If it has been throttled, there's an easy fix for it. Quote Link to comment Share on other sites More sharing options...
Guest joyhaa Posted June 2, 2004 Report Share Posted June 2, 2004 here is the output: $cat /proc/acpi/processor/CPU0/throttling state count: 8 active state: T0 states: *T0: 00% T1: 12% T2: 25% T3: 37% T4: 50% T5: 62% T6: 75% T7: 87% $chkconfig --list | grep cpi acpi 0:off 1:off 2:on 3:on 4:on 5:on 6:off acpid 0:off 1:off 2:off 3:on 4:on 5:on 6:off i did see 1.6Ghz on /proc/cpuinfo a couple of times before...wierd thanks. Quote Link to comment Share on other sites More sharing options...
Guest joyhaa Posted June 3, 2004 Report Share Posted June 3, 2004 ok, i figured out how to fix it: vi /etc/init.d/acpi add "speedstep_centrino" to MODULES list(the 10th line). Quote Link to comment Share on other sites More sharing options...
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