Messages in this thread | | | From | Andre Eisenbach <> | Subject | Athlon Mobile XP CPU speed problem | Date | Fri, 9 Apr 2004 17:23:55 +0000 |
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Dear Linux-Kernel developers,
My notebook [1], powered by a AMD Athlon XP2400+ (k7) is slowing down when running on battery. This happens regardless of whether or not cpu frequency scaling is enabled or not. /proc/cpuinfo still shows maximum frequency, but the computer is definitely slowed down considerably.
ACPI cpu info shows "throttling contro: no" and "limit interface: no".
It seems like the slowdown occurs out of control of linux cpu frequency scaling or ACPI.
What may cause this slow-down? Is there any driver/kernel option which may let me control this behaviour?
Current kernel version used 2.6.5-mm1 with cpufreq and ACPI compiled in.
Thanks, André Eisenbach
------ [1] Compaq Presario 2100z
/proc/cpuinfo:
processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 10 model name : mobile AMD Athlon(tm) XP2400+ stepping : 0 cpu MHz : 1788.568 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow bogomips : 3538.94
/proc/acpi/processor/CPU0/info
processor id: 0 acpi id: 0 bus mastering control: yes power management: yes throttling control: no limit interface: no - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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