Hej list, I have some strange phenomenons on my Gericom notebook running suse 8.1 and I _think_ it has something to do with power management. apm says there is no apm support in the kernel. A custom 2.4.20 did not solve the problem neither. sometimes the notebook runs with 2,1Ghz instead of 2,53Ghs. cpuinfo says: processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Pentium(R) 4 CPU 2.53GHz stepping : 7 cpu MHz : 2141.277 cache size : 512 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 pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm bogomips : 4259.84 Obviously _something_ told the processor to run in power safe mode... but when? and why? any ideas how to make apm work on this hardware? cheers Javor Evstatiev d-con dynamic - communication network javor.evstatiev@d-con.com http://www.d-con.com/
On Fri, Feb 07, Javor Evstatiev wrote:
Hej list,
I have some strange phenomenons on my Gericom notebook running suse 8.1 and I _think_ it has something to do with power management.
apm says there is no apm support in the kernel. A custom 2.4.20 did not solve the problem neither.
sometimes the notebook runs with 2,1Ghz instead of 2,53Ghs. cpuinfo says:
processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Pentium(R) 4 CPU 2.53GHz stepping : 7 cpu MHz : 2141.277
this is calculated only at boottime and does never again change, even if the processor changes it's speed.
Obviously _something_ told the processor to run in power safe mode... but when? and why?
ACPI is your friend. Have a look at /proc/acpi/processor/CPU0/performance. You can change the performance with 'echo X > /proc/acpi/processor/CPU0/performance' (X=0 or 1)
any ideas how to make apm work on this hardware?
I assume it has no APM. But you can try booting with acpi=off. Then the only way to deal with processor performance is the BIOS setup. -- ciao, christian -------------------------------------------------------------------- Verglichen mit jedem x-beliebigen Redmonder Betriebssystem-Clone ist Linux geradezu eine leuchtende Perle der Datensicherheit. ------ Frank Rennemann (http://www.linux-knowledge-portal.org) -----
participants (2)
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Christian Zoz -
Javor Evstatiev