Messages in this thread |  | | | Date | Fri, 31 May 2002 21:51:44 -0400 | | From | Gerald Britton <> | | Subject | Re: Linux 2.4.19pre9-ac3 |
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> > Linux 2.4.19pre9-ac3 > > o Cpufreq updates (Dominik Brodowski, Dave Jones0 > > | Now includes some reverse engineered speedstep support > > Two points worth mentioning in regard to this. > 1. The first type of speedstep (found in systems with BX chipsets) > isn't supported. Only the later type found in systems with ICH > chipsets will work with this driver.. > 2. Dominik did 99.9% of the Spudstop work, so all offers of free moneyi > should be directed to him.
This is on an IBM Thinkpad T23:
cpufreq: Intel(R) SpeedStep(TM) support $Revision: 1.7.2.2 $ cpufreq: chipset 0x3 - processor 0x2 cpufreq: read at pmbase 0x1000 + 0x50 returned 0x0 cpufreq: read at pmbase 0x1000 + 0x50 returned 0x0 cpufreq: writing 0x1 to pmbase 0x1000 + 0x50 cpufreq: read at pmbase 0x1000 + 0x50 returned 0x1 cpufreq: change to 0 MHz succeded cpufreq: read at pmbase 0x1000 + 0x50 returned 0x1 cpufreq: read at pmbase 0x1000 + 0x50 returned 0x1 cpufreq: writing 0x0 to pmbase 0x1000 + 0x50 cpufreq: read at pmbase 0x1000 + 0x50 returned 0x0 cpufreq: change to 598 MHz succeded cpufreq: read at pmbase 0x1000 + 0x50 returned 0x0 cpufreq: currently at high speed setting - 598 MHz CPU clock: 598.500 MHz (731.500-598.500 MHz)
The low speed setting looks ok, but the high one is obviously wrong. It's a 1.13Ghz CPU, /proc/cpuinfo lists it as this:
vendor_id : GenuineIntel cpu family : 6 model : 11 model name : Intel(R) Pentium(R) III Mobile CPU 1133MHz stepping : 1 cpu MHz : 1132.406 cache size : 512 KB
The chipset in this machine is an Intel i830 chipset. Let me know if there's anything else useful I could do to provide further info.
-- Gerald
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