Messages in this thread | | | From | Andrey Borzenkov <> | Subject | Re: cpufreq on Toshiba Portege 4000? | Date | Sun, 8 Jan 2006 20:33:47 +0300 |
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On Monday 01 August 2005 22:06, Dave Jones wrote: > On Mon, Aug 01, 2005 at 09:56:17PM +0400, Andrey Borzenkov wrote: > > Toshiba documentation claims it supports speedstep technology. It has > > Ali chipset and PIII CPU: > > > > {pts/1}% lspci > > 00:00.0 Host bridge: ALi Corporation M1644/M1644T Northbridge+Trident > > (rev 01) 00:01.0 PCI bridge: ALi Corporation PCI to AGP Controller > > 00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03) > > 00:04.0 IDE interface: ALi Corporation M5229 IDE (rev c3) > > ... > > > > Any cnahce to use cpufreq (or compatible) technique here? > > Nope, The speedstep-smi driver only works on Intel chipsets. >
well, acpi-cpufreq appears to work here. The only drawback is that BIOS supports only 2 states (750 and 500MHz) while Toshiba HCI interface can switch between 8 levels; unfortunately I have no idea what frequencies they have.
Is there any utility to measure actual CPU frequency? If I can determine real speed, I could try extend DSDT to support other levels too.
TIA
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