Fan Control Success on IBM T40?

[Jeffrey Katcher]

I've been playing with adaptive power management for my Thinkpad T40, running
an up-to-date current with ACPI.  While I can cycle the clock on demand, I'm
noticing that once the fan comes on, it stays on.  Judging from the visible
variables, there's not a lot of control there.  I even notice the lack of 
battery time, though I get a coherent number from apm.  Can I do anything to
remedy this?  I'm running BIOS 2.03 and have tried a slightly patched DSDT
with little visible difference.  There is a later BIOS, but as I don't have
Windows or even a floppy, it's a pain to try (also I've really been
burned by IBM BIOS upgrades before on an older A20p).

Jeff Katcher

---- sysctl hw.acpi dump ----
hw.acpi.supported_sleep_state: S3 S4 S5 
hw.acpi.power_button_state: S5
hw.acpi.sleep_button_state: S1
hw.acpi.lid_switch_state: S1
hw.acpi.standby_state: S1
hw.acpi.suspend_state: S3
hw.acpi.sleep_delay: 5
hw.acpi.s4bios: 0
hw.acpi.verbose: 0
hw.acpi.disable_on_poweroff: 1
hw.acpi.reset_video: 1
hw.acpi.cpu.throttle_max: 8
hw.acpi.cpu.throttle_state: 8
hw.acpi.cpu.cx_supported: C1/1 C2/1 C3/85
hw.acpi.cpu.cx_lowest: 0
hw.acpi.cpu.cx_history: 10808/0 0/0 0/0
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.tz0.temperature: 3002
hw.acpi.thermal.tz0.active: -1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 3617
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 3662
hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
hw.acpi.battery.life: 100
hw.acpi.battery.time: -1
hw.acpi.battery.state: 0
hw.acpi.battery.units: 1
hw.acpi.battery.info_expire: 5
hw.acpi.acline: 1



	
		
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