I've got squeeze running quite nicely with kernel, fglrx & their dependencies coming from backports, but even then if you tax both cores the CPU temperature climes quite quickly.
What I'd like to do is lower the temperature at which active cooling starts
acpi -V Battery 0: Unknown, 99% Battery 0: design capacity 5200 mAh, last full capacity 5360 mAh = 100% Adapter 0: on-line Thermal 0: ok, 75.0 degrees C Thermal 0: trip point 0 switches to mode critical at temperature 95.0 degrees C Thermal 0: trip point 1 switches to mode passive at temperature 120.0 degrees C Cooling 0: LCD 0 of 10 Cooling 1: Processor 0 of 10 Cooling 2: Processor 0 of 10
is "mode critical" the temperature above which the fan starts or at which the system shuts down? Also shouldn't "mode passive" be around 50 assuming it's the temperature below which the fan turns off to rely on passive cooling?
How do I modify these numbers now the /proc/acpi thermal stuff is deprecated?
Thanks for any help. Bob [0] thinks are much better if you do echo dynpm > /sys/class/drm/card0/device/power_method or even echo low > /sys/class/drm/card0/device/power_profile the commands mount -t debugfs none /sys/kernel/debug cat /sys/kernel/debug/dri/0/radeon_pm_info tell you about GPU clock speed etc, I also had Option "ClockGating" "TRUE" Option "ForceLowPowerMode" "FALSE" Option "DynamicPM" "TRUE" in my xorg.conf but I haven't yet tested which of those has the most impact.