Hi, I have played with different kernel versions/patches and different configurations to drop down to the power usage.
My results are: (Pentium M processor, 2.13GHz, 2GB Ram) Kernel 2.6.20: 24 Watt (all Values from ACPI) Kernel 2.6.21: 23.5 Watt (65 Wakeups/second) Kernel 2.6.22rc4: 23.5 Watt (65 Wakeups/second) Kernel 2.6.22rc4-mm2: 23.5 Watt (65 Wakeups/second) Kernel 2.6.22rc4-hrt6: 23.5 Watt (12.5 Wakeups/second) Kernel 2.6.22rc4-hrt6 in single user mode, only the absolut needed Modules: 23.4 Watt (7.5 Wakeups/second). The System stay in C3 for 99.9% of time, (133 ms) When i switch from the cpu gonvernour from ondemand to performance, than the powerusage rises to 33 Watt. Deactivation of AC97, Bluetooth, Wifi, ... (every hint) doesn't change the powerusage. When i lower the LCD-Backlight, then i can come down to 21 Watts, but i can't see anything on the display ;-) current conlusion: Kernel 2.6.21.1 seems to be the best kernel for my system (Kernel 2.6.22rc4 brokes my Wifi). HPET seems to be useless for my system. Thanks to powertop i know that i have had a good configuration and it is now a little bit better than before. But there was no "magic switch" that extents significant the life of my batteries. Greetings Martin _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
