2007/6/25, Jean-Paul Lacquement <[EMAIL PROTECTED]>:
I recently compiled kernel 2.6.22-rc5 with hrt1 patch and powertop.
[...]
Power comsuption is still +- 15W as reported by powertop even if I unplug my usb mouse so USB_SUSPEND is enabled and ipw2200 is down. Do you have any idea?
I have reduced my IBM X30 power usage to 9,3 W with 2.6.22-rc5-hrt1. As I have started from about 16 W it is not very high now, but with stock Debian 2.6.21 (from unstable) I have only 8,6 W. For me it's better to not use HPET for unknown reason. Enabling Laptop mode with "laptop_mode start force" saves about 3-4 W when using only a text editor and latex. Only saving files and generating PDFs wakes up disk and makes CPU to enter C0 and higher P-state. I also found that lowering brightness of screen lower power usage. It be nice if powertop can suggest tweaking brightness. And finally I found that XFCE4 battery plugin consumes a lot of power making ACPI busy continuously. In general I have doubled my battery work time :) Regards, -- Krzysztof Burghardt <[EMAIL PROTECTED]> http://www.burghardt.pl/ _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
