On Saturday 12 May 2007 00:07:18 Arjan van de Ven wrote: > What's eating the battery life of my laptop? Why isn't it many more > hours? Which software component causes the most power to be burned? > These are important questions without a good answer... until now. This is a really great tool and presents a very intuitive alternative to the timer stats file.. On a Core 2 Duo Macbook, Linux always gets around 3.2h battery, OS X about 4.2h. This tool has identified that uhci_hcd is where 75% of the ticks are going when X is not loaded. Unloading uhci_hcd drops the battery life back to around 4.2h, but I lose the keyboard. Is there any way to find out what USB driver is causing usb_uhci to be this busy? (BTW, the link to Keith's patch for dhcdbd seems to be broken on your homepage.) -- Cheers, Alistair. Final year Computer Science undergraduate. 1F2 55 South Clerk Street, Edinburgh, UK. - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html