>>> 1) with RHL73 (w/ fvwm2), the battery lasted for 3.5-4.5 hours. >>> With FC5 or FC6 (with xfce), it lasts for 1.5 hours, even if the >>> computer is "idle". Either ACPI is a lot worse than APM, or >>> something is going on. Any ideas how to debug this? > Also, back in 7.3 time the kernel probably had HZ=100, and now it is > usually 250 or 1000. Slow laptops may not get back to sleep at all between > ticks. 'hald' polls all CD and DVD drives to detect when a disk is inserted. I see about 9 interrupts per second per drive. For example on common x86 clone boxes with CD as /dev/hdc or /dev/hdd (and no harddrives there): grep ide1 /proc/interrupts; sleep 10; grep ide1 /proc/interrupts hald ought to have a settable parameter to control this. Until then: try putting a disk into the drive(s), or kill hald-addon-storage. -- -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
