On 03/01/10 18:59, Erik Andrén wrote: > 2010/2/28 Konnor Jean<[email protected]>: > >> I applied almost all the powersaving tricks and tips from lesswatts.org >> and still on total idle with the screen dimmed to maximum, my laptop is >> draining over 72 Watts. Here is what's PowerTop is saying: >> >> ------------------------------------------------------------------------------------------------------------------------------ >> < Detailed C-state information is not P-states (frequencies) >> 1.60 Ghz 0.0% >> 800 Mhz 100.0% >> >> >> Wakeups-from-idle per second : 451.1 interval: 10.0s >> Power usage (5 minute ACPI estimate) : 72.5 W (0.3 hours left) >> >> Top causes for wakeups: >> 45.3% (407.4)<kernel IPI> : Rescheduling interrupts >> 29.9% (269.2)<kernel core> : hrtimer_start_range_ns (tick_sched_timer) >> 7.2% ( 65.1)<interrupt> : extra timer interrupt >> 5.6% ( 50.0) touchfreeze : hrtimer_start_range_ns >> (hrtimer_wakeup) >> 5.3% ( 48.1)<interrupt> : ath >> 1.9% ( 17.4) thunderbird-bin : hrtimer_start_range_ns >> (hrtimer_wakeup) >> 1.0% ( 9.1)<interrupt> : nvidia >> 0.6% ( 5.8) cairo-dock : hrtimer_start_range_ns (hrtimer_wakeup) >> 0.6% ( 5.0)<kernel core> : hrtimer_start (tick_sched_timer) >> 0.3% ( 3.0) rainlendar2 : hrtimer_start_range_ns (hrtimer_wakeup) >> 0.3% ( 2.6)<kernel IPI> : TLB shootdowns >> 0.2% ( 2.0)<interrupt> : sata_nv >> 0.2% ( 2.0) thunderbird-bin : sk_reset_timer (tcp_write_timer) >> 0.2% ( 2.0) emerald : hrtimer_start_range_ns (hrtimer_wakeup) >> 0.2% ( 1.7) gnome-terminal : hrtimer_start_range_ns (hrtimer_wakeup) >> 0.1% ( 1.3)<kernel core> : sk_reset_timer (tcp_delack_timer) >> 0.1% ( 1.1) checkgmail : hrtimer_start_range_ns (hrtimer_wakeup) >> 0.1% ( 1.0) cpupowerd : hrtimer_start_range_ns (hrtimer_wakeup) >> 0.1% ( 1.0)<kernel core> : nv_kern_rc_timer (nv_kern_rc_timer) >> 0.1% ( 0.7) gam_server : hrtimer_start_range_ns (hrtimer_wakeup) >> ------------------------------------------------------------------------------------------------------------------------------ >> >> If I surf the web or listen to music, wakeups go haywire reaching 2500+ >> Please, help me with that as I am getting barely 15 minutes of battery >> life while in windows it is well over an hour. >> >> _______________________________________________ >> Power mailing list >> [email protected] >> http://www.bughost.org/mailman/listinfo/power >> >> > What kernel and distribution are you using? > Ubuntu 9.04 64 bit Kernel 2.6.32.9
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