Suggestion: Enable the CONFIG_SND_AC97_POWER_SAVE kernel configuration option.
This option will automatically power down your sound codec when not in use,
and can save approximately half a Watt of power.
En gros la gestion de l'usb plombe tout, en sachant que le clavier et le touchpad sont dessus.
[1] conf et package dispos sur http://nicolas.degory.free.fr/blog/index.php/2007/04/10/21-realtime-linux-sur-un-macbook
# macbook
Posté par thranduil . En réponse au journal Utilisation de PowerTop. Évalué à 4.
Cn Avg residency (5s) Long term residency avg
C0 (cpu running) ( 7.6%)
C1 0.0ms ( 0.0%) 0.0ms
C2 1.9ms (18.4%) 1.8ms
C3 1.8ms (74.0%) 1.8ms
Wakeups-from-idle per second : 992.4
Power usage (ACPI estimate) : 20.4 W (2.1 hours left)
Top causes for wakeups:
40.3% (197.6) <interrupt> : uhci_hcd:usb1, ehci_hcd:usb5
14.4% (70.6) <interrupt> : uhci_hcd:usb4, eth0, i915@pci:.&checktime(0000,00,02,':').0
12.0% (59.0) firefox-bin : do_futex (hrtimer_wakeup)
9.5% (46.8) <interrupt> : HDA Intel
7.8% (38.2) amarokapp : schedule_timeout (process_timeout)
2.7% (13.2) <interrupt> : libata
2.0% (10.0) cpufreq-set : cpufreq_governor_dbs (delayed_work_timer_f
2.0% ( 9.8) qjackctl : schedule_timeout (process_timeout)
1.6% ( 8.0) modprobe : usb_hcd_poll_rh_status (rh_timer_func)
1.4% ( 7.0) compiz.real : schedule_timeout (process_timeout)
Suggestion: Enable the CONFIG_SND_AC97_POWER_SAVE kernel configuration option.
This option will automatically power down your sound codec when not in use,
and can save approximately half a Watt of power.
En gros la gestion de l'usb plombe tout, en sachant que le clavier et le touchpad sont dessus.
[1] conf et package dispos sur http://nicolas.degory.free.fr/blog/index.php/2007/04/10/21-realtime-linux-sur-un-macbook