Paul Menzel wrote: > Dear list, > > > thanks to the Debian packagers I updated to Powertop 1.11 today. (I will > send in tests for the other thing (units for calculations) some other > day.) > > Here is the new dump for the EeePC 4G and the USB device. Sorry that I > did not change to English language. > > The dump was taken using an ssh-session and only GDM was running and > nothing else done after boot. > > > PowerTOP 1.11 (C) 2007, 2008 Intel Corporation > > Sammle Daten für 15 Sekunden > > > Cn Verweildauer > C0 (Prozessor läuft) ( 0,9%) > zyklisches AbfraC1 0,0ms ( 0,0%) > C1 0,0ms ( 0,0%) > C2 0,0ms ( 0,0%) > C3 69,8ms (99,1%) > P-States (Frequenzen) > Aufwachen pro Sekunde : 14,3 Intervall: 15,0s > Keine ACPI Stromverbrauch-Schätzung verfügbar > Häufigste Ursachen für das Aufwachen: > 64,1% ( 13,3) <interrupt> : uhci_hcd:usb4, HDA Intel, > i...@pci:0000:00:02.0 > 8,0% ( 1,7) gdmlogin : schedule_timeout (process_timeout) > 4,8% ( 1,0) ntpd : do_setitimer (it_real_fn) > 4,8% ( 1,0) dhcdbd : schedule_timeout (process_timeout) > 4,8% ( 1,0) Xorg : schedule_timeout (process_timeout) > 2,6% ( 0,5) <Kernel Modul> : neigh_table_init_no_netlink > (neigh_periodic_timer) > 2,6% ( 0,5) <Kernel Kern> : schedule_delayed_work_on > (delayed_work_timer_fn) > 1,6% ( 0,3) <interrupt> : ata_piix > 1,3% ( 0,3) <Kernel Kern> : neigh_table_init_no_netlink > (neigh_periodic_timer) > 1,0% ( 0,2) init : schedule_timeout (process_timeout) > 1,0% ( 0,2) ifconfig : atl2_open (atl2_watchdog) > 1,0% ( 0,2) events/0 : __netdev_watchdog_up (dev_watchdog) > 0,3% ( 0,1) screen : do_setitimer (it_real_fn) > 0,3% ( 0,1) sshd : sk_reset_timer (tcp_write_timer) > 0,3% ( 0,1) <Kernel Kern> : neigh_add_timer (neigh_timer_handler) > 0,3% ( 0,1) touch : start_this_handle (commit_timeout) > 0,3% ( 0,1) hald : schedule_timeout (process_timeout) > 0,3% ( 0,1) rsyslogd : schedule_timeout (process_timeout) > 0,3% ( 0,1) <Kernel Kern> : page_writeback_init (wb_timer_fn) > 0,3% ( 0,1) pdflush : blk_plug_device (blk_unplug_timeout) > > aktuelle "USB suspend" Statistiken > Name des aktiven Gerätes > 0,0% USB Gerät usb5 : EHCI Host Controller (Linux 2.6.26-1-686 ehci_hcd) > 0,0% USB Gerät usb4 : UHCI Host Controller (Linux 2.6.26-1-686 uhci_hcd) > 0,0% USB Gerät usb3 : UHCI Host Controller (Linux 2.6.26-1-686 uhci_hcd) > 0,0% USB Gerät usb2 : UHCI Host Controller (Linux 2.6.26-1-686 uhci_hcd) > 0,0% USB Gerät usb1 : UHCI Host Controller (Linux 2.6.26-1-686 uhci_hcd) > > > Am Sonntag, den 23.11.2008, 09:11 -0700 schrieb Nathan Coulson: > > […] > >> I've been researching eeepc power reduction tweaks back when I had >> some spare time, and I came up with the following suggestions. > > […] > >> * CONFIG_SND_HDA_POWER_SAVE=y & >> CONFIG_SND_HDA_POWER_SAVE_DEFAULT=10: These are kernel configuration >> options that will allow your soundcard to suspend itself when it has >> not been used for 10 seconds. The above kernel configuration kernel >> already has this enabled. > > So this seems to be the culprit. It is strange for me or new to me that > these sound devices communicate using USB. I will test with those > setting is some days on to see if it goes away.
they might be sharing an irq together with the USB subsystem, which is quite common, and confuses powertop. Auke _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
