Hello, It seems the problem is the wireless network interface, could you please post what wifi hardware do you have installed?
Does the situation improve if you turn off your wifi with NetworkManager? The other possible reason for high power draining is the graphics card if you are using the latest open source drivers like nouveau or radeon because the power management in those drivers are in early development. My laptop is an old Intel Core 1 Duo with nVidia graphics and Intel Wireless, the wake ups per second with wifi enabled is about 25 wps and 8 wps with wifi disabled. Consumption with latest nouveau is about 16 - 17 watts but it used to be about 11 - 12 watts with nVidia proprietary driver. Finally, it would be helpful if you post the output of "powertop -d" as root. Regards, William --- El mié 21-abr-10, Andrew Henry <[email protected]> escribió: De: Andrew Henry <[email protected]> Asunto: "normal" values for PowerTop wakeups from idel per second on laptop? A: [email protected] Fecha: miércoles, 21 de abril de 2010, 4:40 Just bought a Thinkpad Edge 13" laptop and running Powertop 1.12 says that wakeups from idle is 219 on average. Battery is a long way from the promised 6-7 hours I read about in tech reviews (not manufacturers own blurb). My server has about 15-30 wakeups from idle running Ubuntu Server 9.10. I installed Ubuntu 10.04 beta2 on the Thinkpad. Is this "normal"? The biggest culprit is kernel scheduler (tick_sched_timer I think) and the iwlagn adapter, and i've manually applied several power saving tips from lesswatts.org without it having any noticeable impact on wakeups from idle: echo 5 > /proc/sys/vm/laptop_mode echo 1500 > /proc/sys/vm/dirty_writeback_centisecs echo min_power > /sys/class/scsi_host/host0/link_power_management_policy ethtool -s eth0 wol d hciconfig hci0 down rmmod <all_bluetooth_modules> I'm using relatime on all filesystems (ext4), using OnDemand CPU Freq. scaling governer and Compiz is disabled. I know I haven't listed what powertop says (at work no access to laptop) but is 219 a general average value or is it way too high for a laptop with wireless/bluetooth? Note that this laptop is a 10 watt laptop using a CULV CPU, hence the average 6-7 hrs real life battery time according to reviews (using Win7). Regards, Andrew -----Sigue archivo adjunto----- _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
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