On Thu 2009-09-17 14:24:51, Norbert Preining wrote: > Dear all, > > I have a very strange problem with my Sony VAIO Z11 laptop. When I turn > it off in Linux it still drains battery, and quite a lot indeed, several > percent per hour. > > Interestingly, when shutting down from Windows XP the same doesn't happen, > after 10 hours of off time starting from 100% charge after rebooting I have > still 98.8%, so that is fine (counting that booting costs some energy). > > This is in fact also a problem for many other users using Windows, too, > see [1]. I have checked that on Windows all devices are set up so that > at shutdown and hibernation (S4 and S5) they are going to off state (D3). > > The only thing I can imagine is that one of the devices not completely > of not at all supported by the kernel is not properly shut down. > AFAIS the only device which I have not running here is the fingerprint > scanner. > > My questions are: > - is there a way and if how to check that all devices will get properly > shut down on halt? > - is there any other reason the battery drain might happen? > > Some details about the laptop: > - it has a dual graphic card (Intel and nVidia), the sony-laptop module > (extended for the zseries, see [2], with adaption to 2.6.31 by me [3]), > or the stock kernel sony-laptop plus the nvidia-control module > (by Matthew Garret [4]) can be used to turn the nvidia card of on a > running system so that it does not draw any energy > - lspci -vvv output is attached as lspci.txt > - software running is Debian/sid with kernel 2.6.31 On PC, keyboard driver is expected to shut down the machine; I'd try complaining to Sony, perhaps they have newer bios. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
