Alberto Gonzalez wrote: > On Friday 26 June 2009 11:34:13 Jan Willies wrote: >> Hi Alberto, >> >> Am 26.06.2009 00:38, schrieb Alberto Gonzalez: >>> Now I have upgraded to kernel 2.6.30 (a distro kernel - Arch Linux) and >>> powertop tells me to enable USB auto-suspend too, the difference is that >>> now it does have an effect and the wakeups get reduced. The problem is >>> that I lose my mouse and keyboard. Is this the desired effect of enabling >>> USB auto-suspend? Or was the previous behavior the correct one? Hhmm, >>> shouldn't it be something in between, i.e, that USB get suspended when >>> I'm not using the keyboard or mouse but that it wakes up when I do? >> Matthew Garrett blogged some background on this: >> >> http://mjg59.livejournal.com/111995.html > > Thanks for the link. Interestingly Matthew Garrett says there that powertop > is > actually doing it in the wrong way (USB autosuspend), so maybe this is a bug > in powertop (bug in the sense of using a wrong/old implementation)?
Matthew knows where to find me and how to write patches, so I assume he's got something coming for me then... And is he talking about usb autosuspend or bluetooth disable where powertop "gets it wrong"? > As I said in my other reply, I've found out that my mouse can actually auto- > suspend successfully (and wake up) by modifying > /sys/bus/usb/devices/.../power/ausotsuspend (while powertop kills it > altogether). So maybe that's the one that powertop should touch when you > press > the U key? That's the file that powertop touches when you press 'U'. powertop also sets power/level to "auto", meaning the kernel can suspend/resume the device when it wants. if someone has patches on how to improve this, I'll gladly take them... Auke _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
