sridhar wrote: > On 5 February 2012 10:12, Sridhar Dhanapalan <[email protected]> wrote: > > On 5 February 2012 02:35, Martin Langhoff <[email protected]> > > wrote: > >> On Sat, Feb 4, 2012 at 10:26 AM, Samuel Greenfeld <[email protected]> > wrote: > >>> Disabling suspend during collaboration was discussed a year ago, but as > >>> far > >>> as I know this has not made it into any 11.3.x build: > >>> http://dev.laptop.org/ticket/10363 > >> > >> Thanks for that! I had forgotten ~ > >> > >> Sridhar, Jerry -- that bug has a patch that implements exactly the > >> Sugar change I was proposing. > >> > >> We later dropped it for a change to powerd that we thought would cover > >> all the bases by relying on using wake-on-LAN on the wlan... which we > >> later learned is somewhat buggy. > >> > >> Please test with this patch and let us know whether it helps. > > > > Thanks! We'll add this to our next dev build. > > In our next build, we will be doing two things [1]: > > 1. enabling the patch > 2. disabling wake-on-LAN > > It seems to me that this is the preferred solution. I think we only > need to inhibit power management when collaboration is active, not for > any LAN traffic. > > Living up to its name, wake-on-LAN keeps the XOs awake whenever a > network connection is active, even when you don't really need it to > be. Assuming that it always works as intended (which as you have > explained, it does not), the patch won't be very testable when it is > active.
i guess you're saying that an active network connection should be keeping the laptop awake, and therefore being able to wake it up after it sleeps is a moot point. that may be true for chatty collaboration protocols -- it certainly wouldn't be true for TCP sessions (which isn't your use case -- i understand that). but in addition, without wake-on-lan, a sleeping laptop will be invisible to its peers, at least until the user wakes it up. is that okay? paul > > erikos reckons that the patch won't do much [2], but the testing > performed so far seems to be small-scale. Hopefully we'll get some > feedback on this after we put out our build. > > Sridhar > > > [1] https://dev.laptop.org.au/issues/1049 > [2] http://dev.laptop.org/ticket/10363#comment:21 > > > > Sridhar Dhanapalan > Engineering Manager > One Laptop per Child Australia > _______________________________________________ > Devel mailing list > [email protected] > http://lists.laptop.org/listinfo/devel =--------------------- paul fox, [email protected] _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
