pippin;601026 Wrote: > I wonder whether this could be related to the battery issues by changing > the multitasking behavior. Because I only see those under rare > circumstances (I _do_ see them sometimes, too). > > What I've nailed down so far is the following scenario: > iPeng shuts down all it's connections when going to the background (or > whenever the screen saver is activated). > It looks like in this particular case for some reason one of iPeng's > timeout timers does fire after the App got suspended. iPEng doesn't > check for this since it's not supposed to fire when the App is in the > background. I believe this is a bug in iOS 4.2.1 or at least an > undocumented change. Maybe it's indeed related to the push notification > (or other notification services). > > I've seen reports that similar things happen to other Apps, too. > > Now what iPeng does wrongly and what I'm going to change in the next > release is if that timer fires and it finds the server connection down > it will re-build it without checking whether iPeng is supposed to be > sleeping (after all, it wasn't supposed to get the event when > sleeping). This need not be a problem in itself but with a lot of stuff > going on on your server (e.g. because you have a lot of Squeezeboxes) > there could be quite a bit of communication. > But the worst thing is it keeps WiFi open and _this_ definitely can > drain the battery. > > I'm just a bit suspicious about the general behavior of having timers > still fire....
Just to re-state a data point from earlier. The problem is non-existent (for me) after down-grading iPeng to 1.2.7. I've been running 1.2.7 for weeks now on iOS 4.2.1 without a single battery drain problem. With 1.2.10 I consistently had the problem. The problem may have something to do with iOS 4.2.1, but something is also different in a recent version of iPeng. Somewhere between 1.2.7 and 1.2.10 (those are the only 2 versions I have to try) iPeng has changed in a way that exposes the issue. Push notification settings have no effect. No jailbreak here. Hope that helps. John -- 2eleven Transporter > 2 x 1959 McIntosh MC30 Monoblocks > Proac Tablettes 3 SB3s > various pieces of audio gear not worth mentioning ------------------------------------------------------------------------ 2eleven's Profile: http://forums.slimdevices.com/member.php?userid=4685 View this thread: http://forums.slimdevices.com/showthread.php?t=51929 _______________________________________________ plugins mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/plugins
