What you are seeing is probably a short dream sequence. If you watch the event queue, you'll probably see an AutoOff character about 3 ticks after the LateWakeup. Some devices, the screen is coming on and going right back off again. If you put in a delay when the AutoOff of SleepRequest occurs, you'll probably see the screen come on.
There are several reasons for the device to wake up. Many interrupts will do it. If you are using the serial port, I've seen it get into a state where it won't let the device sleep. If the phone needs service, the device will wake. If NetLib needs to respond to something, the device wakes. Try shutting down various services and see if your waking stops. This has been a thorn in my side for a long time. The spec says EarlyWakeup, then either SleepRequest/SleepNotify to go back to sleep, or LateWakeup, signifying it's waking past dream state to fully awake (screen on). This makes sense, but this is not what happens. What actually happens is you'll get the EarlyWakeup, then the LateWakeup, then either AutoOff event to go back to sleep or a selection of other events indicating you might come fully awake. Sometimes, I need to know when the device is dreaming, instead of actually waking. It is difficult to determine. I find you receive the EarlyWakup and then the LateWakeup, and then you have to wait for something else to happen. If I just wanted to know if the device is awake (screen on or not), I don't have to look at anything (if I'm running, I'm obviously awake!). But, I need to know the difference between dream and wake. That's tough because you have to 'predict' waking. It also inserts dead time in your process, because you can't tell what you'll be (dream or wake) until some later event occurs. On 9/29/06, Gary <[EMAIL PROTECTED]> wrote:
I've registered myself for three notifications: sysNotifySleepRequestEvent sysNotifySleepNotifyEvent sysNotifyLateWakeupEvent Mostly I seem to get notified when I would expect, but I'm now seeing some strange behavior. I'm getting three notifications back to back, in this order: sysNotifyLateWakeupEvent sysNotifySleepRequestEvent sysNotifySleepNotifyEvent So it looks like the device is fully waking up, and then immediately going back to sleep. This patter then repeats every 15 seconds. I'm watching the device, and it's not waking up (i.e. the screen stays off). I've currently got my app set on an alarm to wake up once per minute (for debugging purposes), and this is working correctly. Screen comes on, app does it's thing, and the device goes back to sleep. I then get the strange wakeup/sleep combinations every 15 seconds until the device wakes up "for real" again. Anyone ever seen anything like this? Thanks, Gary -- For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
-- yisdersomenimororsisasisdenderisorsis? Jeff Loucks -- For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
