Anyone else has experienced such weired thing?
I used to switch my laptop asleep when I go to bed,but in less than 30 minutes it automatically wakes up,why?
Anyone else has experienced such weired thing?
I used to switch my laptop asleep when I go to bed,but in less than 30 minutes it automatically wakes up,why?
Laptops can be configured to wake up by a number of events. This can range from Wake-on-lan (network activity), input devices etc..
To rule out which action is causing the wake up in your case, I'd first disconnect all cables (network cable, mouse, other USB devices...). Then send it back to sleep and see if it still wakes up. If it doesn't, connect one by one again.
If it only happens occasionally, it could be Windows 7 waking the computer out of standby to perform the automated updates (the default time is 03:00).
If this is a ThinkPad, it might be caused by Wake-on-LAN. I've noticed that they would occasionally spontaneously resume, even when no Ethernet cable is connected. Try disabling Wake-on-LAN in the BIOS.