Arch Linux

alex.forencich

Member

Registered: 2011-05-29

Posts: 96

Laptop coming out of sleep randomly

My laptop does not always stay in sleep mode.  If I close the lid to put it to sleep, it will turn on in the latop sleeve in my backpack sometime later and get very very hot while depleting the battery.  This is less likely to happen if I manually put it in standby mode before closing the lid.  I have not been able to figure out what is causing the laptop to come out of sleep mode, so an alternative would be some sort of a failsafe.  My laptop right now is setup to go to sleep if the lid is closed and the AC adapter is unplugged, but it seems that the event that triggers the power state change is the lid close as the computer will only go to sleep if the adater is unplugged before the lid is closed.  Is there any way to force the computer into sleep mode if the lid is closed and the AC adapter is unplugged, independent of the lid close event?  Perhaps a cron job that runs every few minutes would be more reliable.

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,612

Re: Laptop coming out of sleep randomly

The cron job could do it, or a systemd timer.   But, why does it wake up?
I assume there is no access to the keyboard, so a kkey event should be out of the picture.
Do you have wireless mouse in the backback?
Does your phone associate with the laptop via Bluetooth?  Any correlation of wake up to your phone ringing?
Could it be a WOL event?

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alex.forencich

Member

Registered: 2011-05-29

Posts: 96

Re: Laptop coming out of sleep randomly

I'm stumped as to why it is waking up.  There is no keyboard access and no wirless devices of any sort - no bluetooth associations, no USB 'bump' receivers for wireless keyboards or mice.