I have an ACER V5-571G laptop which frequently will power back up within a couple of seconds of powering down using the KDE shutdown menu option. I managed to update the BIOS f/w by using a little known key combination when powering it up with no battery. I did this because I did wonder if it might have been a F/W issue and I was not on the latest. Anyway this still happens frequently although if I power it up and immediately shutdown then quite often it will stay off but if I run any programs and shutdown it usually powers up again. I have been searching the net and some have had similar issues which seemed to be USB related although the only thing used on this laptop is a USB mouse. I was wondering is there are any settings I’ve not found relating to USB and how they might (ore might not) affect this. I am unable to find any BIOS settings which relate to USB other than boot options and nothing else is plugged into USB other than the mouse.This laptop has been updated to Leap 15.2 from 15.1 which also showed this problem.
I know I am clutching at straws here but it is driving me to distraction trying to solve this so any ideas will be gratefully received
Read somewhere that someone solved this issue by installing laptop_mode_tools, so did that and it seems like it might have solved the problem. Needs a bit more testing but looking hopeful.
I have read through the forum thread and bug report but I don’t see how this relates to my problem. In my case the laptop shuts down and powers off (ie power light goes out) but then a few seconds later it turns on again and boots up to the grub menu. There is no external monitor in my case. The only thing connected is a USB mouse. As I said the laptop mode tools has fixed the issue at least so far with the testing I’ve done.
OK this problem is strange because yesterday I was shutting it down several times in fact WITH the mouse plugged in and it stayed off, and I was leaving the lid open all the time. This morning it came back on with the mouse plugged in. Now it’s off I can hit FN+F4 which is sleep and nothing happens, open the lid and nothing happens, waggle the mouse and nothing happens. The only thing which turns it on is the power button. So once it is truly off nothing but the power button wakes it up.
I created a service to disable all 3 USB items and ran it OK, the showed as disabled in wakeup when display but the laptop still booted up again! I’ll try the LID0 and SLPB just in case.
I mentioned in the initial post that I did manage to update to the latest which is 2.18. It’s problematic not running Windows but the service manual gives a method to do it without using any OS and that’s what I did. That level is quite old but I could not find anything newer on the ACER site.