XPS 15 9560, Shut down everytime I close the lid without power plugged-in

First please clarify whether it goes into hibernation or full shutdown.  The easiest way to test this is to open something like Notepad, enter some text, then do NOT save the file and close the lid.  When you power the system back on, is your Notepad file still open or do you have to log back into Windows as if you just started the system from full shutdown?

If your system is hibernating, you should be able to disable that in Power Options?  Note that by default, the system will go to regular sleep when the lid is closed, but if it stays closed for 3 hours, it will switch to hibernation.  If the system is completely shutting down, I had a problem like that with my XPS 13 9350 where closing the lid would cause it to cut all power to the system rather than going to sleep and staying that way.  It occurred after a BIOS flash even though the system said it flashed successfully.  After messing around with settings and not getting anywhere, I finally decided to just reflash the exact same BIOS I had previously installed.  I didn't expect it to work, but I figured it was worth 2 minutes before resorting to wiping the whole system and reinstalling Windows from scratch.  As it happened, reflashing the same release solved the issue.

I have this exact problem. Whenever I close my lid, the laptop shuts down entirely (not sleeping or hibernating) resulting in lost work! I think this started happening after a BIOS update. My currently installed version is https://www.dell.com/support/home/se/sv/sebsdt1/Drivers/DriversDetails?driverId=HJKH8

Its not something In my own settings as Windows power settings is set to only sleep whenever the lid is closed. 

I have exactly the same problem! PLEASE FIX IT! This is utterly useless - a laptop that won't sleep properly when unplugged! We all seem to have the correct "sleep" settings applied - seems it must be at a bios level.........

I have the same problem on my XPS 15 9570. Dell, please fix this!

Same symptom for XPS 9550 with 1.8.0 BIOS. Problem is gone after downgrade to 1.7.0. I'm hesitant to try upgrade again, but the 'Dell Update' notification is on prompting me every 2 hours to upgrade.

My suggestion is to downgrade one minor level from the problematic BIOS version. Wait for a major Windows update then reinstall the BIOS to the suggested level; or skip one update cycle of the BIOS. As a 3 yr users of 9550, this BIOS upgrade causing close-lid-then-shut-down have had happened a few times to me. 

FYI: Confirming my 9550 had this issue after upgrading to 1.8.0. Downgrading to 1.7.0 resolved it. Shame on Dell - no even basic QA performed. :Angry:

Same issue with my 9550.

Resolved by re-installing the same bios 1.9 !  

I had the same issue with my XPS 13 (9350) running Ubunutu 8.10. I was able to resolve it by updating my kernel using the instructions in this article: https://www.linode.com/docs/platform/update-kernel/

Dell Update, Service Tag , installed on 1/15/2019 and now this problem is back. Crashed while shut on battery four times in four days. This issue has plagued this laptop since I got it 18 months ago. Seems it might be related to the NIC and installing driver updates from Killer software sometimes seems to resolve it...until some new 'update' comes along and causes the borfin to schlump again. Such a fundamental flaw, it's very frustrating. Is this how Dell wants it's customers to feel about its products?

Wow!  I have the same problem with my xps 15 9550 with the latest bios.  They got to be kidding us!

Dell, do your job and fix it.  I wouldn't buy a car that will not start again without a jumpstart so why do they do this?

ASUS next pc.

Hi richmun,

Thanks for posting.  Apologies that your system is not performing as expected.

Your post does not indicate if you've been able to perform a system diagnostics yet.  Please run Dell SupportAssist, make a note of any error messages encountered and post back.

If you don't see any errors, then perhaps re-installing the drivers may be helpful.  It is suggested that you update your chipset drivers and BIOS. 
I recommend you update the most critical ones: BIOS, Chipset, Display Driver, and Network.

 
If that does not work, I recommend you try two things: 

First: Boot to the Windows 10 desktop 
Press Windows key + X 
Click Device Manager 
Expand Batteries 
Right-click Microsoft ACPI-Compliant System. 
Choose Update Driver Software. 
Make sure you are connected to the Internet, then check for updates. 
When that completes, restart the system and then check if you can sleep and wake. 

If you are still having difficulties and the system is under warranty, you may contact me privately. Be sure to include your personal information (name, address, telephone, email) and your computer's service tag number in your message. Thanks.

If there is no warranty, then you could contact our Out of Warranty team to get a quote for a paid service call -

Same problem with my 9560, started occuring this week. Please fix this issue! I've run the Diagnostics available on the F12 menu, it could not detect any errors. I run all the latest update accord to the Dell Update application. This error made some of my Note taking application's files go corrupt so I am now missing important notes from work! Please fix this problem asap!

Yeah, this surprisingly worked. Thanks