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XPS 15 9550 Sleep/Hibernate Issues - POTENTIAL [SOLVED]

Hey everybody, this is just a post to offer potential fixes to owners of the Dell XPS 15 9550 regarding its sleep/hibernate issues.

 

The issue is where if you set the device to go to sleep after a period of time (in Windows), the laptop will wake itself up almost immediately after, even after closing the lid.

 

This is an annoyance, as it can cause the device to use up its battery while you've set it aside. In my case, I had an alarming moment where I noticed that my laptop bag was rather hot, and then opened it to realize that my laptop was running despite me putting it to sleep, and it had heated up to a very high temperature due to being suffocated in the bag.

 

So, my tentative solution that seems to work so far is: toggling certain BIOS settings on and off. I know it sounds downright idiotic, but I swear it seemed to work from what I've tested so far.

 

Specifically, I either turned settings off and/or selected a different option for a setting, applied it, then set it back and applied it. The settings I toggled back and forth were:

 

- System Configuration > Touchscreen (Toggled Off, then back On)

- Power Management > Auto On Time (Switched it to a different option, then back to Disabled)

- Power Management > Wake on Dell USB-C Docks (Toggled Off, then On)

 

Maybe it was an issue of BIOS settings not being represented and set correctly, but this seemed to do it for me. Timed Display, Sleep and Hibernate settings seem to be working properly, the laptop is not waking up abruptly, and Lid Close seems to apply properly for both Hibernate and Sleep options.

 

Oh, and here's my exact config for reference:

XPS 15 9550

- CPU: Intel Core i7-6700HQ

- Storage: 256GB NVMe Drive (Toshiba)

- RAM: 8GB DDR4 2133MHz

- Screen: 1080p Non-Touch screen

- GPU: GTX 960m

 

Hope this helps anyone having the issue!

 

tl;dr: Toggle BIOS Settings related to power or waking stuff up back-and-forth and you hopefully should fix the sleep issue

CodeMaster (Name Due for Update):

CPU: FX-8320 @ 4.6GHz | Motherboard: ASUS Sabertooth 990FX R2.0 | RAM: 24GBs Crucial DDR3-1600

GPU: Gigabyte GTX 970 Windforce OC | Case: Fractal Design Define S | PSU: Corsair AX860i

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I have not seen this issue from my system (i7 6700HQ, 16gb ram, 512gb SSD, 1080p display) or any of the other similar systems around my campus.

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  • 4 months later...
  • 2 years later...

Tried to register, realised I had an old account and needed to reset my password, reset my password and then accepted the new(ish?) terms of use...

Just to say thanks! I experienced this issue for a whole workday and it was driving me nuts!

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