XPS 8940, loses connection after sleep mode

Thanks, I'll try that.

I'm on BIOS version 2.12.0, 3/10/2023; SMBIOS 3.2; BIOS Mode UEFI

Nvidia GeForce RTX 3070

I leave computer for 2 hours, come back to black screens that do not react when mouse or keyboard are activated, computer acts dead (no fan or processing noise), eventually have to hold power button more than 5 seconds to finally trigger a reboot..

@ShissKebabu 

Was the 'sleep state' that you couldn't get out off the ONLY problem where you had to use the Power Button?

I'm wondering as your initial post was about this, "XPS 8940 loses frequently connection after a short time in sleep mode." which when asked for more details was the Wireless SSID connection?

Are we talking about 2 different issues here? As a few posts ago you seemed to indicate that the Wireless issue if 'gone'?

I ask as you have an Nvidia card. Almost every 8940 user here with that make video card has experienced 'lock-ups'. That is NOTHING happens on the screen, can't move the mouse, sounds stop, video's stop, and even the black screen that can't be woken up from sleep.

Have you looked in the Event Viewer after you reboot with the power button? Usually you will find a Critical entry for Kernel power, The event 41 kernel power means that there is something happened unexpectedly that blocked Windows from turning off properly and there is a message saying that “The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.” Normal for using the power button, but are there ANY other Events, either Critical or Error showing within that 2 hour window? You might see something like this:

The CRITICAL are ones you should be concerned with for sure. Errors, well, probably 95%+ of them are 'normal'. For instance, in mine, the Bonjour are due to an Apple device (iPad or iPhone) not connected. Stuff like that. However, they should be looked at by clicking on them.

No other issues besides computer not waking up from sleep. As for the loss of connection, as I mentioned before, it has not happened again yet.

@ShissKebabu  - Be sure to look in Device Manager at all devices listed under both USB and Human Interface Devices for a Power Management tab (if they have one) and check the box to "wake PC" and uncheck the box to "allow PC to turn off".  Reboot when done...

Ron, yes I've done that already. Issue has happened again.

@ShissKebabu,

If 'happened again' is you can't get the XPS out of sleep, then it could very well be the Nvidia Card problem.

I found this link a while ago, https://windowsreport.com/nvidia-driver-keeps-crashing-windows-11/ and it has some info on things to try, but that is not what I did, I did "4. Reconfigure settings in Nvidia Control Panel" and although I can't pin that as a fix, I've seemed to have less of the problem over time.

But before that, I suggest you get DDU, https://www.guru3d.com/files-details/display-driver-uninstaller-download.html and run it. It will remove any and all vestiges of the Nvidia driver. I had initial problem with the Dell installed one that came with my 8940. Support even went so far as to replace my video card and motherboard without resolving the problem (brief black screen right after the desktop appeared on booting). DDU did after I got the latest Nvidia driver from the Nvidia Site (or used GeForce Experience). Once you've got rid of the Nvidia driver, re-boot and Windows will use its internal driver, low function, low resolution, but it will enable you to now install the latest Nvidia driver. That might help, but no guarantees, but surely worth a try.

If it DOES not, I suggest you start a NEW Subject with all the h/w and failure details. Continuing here though would have some people who might be able to help with video problems or waking up the PC from sleep to miss this secondary problem you have vs. the subject problem.

There must be some issues in BIOS.