On my Dell XPS 15 9550 (i7-6700HQ, 4K screen, 512 SSD, Windows 10 Home) I have to have the Dell Wireless 1830 802.11ac device disabled in Device Manager because when it its enabled, it causes my screen to flicker, reset, or never come back, forcing me to hard shut off the machine.
Latest drivers all around, latest EFI/BIOS, and latest Windows Updates.
I know it's the wireless card because everything is fine when I have it disabled (no hiccups from either Intel HD Graphics 530 nor Nvidia GeForce GTX 960M). I've been using a USB WiFi "nubbin" in the meantime.
Any details I've left out I'd be happy to include upon request. Thanks!
I just got off a long chat with dell. I just received my unit yesterday and the screen frequently turns off and on while in use. Like you I also thought it was driver related. Apparently this is a known issue and they have a hardware fix so you will have to contact them and send your computer in. I opted for an exchange unit so I can stay within my return period. Hopefully this newer unit will have the fix.
I just got my XPS 13(I5-6th Gen-Non Touch) and I am also having sudden screen flickering and black screen. I did all as per various forums,but it seems it is still coming. I will try to disable Wireless driver and check. Such a gr8 laptop being ruined by a silly issue
I am having the exact same issue. Uninstalling the wifi driver fixes it. The moment I install the wifi driver I get the screen flickering/reset/never come back as described.
I bought the Intel 8260 wlan card for like $30 off amazon and just swapped out the garbage dell/broadcom 3x3 card that it came with. I haven't had any problems since. I would actually recommend that you simply go and buy the intel wlan and swap it yourself, it only takes a minute (just make sure to download the drivers first).