I have the 4K screen 32GB RAM model of the 9560. Every now and then the screen will momentarily flash black (for maybe 0.25 - 0.5 seconds) and then go back to normal. Sometimes it'll flicker slightly before coming back - also there is sometimes some graphic black and white stripes/corruption (kind of looks like a barcode effect) at the same time.

I've updated to the newer Intel Graphics drivers (which fixed the Chrome lag for me - i.e. version 4590) but I still get the issue. I have also tried disabling Chrome from running in the background and using Opera instead. But the issue still remains. Some Googling revealed that others had the same issue with the 9550 and a setting on the Dell Wireless drivers fixed it. I wouldn't be all that surprised if the Killer drivers were causing an issue - but unfortunately it does not have the same setting as the Dell Wireless drivers. I have also seen mention of disabling Hyper-v. Although I have Windows 10 Home (no Hyper-v), I've tried disabling the two Virtualisation settings in the BIOS but I'm still suffering from the issue.

I should add that it does not appear to be a mechanical issue. Moving the screen or tiling the laptop does not cause/replicate the issue. Instead, it'll happen randomly when the laptop is perfectly still.

It can go hours/days without the issue appearing and then suddenly I'll have two or three instances of it within an hour.

If anybody else has encountered the same issue and knows a fix then I'd be very grateful.

EDIT:

Having done some research, I see that this same issue has been reported numerous times in respect of the 4k panel on the 9560 and the 9360. See here:

- Anyone getting similar screen flickering from 9560? https://www.reddit.com/r/Dell/comments/5xvuv0/anyone_getting_similar_screen_flickering_from_9560/
- XPS 9550 + 4K panel screen flicker thread: http://forum.notebookreview.com/threads/xps-9550-4k-panel-screen-flicker-thread.795285/

The latter link also includes numerous reports of the same issue in respect of the 9550 (278 replies to that thread and counting). A user on Reddit posted a video on Youtube a couple of days ago showing the same issue I (and others) are suffering: https://www.youtube.com/watch?time_continue=14&v=1vyBADhmgq4

Given that this issue has been present since the 9550, it would seem this is something that Dell has overlooked. The laptop isn't really fit for purpose with the screen flickering black. I'd be grateful if someone from Dell would confirm whether a fix for this issue will be released (and the timeframe). If not, I'd be grateful if you could advise how I can proceed with arranging for a return and refund.