I have the same problems after updating to BIOS 1.2.21 - a lot of flickering when sleep / resume and dock / undock external monitor. Sometimes BSOD with VIDEO_TDR_FAILURE igdkmd64.sys.
I have all Dell driver and Windows updates. Did not happen before the latest BIOS.
I also have Dell 220.127.116.11 which shows 3 updates available: Intel Graphics 530, Dell Dock, Dell Update SupportAssist though I have checked and I have the latest Intel Graphics 530 from Dell and the Dell online driver check tool says everything is up to date!
I have exactly the same problem so I have just called to the Czech Pro Support and they are going to replace whole main board for me. I will let you know if the problem persists.
I got the same issue :-(. BSOD with stopcode VIDEO_TDR_FAILURE on igdkmd64.sys. Upgrade/downgrade BISO version 19 and 21 makes no difference.
Need and answer to this issue from Dell. Newest drivers and bios causes the issue. For those of using this computer for work presentations it's very embarrassing to have it crash. The 4K is a great concept and very clear...but so many problems with video including Windows 10 formatting dialog boxes so small you can't interract.
Thanks for posting back about the error. Below is a youtube video on how to resolve this error.
I have absolutely the same issue.
Just when the Windows boots up the screen goes black several time then I get a blue screen.
So computer is completely unusable.
Updated BIOS, updated Intel HD drivers from Dell Support site.
But I cannot update the GTX960m card driver from Dell Support, installation fails
And I cannot download that driver version from nVidia official site.
I hope Dell would fix this ASAP, cause this is just unaccaptable fail.
I guess the last IntelHD driver which I updated via DellUpdate app was completely broken and killed the system.
I rolled back to some old Intel Driver while in Windows Safe Mode, and now at least I could launch browser without immediate BSOD.
Dell, Please, never roll out not tested drivers this way. This just killed half of my work day, this was terrible, because lots of men and inportant work depends on me.
I am really stuck with BSODs..Nothing is working. downgraded BIOS. Rolled back Drivers. Tried resetting windows with keep my files option. No use.. BSODs continue. Dell customer care tried remote diagnostics... Failed. Now working on clean install... Fingers crossed.
Dell really screwed up this time. Even if I'll send it to depot for repair it may take 7 to 12 days as I am told.
Being a student, I really can't manage without a laptop for a week when your finals are just weeks away.
Same problem here after updating video driver and BIOS.
Dell support: when about 10-20 people report sudden identical problem after a specific driver update, do you REEAAALLLLYY think it's best to ignore the obvious problem and post an outdated youtube video instead of filing an internal bug report? You are just delaying a solution and reducing the speed of Dell processes to fix this problem... This isn't one guy posting a badly defined problem, it's lots of people posting the identical problem. It really shouldn't be so hard
P.S.: Problem is better described here: http://forum.notebookreview.com/threads/xps-9550-latest-intel-graphics-drivers-are-bad.803339/
It's actually the graphics driver, not the BIOS.
SOLUTION: Roll back from faulty version 18.104.22.16890 to last working version 22.214.171.12431. You can download the older, working driver here: http://www.dell.com/support/home/de/de/dedhs1/Drivers/DriversDetails?driverId=5MVK2
I did the graphics driver roll back and the problem is gone, i hope that DELL fix this problem ASAP, we are many affected users
Thanks matthias_hoeller for the temporary fix