LG Ultrafine 5K incompatible with Windows 10 Creators Update 1703

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Level 1

8 points

LG Ultrafine 5K incompatible with Windows 10 Creators Update 1703

I run a MBP 2017 13 inch with an LG Ultrafine 5K. I use both macOS and Windows on Bootcamp. The monitor was working perfecting on Windows Anniversary Update 1607, but when I updated to Creators Update 1703 it broke in a very annoying way. Now it randomly goes black for 3 seconds and comes back again every now and then (maybe once every 2 minutes.

I have tried the following:

Replaced the TB3 cable
Plugged in the normal power charging cable in addition to the monitor cable (even though I don't need to)
Tried the Intel graphics drivers that come with Bootcamp (21.20.16.4664) and the two available updates from Intel (21.20.16.4678 and 21.20.16.4771)
Updated the LG Ultrafine 5K firmware using the app for macOS
Returned the monitor to Apple and gotta a completely new one (same issue still)
Downgraded to Anniversary Update (fixes the problem)

I like the Creators Update because it fixes a lot of the issue with Windows DPI scaling which is useful with a 5K monitor.

The monitor works fine on macOS.

I'm about 120% confident that the monitor just isn't compatible with the Creators Update. Any tips for how to get Apple, LG and/or Microsoft to sort this out?

Writing this post involved about 4 blackouts.

Cheers.

null-OTHER, Windows 10, LG Ultrafine 5K

Posted on Sep 19, 2017 6:07 AM

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Answer 1

Loner T

Level 9

59,536 points

Sep 20, 2017 3:35 AM in response to Jared-AUS

There are known issues with Intel GPU drivers and Creators Update. I suggest going back to Anniversary Update.

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Answer 2

Jared-AUS Author

Level 1

8 points

Sep 25, 2017 3:11 PM in response to Loner T

It's interesting that this affects non-Intel GPUs as well. That would suggest the fault is being caused by an incompatibility between the Creators update and the LG monitor and/or MacBook Pro. The latest windows update may have changed the contract between the drivers and the OS, so the hardware vendors potentially need to update their drivers to reflect that change.

Unfortunately, we can probably not expect any support from LG, given their abysmal response to my enquiry:

"Thank you for contacting LG Customer Support. It is unfortunate to hear that you are having issues with your 5k monitor. We apologise for the inconvenience this may have caused you.

Given that you already tried two monitors, yet the issue is still happening, then this only means that there is incompatibility between the monitor and Windows OS.

Please be advised that this product is solely released by Apple as it is dedicated for MAC OS. It may be working with Windows OS, however there will be incompatibility issues with some features."

I also spoke to Apple Care who advised that as long as Windows boots, they have fulfilled their responsibility.

Contacting Microsoft yielded a more positive, albeit generic, response that they will pass it on to their developers. Let's hope that Microsoft are able to fix the problem. Apparently Apple and LG have absolved themselves of responsibility for this issue.

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Answer 3

Loner T

Level 9

59,536 points

Sep 19, 2017 7:49 AM in response to Jared-AUS

Please check Windows Event logs for any GPU driver restarts.

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Answer 4

Loner T

Level 9

59,536 points

Sep 25, 2017 2:29 PM in response to swmtnbiker

Did you issue(s) start after the update to Creators Update? Creators Update runs a SysPrep and then updates, which means drivers are removed and some may not re-installed correctly. Can you check ethernet Device Manager and check which Display Adapter(s) you see?

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Answer 5

Sep 25, 2017 2:10 PM in response to Jared-AUS

Of course I have a different GPU. That's why I posted. 😉 The issue apparently isn't limited to Intel drivers, if they are indeed causing the problem. The Radeon 560 is the only GPU supported under Windows 10 with this MacBook configuration. Both the ATI and the Intel GPUs are available to the OS under macOS.

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Answer 6

Jared-AUS Author

Level 1

8 points

Sep 20, 2017 2:34 AM in response to Loner T

The system event logs show no GPU driver restarts. I checked immediately after one of the blackouts and there were no new events.

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Answer 7

Loner T

Level 9

59,536 points

Sep 25, 2017 1:49 PM in response to swmtnbiker

You have a different GPU. Can you check if the Radeon 560 is available in the Device Manager?

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Answer 8

Sep 25, 2017 2:36 PM in response to Loner T

As I said, the only GPU available to Windows 10 under Bootcamp on this machine is the Radeon Pro 560. Reinstalling the drivers, which is one of the first things I tried, had no impact on the problem.

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Answer 9

Loner T

Level 9

59,536 points

Sep 25, 2017 4:10 PM in response to Jared-AUS

The BC drivers for the GPU should have been verified by Apple/AMD. Can you also check with the AMD Tech Support?

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Answer 10

Jared-AUS Author

Level 1

8 points

Sep 26, 2017 7:12 AM in response to Loner T

My model of MBP doesn't have an AMD GPU, only an Intel one. I guess I can check with Intel tech support.

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Answer 11

Loner T

Level 9

59,536 points

Sep 26, 2017 9:16 AM in response to Jared-AUS

What is the year of your MBP?

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Answer 12

Sep 25, 2017 1:19 PM in response to Loner T

I have the same issue with a 15" MacBook Pro using the ATI Radeon Pro 560 GPU, so if the problem is inherent to the Creators Update it affects this configuration as well. I have yet to find a solution.

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Answer 13

Loner T

Level 9

59,536 points

Sep 25, 2017 2:41 PM in response to swmtnbiker

If you can see the AMD GPU, it is a good sign. If the BC drivers were correctly installed, can you verify the current running version is the same as the one provided by the BC Drivers package? Bootcamp.xml should have the BC Drivers version specific to the AMD GPU.

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