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LG Ultrafine 4K Windows 10 Bootcamp

Has anybody successfully connected a LG 4k ultrafine display to a late 2016 15" MacBook Pro and gotten the display brightness to work at all and the speakers to work correctly in Windows 10 using Bootcamp? I can't control the display brightness at all inside the display settings. I can control the laptops display brightness just fine. When I change the volume it get's too loud very quickly. I'm afraid if I accidentally have the volume too high I will blow out the speakers of the monitor in Windows 10. I have the latest Bootcamp drivers installed (6.1), but that didn't seem to change anything.

Does anybody have the LG Ultrafine 4k display working correctly in Boot Camp on their late 2016 MacBook Pro?

MacBook Pro with Retina display, macOS Sierra (10.12.2), Late 2016 15 MacBook Pro

Posted on Jan 11, 2017 8:49 PM

23 replies

Loner T

Level 9

59,471 points

Jan 12, 2017 7:53 AM in response to tycruickshank

What is the connection type between the Mac and the LG 4K?

Jan 12, 2017 8:17 AM in response to Loner T

I'm using the supplied thunderbolt cable and plugging directly into the Mac. I've also made sure the thunderbolt cable is plugged into the circled connection on the display.

Loner T

Level 9

59,471 points

Jan 12, 2017 1:08 PM in response to tycruickshank

Does the Radeon AMD settings allow you to control brightness/contrast on the LG 4K? Test it when you have access.

Loner T

Level 9

59,471 points

Jan 13, 2017 4:40 AM in response to tycruickshank

Posting these screen has another clue. The HID Ambient Light Sensor drivers is missing. Are the BC6 drivers installed? Are any other devices in a similar state?