Just finished bringing up my NUC7i5BNH with a clean install of Windows 10.
When the generic Windows driver was in charge before I installed the Intel Graphics driver, I had the native 2560 x 1440 displayed on my monitor over the HDMI cable. As soon as I installed the iGFX driver (GFX_WIN10_64_15.46.2.1.4729) the display dropped to 1920 x 1080 and I cannot for the life of me find a way to return to the display's native resolution.
I tried a custom setting in the Intel Graphics Setting application and it says that the requested setting is outside the bandwidth limitations for the device (which it shouldn't be).
Under the "Options and Support" section of the Intel Graphics Setting application, the application does see that 2560 x 1440 @ 60p Hz is a supported monitor mode. The monitor is from Monoprice and it's a 27" display.
The Intel Driver Update Utility doesn't register a version number for the graphics driver and reports it as "Unknown".
I don't know if it's related, but the system also doesn't recognize the audio capabilities of the monitor either.
More information from the Iris Graphics Control Panel:
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Intel(R) Iris(TM) Plus Graphics 640
Report Date: Saturday, August 26, 2017
Report Time [hh:mm:ss]: 1:21:03 AM
Driver Version: 22.20.16.4729
Operating System: Windows* 10 Home (10.0.15063)
Physical Memory: 32659 MB
Vendor ID: 8086
Device ID: 5926
Device Revision: 06
Graphics Output Protocol (GOP) Version: 9.0.1066
Current Resolution: 1920 x 1080
Processor: Intel(R) Core(TM) i5-7260U CPU @ 2.20GHz
Processor Speed: 2208 MHz
Processor Graphics in Use: Intel(R) Iris(TM) Plus Graphics 640
Shader Version: 5.1
OpenGL* Version: 4.5
OpenCL* Version: 2.1
Vulkan* Version: 1.0.38
* Microsoft DirectX* *
Runtime Version: 12.0
Hardware-Supported Version: 12.0
* Devices connected to the Graphics Accelerator *
Active Displays: 1
* Digital Display *
Display Type: Digital
Serial Number: YSP12310001
DDC2 Protocol: Supported
Gamma: 2.2
Connector Type: DisplayPort
Device Type: Digital Display
Maximum Image Size
Horizontal Size: 23.62 inches
Vertical Size: 13.39 inches
Supported Modes
640 x 480 (60p Hz)
640 x 480 (75p Hz)
720 x 400 (70p Hz)
720 x 480 (60i Hz)
720 x 480 (60p Hz)
720 x 576 (50p Hz)
720 x 576 (50i Hz)
800 x 600 (60p Hz)
800 x 600 (72p Hz)
800 x 600 (75p Hz)
1024 x 768 (60p Hz)
1024 x 768 (75p Hz)
1152 x 864 (75p Hz)
1280 x 720 (50p Hz)
1280 x 720 (60p Hz)
1280 x 1024 (60p Hz)
1280 x 1024 (75p Hz)
1440 x 900 (60p Hz)
1680 x 1050 (60p Hz)
1920 x 1080 (60p Hz)
1920 x 1080 (60i Hz)
1920 x 1080 (50i Hz)
1920 x 1080 (50p Hz)
2560 x 1440 (60p Hz)
Power Management Support
Standby Mode: Supported
Suspend Mode: Supported
Active Off Mode: Supported
Raw EDID:
00 FF FF FF FF FF FF 00 66 70 60 27 00 00 00 00
0F 17 01 04 80 3C 22 78 FE EE 95 A3 54 4C 99 26
0F 50 54 A5 CB 00 71 4F 81 C0 81 80 95 00 B3 00
D1 C0 01 01 01 01 56 5E 00 A0 A0 A0 29 50 30 20
35 00 55 50 21 00 00 1A 00 00 00 FF 00 59 53 50
31 32 33 31 30 30 30 31 0A 20 00 00 00 FD 00 17
4C 0F 63 19 00 0A 20 20 20 20 20 20 00 00 00 FC
00 32 37 69 6E 63 68 20 48 44 4D 49 0A 20 01 5B
02 03 1F F1 4C 01 02 03 04 05 07 90 12 13 14 16
1F 23 09 07 07 83 01 00 00 65 03 0C 00 10 00 02
3A 80 18 71 38 2D 40 58 2C 45 00 FE 1F 11 00 00
1E 01 1D 80 18 71 1C 16 20 58 2C 25 00 FE 1F 11
00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55 00 FE
1F 11 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96
00 FE 1F 11 00 00 18 01 1D 00 BC 52 D0 1E 20 B8
28 55 40 E8 12 11 00 00 1E 00 00 00 00 00 00 07
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