I have the same issue. I have Intel i3 with HD 4600 integrated graphics as the only video card, and a Samsung 50" TV. As other people described - DX 9 works normally, DX 11 forces 1080i when running full screen.
Intel(R) HD Graphics 4600
Report Date: Thursday, June 26, 2014
Report Time [hh:mm:ss]: 10:12:39 PM
Driver Version: 10.18.10.3621
Operating System: Windows* 8.1 (6.3.9600)
Default Language: English (Canada)
Installed DirectX* Version: 11.0
Supported DirectX* Version: 11.0
Shader Version: 5.0
OpenGL* Version: 4.2
OpenCL* Version: 1.2
Physical Memory: 8064 MB
Processor: Intel(R) Core(TM) i3-4330 CPU @ 3.50GHz
Processor Speed: 3500 MHz
Vendor ID: 8086
Device ID: 0412
Device Revision: 06
* Processor Graphics Information *
Processor Graphics in Use: Intel(R) HD Graphics 4600
Video BIOS: 2170.0
Current Resolution: 1920 x 1080
* Devices connected to the Graphics Accelerator *
Active Displays: 1
* Digital Television *
Display Type: Digital
Serial Number: SAM08fe
DDC2 Protocol: Supported
Gamma: 2.2
Connector Type: HDMI
Device Type: Digital Television
Maximum Image Size
Horizontal Size: 6.3 inches
Vertical Size: 3.54 inches
Supported Modes
640 x 480 (60p Hz)
640 x 480 (67p Hz)
640 x 480 (72p Hz)
640 x 480 (75p Hz)
720 x 400 (70p Hz)
720 x 480 (60p Hz)
720 x 480 (60i Hz)
800 x 600 (75p Hz)
800 x 600 (60p Hz)
800 x 600 (72p Hz)
832 x 624 (75p Hz)
1024 x 768 (60p Hz)
1024 x 768 (70p Hz)
1024 x 768 (75p Hz)
1152 x 870 (75p Hz)
1152 x 864 (75p Hz)
1280 x 720 (60p Hz)
1280 x 800 (60p Hz)
1280 x 1024 (60p Hz)
1280 x 1024 (75p Hz)
1366 x 768 (60p Hz)
1440 x 900 (60p Hz)
1600 x 900 (60p Hz)
1680 x 1050 (60p Hz)
1920 x 1080 (60p Hz)
1920 x 1080 (30p Hz)
1920 x 1080 (60i Hz)
1920 x 1080 (24p Hz)
Raw EDID:
00 FF FF FF FF FF FF 00 4C 2D FE 08 00 00 00 00
29 15 01 03 80 10 09 78 0A EE 91 A3 54 4C 99 26
0F 50 54 BD EF 80 71 4F 81 C0 81 00 81 80 95 00
A9 C0 B3 00 01 01 02 3A 80 18 71 38 2D 40 58 2C
45 00 A0 5A 00 00 00 1E 66 21 56 AA 51 00 1E 30
46 8F 33 00 A0 5A 00 00 00 1E 00 00 00 FD 00 18
4B 0F 51 17 00 0A 20 20 20 20 20 20 00 00 00 FC
00 53 41 4D 53 55 4E 47 0A 20 20 20 20 20 01 1D
02 03 1F F1 47 90 04 05 03 20 22 07 23 09 07 07
83 01 00 00 E2 00 0F 67 03 0C 00 20 00 B8 2D 01
1D 80 18 71 1C 16 20 58 2C 25 00 A0 5A 00 00 00
9E 01 1D 00 72 51 D0 1E 20 6E 28 55 00 A0 5A 00
00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 A0
5A 00 00 00 18 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 C6
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