Hello Sylvia.
As I previously said: "When i connect projector to HDMI output, Intel HD driver sets 1920x1080 (60p) by default. It's OK!" - I'm not trying set 1920x1080 @ 120 Hz.
"In addition to that, it is important to know that your processor does not come with Intel® InTru™ 3D Technology."
Yes, I know. But stereo player uses "software pageflipping", so don't need use Intel® InTru™ 3D Technology.
Problem is that Intel HD driver always sends real signal with native resolution via HDMI output (in my case it 1920x1080 @ 60 Hz), regardless resolution of windows or driver settings. For example, I'm trying set 1024 x 768 @ 60 Hz in driver settings: Driver changes resolution and auto scales it to fullscreen, but projector reports that real resolution is still 1920x1080 @ 60 Hz.
And the most important thing, that all working fine when i connect projector to VGA output: for example, i can set 1024x768 @ 120 Hz, and Intel HD driver sends real signal with 1024x768 @ 120 Hz ! (projector reports real resolution), so i can properly synchronize my 3d glasses. But i don't want to use VGA output, because image is worse than via HDMI.
My question is still unchanged: How to force Intel HD driver send real signal with 1280 X 800 @ 120 hz (via HDMI)?