So I got one of these monitors a few months back and I have yet to get the 3D to work on the HDMI output. If I try to use the 3D with the DVI, I have no problem and it works incredibly well once I get all the settings just right for each game.
I have tried with the freeware version of TriDef that came with the moniter. I paid for a full version of TriDef and tried that. I also just now tried to use the version on TriDef's website that is specifically designed for the HP 2311gt. Neither version worked for 3D on the HMDI output.
I tried with 4 different graphics cards and each had the same results every single time. Currently I am using a Radeon HD 7800.
Am I wrong to think that the HP 2311gt is supposed to be able to use it's 3D capabilities with the HDMI output?