I have also same question.
I was also facing this issue from more than a year. I have lenovo laptop z51 with AMD Radeon R9M375 GPU. I was never able to run 3d games neither through Tridef nor through native hd3d games like dirt3. In dirt 3 games there is option of stereoscopic but is always disabled.
I have tried tridef from windows 8.1 version, now I have win 10 also. Every time when I launch games through tridef window, the games tries to open but immediately crashes. Whereas games work perfectly well opened directly.
Then I configured Radeon setting to run the game and tridef on intel gpu. To my suprise the tridef was now able to run 3d with side by side mode however, fps was to low.
This clearly indicates that the issue is with AMD Catalyst driver only.
Please help me if you got any success
I have LG 3d TV 49UB850T.