The big thing with 3D is that it's not really the AMD software, so we don't have a way to sneak in a monitor per se.
With 3D, it's all based on the whole system configuration. You've got TriDef complaining that you don't have a 3D monitor, which is why the 3D signal isn't being sent to the monitor.
The Radeon GPU will just end up generating a 3D signal, via TriDef, and send that out through HDMI/DisplayPort. We did certification for certain hardware because we tested them and they worked without an issue. On your BenQ, they support it through HDMI and say to use any supported glasses, but all of the glasses that they recommend are nVidia. With nVidia glasses (3D Vision/Vision2), they only work with nVidia GPUs.
It's a pain for our users who want 3D glasses from BenQ, but using a Radeon will just result in the nVidia glasses failing (since they need a GeForce), with the monitor saying "I don't see an nVidia, so I'm not 3D", which gives TriDef that "No 3D monitor detected" error.
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