I don't believe that you can, but I'm not positive. I have a Dell U3011, but I don't have an HDMI cable handy at the moment (DisplayPort and DVI definitely work at full res though). If I can find an HDMI cable tomorrow, I'll see if it works, although if it doesn't, I don't know whether it will be because of the monitor or because of my source (my laptop). You'd also need to have a receiver capable of handling 2560x1600 resolution.
So basically if I wanted amazing surround sound with this nice monitor. I would have to use DVI from the video card to the monitor and then install a PCI-E soundcard to run to my surround sound system?
I was wondering if with the Radeon 6970 if Im connected to the monitor through DVI, and then on the same card I ran a HDMI cable to the reciever whether or not it would output sound.
Well, I tried it out, and at least with my equipment (and as I said, it may well be limited by my laptop), the highest resolution I can get with HDMI is 1920x1200.
cjl>"...I don't know whether it will be because of the monitor or because of my source (my laptop). ..."
I believe it was the U3011 HDMI port limiting to 1920x1200.
Could you try laptop's HDMI output>HDMI to dual channel DVI adapter>U3011 DVI-D input.
I bet you will then get 2560x1600, proving it was the Dell U3011's HDMI that limited the resolution.
Where did anyone read that Dell' HDMI is 1.3. Mayb it is 1.2?
This experiment may be fruitless, because there may be no such animal as a HDMI to dual channel (24 pin) DVI-D adapter? Even if the HDMI to DVI-D adapter had 24 physical pins on its DVI-D connector, I am not sure that one can passively drive all 24 pins from a HDMI connetion? Anyone know?