Re: What means width too large for virtual size
I'd guess that the reason why the size looks wrong is here:
(WW) NVIDIA(0): No size information available in DFP-0's EDID; cannot compute
(WW) NVIDIA(0): DPI from EDID.
(==) NVIDIA(0): DPI set to (75, 75); computed from built-in default
Have you tried either specifying the dimensions of your TV in your xorg.conf or using the DPI option?
I'm afraid that I don't understand how dpms would impact your results, however I'd like to know whether using a FC4 kernel has any impact on this problem. 2.6.16-rc1 is definitely not a stable kernel.