What happens if you try connecting it with component cables, or a different HDMI cable?
Also, you might try editing the name of the input from "----" to "GAME" to see if that helps.
I'm the proud owner of a new Samsung LN40C540 TV, and I just have a quick question for all of the Xbox 360 users out there:
Under my input list, all of my inputs are listed and available, even while in standby, with the exception of my Xbox 360 which is hooked up via HDMI.
My DCX3400 and PS3 both show up fine, but the Xbox 360 is greyed out unless I have it powered on. Now, I know that the Samsung has a detection feature and will grey them out unless plugged in, but I would think that it would still pick up that the Xbox is plugged in if it picks up my set top and PS3. I've tried power-cycling with no luck. Is this normal activity for a Samsung TV with the Xbox 360?
Thanks for any help!