MrHicks said:
but why did "automatic" also "check" 1080i and 1080p boxes?
tv can only handle 720p
am i gimping the screen like this or doesnt it matter?
The PS3 auto-detects what resolutions your TV will accept. So if something is output at 1080p, your TV can accept it, it will just downsample it to 720p (or whatever the panel's real native res is). Unless your TV is giving incorrect info to the PS3.
It shouldn't be a problem anyway, since ever game (other than maybe two?) will automatically output at their native res rather than forcing upscaling to 1080p. In other words, most games will output at 720p.
The one question is whether native 1080p games (the few that exist) will automatically output at 1080p? For example, if you have Wipeout HD ... check to see if it automatically runs at 1080p. If so, test it against 720p and see if you notice an lag differences. Generally downsampling is quite quick, but in a 60fps game, you could potentially notice it. If so, I'd manually uncheck 1080p.
I have a 1080p TV, so I don't know how PS3 handles res selection for a 720p TV that accepts higher res. Some devices will ask for the 'recommended resolution' of a TV via HDMI, but I don't know if PS3 does it (and also, sometimes the answer is incorrect by the TV manufacturer). Regardless, it's possible it will just do 720p for everything anyway.
Another thing to test is how the XMB and 1080p movies look at the different resolutions, and see what you like.