I am astounded by the lack of resources (as reported by google) available regarding using HDTVs with xfree86. The only thing I found was a post long ago to this list. The only person who answered said "this is a question for nvidia, regarding their tv-out support".
To cut off similar responses: I'm talking about treating the hdtv as a fixed frequency monitor, taking its input from a standard hd15 monitor cable (or in my case, potentially via an hd15->yuv converter from audio authority). Currently, with my TNT, the default 60HzV 31.5khzH 21.5MHzDC modeline for 640x480 provides reasonable output, except that 10-15% of the pixels of the top and left of screen are not visible (i.e. off screen). Now, reading the handy video mode timings FAQ, it suggests that in such a case you move to a higher dot clock. Personally I don't want to endanger my (brothers) hdtv. Playing around with a multisync monitor, just jacking up the dotclock number in the modeline also ends up increasing the vertrefresh, which I'm _guessing_ could be a bad thing on the hdtv, which I'm _guessing_ is probably only going to be happy at 60hz. Anyway, clearly if I spent even more time than I have researching this issue, and didn't fear destroying a few hdtv's, I could probably run across the right modeline. But what perplexes me is that I can't seem to find any resources on the issue. Its like one of the first things that jumps out in my mind that I would do if I bought an hdtv. I can't believe there isn't more stuff/chatter on the net regarding this. For instance, its a 16/9 1080i hdtv. Clearly this implies(?) that the optimal progressive 60hz resolution would be 960x540(with square pixels). But personally I'd be satisfied at the moment with 640x480@60p or 854x480@60p, or roundabouts there. Just whatever the good dvd players output??? Anybody out there doing this? I can't be the only one? Anybody want to enlighten me as to how I'm wrong in my going assumption that 'hdtv support' is completely a software/modeline issue? (unless you care about the convenience of yuv/y-pb-pr cables coming straight out of the video card). Thanks for any help. I'd like to have a good idea what I'm doing, and what the risks to the TV are, before I do anything. Also, the modeline generator web pages out there don't seem to be doing much for me. -dmc _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
