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powerstrip and ATI 9700 pro???

261 Views 2 Replies 3 Participants Last post by eggz, Apr 12, 2003

jmschnur

Discussion Starter · Apr 11, 2003

I am having problems creating a 1024x576 resolution for 16X9 viewing with my ATI 9700 Pro, HT1000, and powerstrip in XP pro directx 9.0a.

Powerstrip 3.30 works fine to give me a 59.93 freq for Holo3d.

Could some one go over the correct way to get the new resolution. Every time I do this the reboot gives me a blank screen and the only out has been for me to rescue with a recent disk image.

I want to use the 1024x576 with the HT1000 in the 16:9 display mode.

I am using the Sony GDM 900 driver as suggested previously in other threads

I do have 2 monitors attached-one to RGB (a small LCD 1024x768) and the HT1000 (1024x768 native) is by DVI. I have the LCD turned off when I do the reboot that lead to the problems. LCD has no effect-also blank.

Thanks!

Joel

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Morbius

· #2 · Apr 11, 2003

Quote:

Originally posted by jmschnur

Could some one go over the correct way to get the new resolution. Every time I do this the reboot gives me a blank screen and the only out has been for me to rescue with a recent disk image.

I want to use the 1024x576 with the HT1000 in the 16:9 display mode.

Joel,

If you are defining a new resolution from scratch - 1024x576, then you have to do all the math.

Since you want a 60 Hz vertical refresh rate - you have to ensure that the you pad out your 1024x576 resolution with

enough lines in the front/back porches, so that the product of the total number of pixels [ including the porches ]

and the refresh rate; is equal to one of the available pixel clocks [ RAMDAC ] on your video card.

The process is a bit complicated for a forum posting.

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eggz

· #3 · Apr 12, 2003

You can't use an LCD monitor to create custom resolutions (they only work at fixed settings). You'll need to use a CRT to tweak a custom resolution, if it won't display on your projector.

I take it you want to get rid of the black bars during 16:9 playback. I'm not a great projector expert, but can't you accomplish the same objective by changing the aspect ratio in your DVD player? Either way you are going to get distortion by creating rectangular "pixels." Also note that for DVD playback, 16:9 is only a partial solution -- my projector is native 16:9, but since every movie I watch is 2.35:1, I get black top and bottom bars as well.

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