Thread: Please help : Problems with millenium II and psone lcd

Gauderio,

I also tried a Matrox Mystique and never could succeed. Couldn't get correct sync, no matter what values I tried. If you find powerstrip timings that work, please feel free to share them !

Up to now, here are my results :

S3 Virge GX : no way (picture can be seen on the screen, but never stops moving around and is cut in 4 pieces). maybe a csync circuit would help since the board doesn't do csync.

Matrox millenium II : nothing recognizable, pixel clock won't go below 30, one way ticket to the garbage can.

Radeon 9600Pro : works fine, but picture is still abit dark and some "red artefacts " can be seen. Desktop size is also incorrect (overscan).

Matrox Mystique : image is OK, but it keeps moving vertically and is split in two parts (left part of the image is on the right side of the screen, and right part is on the left side of the screen with a big black area in the middle (frint porch seems to be centered on the screen , if I can say so)

Don't hesitate to continue sharing your experience. We'll finally win over this damn LCD screen

PierreLo

What you got with the Matrox Mystique is what happened to me with an 8Mb Millenium II. The image was split and I could not get the pixel clock to go bellow 30Mz. I was going to by a Mystique from eBay today, but now I am wondering if I should. I've seen people that used and it looks great. So I wonder if its a wiring/resistor issue.

Also, with the TNT Vanta I could not get the image to stay in one place. Every so often the image would slide down. It's really annoying. When you first load windows, the image has a line in the middle of the screen and you have to center it. And later on it just slides down, doesn't stay fixed. Every time i boot it up, I have to center the image. So I think I am almost done with that card.

Well, if you know people who succeeded wit a Mystique, would you please be kind enough to ask and give me their Powerstrip timings ? This sure would help.
THanks

PierreLo

Check this thread
Help with PSONE LCD mod

Its a link I got from MatrixPC. He uses a Mystique and said that his image is clearer because he uses the circuit to convert Hsync and Vsync to Csync (even though his card has Csync). My TNT Vanta works fine, but I can't really read the small fonts and MatrixPC's picture looks better than mine. I'll make the circuit today and let you guys know how it goes. Its pretty cheap, probably under $4 total. I hope it fixes the problem of having the image sliding down every so often.

Last night I build MatrixPC's TTL circuit to convert from h/v sync to c sync. Unless I did something wrong, nothing changed. I might have done something wrong, so I am going to try again with a different pcb just to make sure, but I think regardless of how it goes I'll still probably get a Matrox Mystique that I know works.

Just to make sure, has everybody been successfull with both Matrox G200 and Mystique? Thats the impression I got.

dont know if this will help but I belive that matrox just like ati/nvida/3dFX did back then was sold the chip to diff manafactures wich made diff boards mybe it's only true matrox boards? I know my M II was not a true Matrox it was a stb I belive.

Mage

Mage, I think you are absolutely right. I got myself 3 different used graphic cards, all recognized as Mystique by Windows. One was a Compaq card, the second a "supposedly genuine Matrox mysstique, and the 3rd I can't remember.
Bottomline is that none works for the mod.
Now I've had enough of this mod story, so I think I'll give up and forget about having this psone screen installed. I almost bought another Radeon (Powercolor radeon 7000 to be precise), but finally I decided it wasn't worth it. This project is postponed as far as I am concerned since I obviously am not smart enough to make it work

Anyway, I'll be around for maybe some "extra news" information from you guys.

Good luck

PierreLo

Don't buy the Powercolor Radeon 7000, i doubt that will have csync either...

the R7000 does have csync (Atlest on a OEM TRUE ATI).

the only problem I have now is like Gauderio statied when I load the screen jumps down (does not filp or anything just bumps down some. hope the hand v to c sync that matrixPC made will fix this.


Mage