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Megatouch Calibration

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jaeger:
Just upgraded  my megatouch aurora. In calibrating the screen, when the first screen comes up at 600 resolution I can calibrate it with no problem the the second screen comes up 800 resolution and the screen is too large for the monitor and can't be calibrated. If I press a game that need the higher resolution  the screen goes blank. All other games play fine but I can't calibrate the higher resolution and i can't figure out how to make it smaller to do so.
Thank,
Jaeger

grantspain:
long time since i worked on megatouch but i do remember having to press auto on the lcd control pcb for each resolution before calibrating each res

lilshawn:
ive seen this and had to call support.

it's a bad ram stick.

pop in a new one. (pull out the old one and throw it away. don't try and hotdog it and add another stick to it, it'll start crashing on you)

512mb is minimum for 2012+ software now anyways

mahkeymike:

--- Quote from: lilshawn on January 08, 2013, 07:03:32 pm ---ive seen this and had to call support.

it's a bad ram stick.

pop in a new one. (pull out the old one and throw it away. don't try and hotdog it and add another stick to it, it'll start crashing on you)

512mb is minimum for 2012+ software now anyways

--- End quote ---

Thats odd, never seen that before. Not doubting you though. Ive seen this when the display controller was going bad. Like bad cap or graphic chip overheating. Weird one was a horizontal white line across the screen. Thought it was the lcd, but just needed to add a low profile heatsink with some artic silver adhesive epoxy. worked like a charm ever since.

lilshawn:
the video is on-board, thus, it shares a portion of the system memory for use with video. the sticks they used are about as cheap as they get. (likely Chinese rejects being resold)  the system normally runs 640x480. it doesn't use much of the RAM.

when you change resolutions, 800x600 and up, you use more RAM and it gets into the sketchy area. sometimes you can get it to work, other times it does the off the screen thing.

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