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 Post subject: Problem with at91rm9200dk display ?
PostPosted: Tue Feb 01, 2005 6:14 am 
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Joined: Sat Jan 22, 2005 4:05 pm
Posts: 19
Location: india
I am using at91rm9200dk.I can run the demo launcher.sh with my pc monitor.
But,when i am using flatmonitor (Samsung syncmaster153V),i am not able get display.The monitor documents says that ,it can support vesa standard.

is the board support package not support vesa?what is the pixel range setted in BSP?

what should i do for getting vesa standard?
changes in hardware or software?

please anybody guide in this matter

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 Post subject:
PostPosted: Tue Feb 01, 2005 4:23 pm 
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Joined: Mon Nov 08, 2004 4:39 pm
Posts: 120
Location: Raleigh, NC
I understand there are two display problems. One is on the DK and not the EK, and that is noise creeping into the display causing lines/ghosting.

The second problem is with some displays (especially LCDs/higher end displays) not syncing with the graphic chip. I do not know that there _is_ an easy solution without checking to see if the lines are even being driven and whether they are in the timing spec for your display.

Sorry for not having more for you.


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 Post subject: may be it?
PostPosted: Wed Feb 02, 2005 10:24 am 
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Joined: Sat Jan 22, 2005 4:05 pm
Posts: 19
Location: india
thankyou tomcroban

I have found that timing signal used by atmel is not reaching my requirement. Atmel using 45khz 187hz.but it is non vesa standard.

for getting vesa standard , may be ....i need to change epson device driver in the kernel and i need to programme clkgenertor by accessing i2c.

am i correct?

now... i want to know, how to do these things?

can anybody give clear explanation ?

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