Brand new projector- has lines across the screen scrolling
Brand new projector - hooked up thru vga terminal from component terminals on receiver...scrolling purple/green lines running entire width of screen and scrolling from bottom to top...not too bad but would like to eliminate them--
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computer should always be connected with 15 pin VGA to DVI-I cable.
Select in menu input 1 analog RGB and adjust output resolution of Dell to 1024 x 768. this should work !
USB is only for mouse control with pj remote
This is definatelly a interference from a power cable. If any of your signal cables in the ceiling is closer that 5cm to one of those , you will get interference.
The Company that did the installation should know this and I would suggest you call them and tell them that they should sort it out. They should either move the cables or insulate them by means of conduit.
I bought mine new... hooked it up and got the same response. I would have torn my hair out but I am bald! Checked everything. Great frustration. Finally, I thought to replace the cable with one I have on my monitor. Worked perfectly! A brand new cable and it was faulty! Contacted the company and they sent out a new one. Even sent a packet to ship my bad one back so they could find out what happened. No connection problems with the new cable.
If you're using the VGA port, you'll see the banding because it's not really showing 720p, it's doing scaling (I'm not sure from what resolutions it's scaling). So, even though you're using VGA at 1280x720, the scaling is still going on and it's showing the banding.