Screen interference all of a sudden?

grandimperial · 04-25-2008, 02:17 PM

Hi Guys,

M2ATX, LILLIPUT Monitor, screen powered off M2

Ive had my car computer running about 9 months now but all of a sudden im experiencing interfernce on my screen after its been on about 10 mins.

This is with the engine off or on.

If i switch off and back on again it has gone when its back on??

Im assuming it must be a cable running next to my vga cable but the only ones i have is the USB extension (runs next to vga cable from boot), would this cause the problem?

The interference can be best described as the screen image shaking rather than lines on the screen.
Any suggestions?
Cheers

Incstlouis · 04-25-2008, 07:30 PM

Are you using a fully shielded VGA cable with ferrite beads? Check This Out

If you think it is the cable, you may want to make sure you are using a micro-coax cable with ferrite bead. This should help shield out any interference.

grandimperial · 04-26-2008, 06:05 PM

Thanks, i dont think mine is any special type of cable, it was just cheap off ebay.
I will try and get one of the extension cables and see if it makes any difference.

Incstlouis · 04-26-2008, 06:16 PM

Are you extending a cable you already have? If that is the case using a High Grade VGA Cable Extension may not work. You may just extend the interference you already have.

If you connection is VGA male/male, you should trying replacing the cable with a High Grade VGA Monitor Cable M/M

numbers · 04-27-2008, 03:47 AM

Interference usually manifests itself as either color shift or bleed, or random lines on the screen. What you describe sounds more like the monitor not wanting to stay synced on the signal. Try moving your refresh rate around. Whatever it's set to right now, just try setting it to something else.

grandimperial · 04-27-2008, 07:59 AM

How can you change the refresh rate? Is it via the onscreen menu?

grandimperial · 05-01-2008, 10:48 AM

I worked out how to change the refresh rate and it made no difference.
Any other suggestions?
I have in the mean time ordered some new premium gold plated vga extender but awaiting delivery.
Do speaker wires and usb extender wires interfere with a VGA signal or is it just power wires?