Problems with MBP + VGA cable

[excalibur313]

Hi Everyone,
I have a gateway 24" flat screen that I am trying to hook up via VGA to my i5 macbook pro. I have hooked up this computer to projectors before with no problem, but for some reason when I plug it into the monitor it says no signal even when I refresh it in system properties. I thought the cable might be weird, but it works with a windows computer that I have. Does anyone have any other suggestions?
Thanks!

 

[emiljan]

R u using a mini-displayport to vga adapter and a standard vga cable?

If so check you display tab under system prefrences and make sure the projector is detected.

 

[excalibur313]

Yes, I am using a display port to VGA adapter and this cable:

http://www.newegg.com/Product/Produ...787002&cm_re=vga_cable-_-12-787-002-_-Product

When I go to detect displays I see the external monitor change resolutions but it just remains black and I don't see any additional displays in preferences.

 

[emiljan]

Check the resolution of the projector because sounds like the projector can't support the resolution you have set for the external monitor in your display tab.

 

[excalibur313]

So in this case I am hooking up to a 24" monitor. I have connected to projectors before without problem. I actually tried connecting to another 24" samsung monitor via VGA and I have the same issue whereas this monitor one works perfectly with this macbook pro over DVI.