Connecting to my monitor

I have a new MacBook Pro replacing my MacBook from three years ago. Previously, I have successfully used a VIZIO monitor and bought a new cable to connect to my new laptop. The connection works, the background lights up when I turn the computer on and the light goes off when I turn my computer off but the monitor is not reading anything on the computer itself. It is just a colorful screen. Is there something I need to do so it will "read". THX.

Thanks for your quick response. I bought the new port that I have plugged into my MacBookPro. And it it's connected (I think) because it brings up the colorful screen. It just isn't "reading" the computer. The screen remains blank. Weird, huh?

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I have a HP Pavilion dv4t-4200 CTO Entertainment Notebook PC model # A1M02AV and it has a VGA port, one that looks like a phone/broadband cable port, and one that looks like a USB port but indented on either side at the bottom. Can I even connect an external monitor? How do I find out if I have more than 1 video card? Besides the usual USB/headphone ports, I don't have any other ports. It says my drivers are up to date...but I don't even know what I should be looking for. Do I need to install something or buy some sort of adapter?
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I tried detecting it via my display settings, but I accidentally changed some dispaly setting so that the home desktop only shows on monitor 1, but unselected my actual notebook display or something or changed it to be monitor 2 (even though monitor 1 does not exist), so when I plug the cable in to my notebook, all of a sudden my desktop goes away and it's a just a blank background screen - and I cannot access the computer display settings or anything.... when the cable is unplugged this setting looks normal, so I can't figure out how to fix it.
Sorry, I have no idea what I'm doing here - please help!
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Hi,
All Dell monitors come with CD's for drivers. Your laptop may not know the monitor w/o its driver, it won't install automatically. Please check:
Ringht click a blank space on desktop,
Click Personalize
Click Display
Click Change display settings
Can you see BOTH laptop screen and external monitor in there as shown on the following image:
For testing, I put my Dell monitor is my main display. If I can't see 2 monitor, you need its driver first and then check the cable.
Regards.
BH
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I connected an external monitor to my MacBook Pro, but it doesn't open any programs. It Just sits there with a blank screen. How do I get it to open programs and act like a monitor?

I connected an external monitor to my MacBook Pro, but it doesn't open any programs. It Just sits there with a blank screen. How do I get it to open programs and act like a monitor?

Dear Jean:
It sounds like you are trying to get your external monitor to act as the primary viewing screen. For example it would have your Doc, Icons, Etc. In order to make the external monitor the primary screen you have to:
Open System Preferences.
Choose the Displays Icon
There will be several tabs to choose from pick Arrangement
Drag the toolbar to desired display
Let me know if this helps at all!
Lance

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With a minidisplay port to VGA or DVI or HDMI adapter:
http://store.apple.com/us/product/MB570Z/B/mini-displayport-to-dvi-adapter?fnode =53

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Hi,
What is the model/product of your AIO machine ? I many cases, you can't use HDMI port to connect to a TV because it is HDMI IN port. You need USB - HDMI converter/adapter to connect to a TV (or monitor).
Regards.
BH
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DVI connection to second monitor doesn't work

When I had the connection from my Mac Pro to my two monitors (20" Cinema display and 19" Princeton monitor), I had the black screens for a few seconds for both monitors then return to normal. It happens anytime. I read the forum and changed the VGA cable to connect the 19" Princeton monitor and now both monitors work fine.
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Hi Joe,
I tried to locate the right slot (x16) by going to
Expansion Slot Utility and changed from #1 to #2. It
showed my configuration of the PCI card now is x16 or
fully speed.
The problem is still the same with DVI connection to
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Mac Pro
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I'm fresh out of idea's. I assume that your card is a 7300GT, correct? I had an out of the box failure with mine and Apple replaced it. I was lead to believe that there were quite a few failures with the card. Interesting, they didn't even want the old one back.
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Mavec wrote:
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Hi alangium,
Welcome to the Support Communities!
Resetting your computer's PRAM should restore your Macbook Pro's screen appearance.
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
This article may provide some information about your Mini DisplayPort to AVI adapter. Have you tried to connect a different VGA monitor to your Macbook to see if you get the same results?
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http://support.apple.com/kb/HT3382
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The resolution available with the Apple Mini DisplayPort to VGA Adapter is 1920 x 1200. VGA displays that use higher refresh rates (such as 85 Hz) at resolutions of 1600 x 1200 or greater may not generate video properly until you lower the refresh rate.
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http://support.apple.com/kb/HT1573#5
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I hope this information helps ....
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Hey Everyone,
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Something else to check ..
Open System Preferences > Network then select the Wi-Fi tab.
Drag the school wi fi network name to the top of the list.
You can open System Preferrences by clicking the System Preferences icon in your Dock
Or click System Preferences from your Apple menu icon top left in your screen.
Or, from your Applications folder.
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Can I use the HDMI out on a HP ALL IN ONE TOUCHSCREEN Desktop to connect a second monitor with HDMI

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Frank
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Connect an external monitor

I am unable to get my hp pavilion entertainment pc to recognize an external monitor - orion
please help
is it my resolution settings?
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thanks

Hello lindalou63,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand you are having issues when trying to connect an external monitor to your computer running Windows Vista. I am providing you with an HP Support document: Connecting Monitors and TVs to Your PC (Windows Vista and XP), which will walk you through the steps required to correctly connect a monitor to a computer running both Windows Vista and XP. I would suggest you review the document and ensure you have followed all the steps provided. This should resolve your issue and let you get back to enjoying your computer again.
Please re-post if you require additional assistance. Thank you for posting on the HP Forums. Have a great day!
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Connecting to my monitor

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