Connecting PC monitor to MMD G4

So I recently acquired a Flat-panel LCD Monitor (Sony SDM S51) to replace my CRT (NEC AccuSync) after it's connections went bad and started giving me everything green hued. It hooked up fine and it was amazing to see my system on a crisp, clear, correctly-colored screen!
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Except when I went to put the machine to Sleep, it shut off instead. I thought it was an accident. Until the next day when I went to start up the machine and it wouldn't...at all. It was like it had no power going to it! When I switched back the monitors it turned on fine. Now I'm scared to reattach the new friends... frenemies, rather.
A co-worker told me that it could have something to do with a digital or analog output/input from either machine. I've been looking online and have no idea what to look for...OR if there's an adapter I could get that would help the situation. Any thoughts??
Thanks!!
Judi

So I retried (via Genius Bar suggestion) and I reset the PMU switch and when I went to plug in the Sony monitor again, the machine started up on it's own! I hadn't even screwed in the adapter yet when I heard the DONG. Tre freaky~
I left it on for a few hours and then went to shut it off and everything went smoothly, until the G4 was actually shutting down. As soon as the fan sound stopped, the monitor flashed an error message "NO IMPUT SIGNAL" and restarted the computer! The fan went on full power and the machine came right back on, no problems. Except for the whole "monitor taking control of the PC" thing...Tested it a few more times, with Sleep as well, and the same results followed. I ended up unplugging the monitor and just manually shutting off the mac. Haven't reconnected since.
Anyone have ANY idea what is going on here??
Thanks,
Judi

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Hi,
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The two monitors should show two different windows which is opened through my macbook.
I have observed that macbook has only one mini display port through which I connect to HDMI or to DVI ports in monitor.
So how do I connect another monitor source to my macbook, which ports can help in this situation?
The monitors I have which can supports HDMI,DVI,VGA and DP ports.
Could anyone help me on this issue.
Thanks.

You can use a USB 2.0/3.0 to HDMI/DVI interface. You might also consder Thundebolt to HDMI/DVI.
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How do I connect two monitors to my macbook pro?

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Hi Seearter,
Welcome to the HP Forums!
I would like to take a moment and thank you for using the forum, it is a great place to find answers. For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that when you connected 2 monitors, one with the HDMI connection ( works fine) and one with the USB adapter you are getting a no signal message on the USB connected one. Here are two links I believe will assist you.
Connecting a Monitor, Projector or TV (Windows 7)
Using Two or More Monitors with One Computer in Windows 7
Please do not hesitate to reply, if you would like further assistance. Please provide the results of the troubleshooting.
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

Is it possible to connect 2 monitors to a mac mini (2011) model

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Cant get display on both screens. Initially screen shrank on connecting monitor but have fixed this by changing the resolution. Have selected Duplicate on both screens in the "connect to a projector" but sill blank on the monitor. Compure is recognising the monitor as it is showing in the list of devices/printers. Baffled.

Hi @janep898,
Welcome to the HP Forums!
It is a terrific place to find answers and information!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
I understand that you have connected a second display but have selected duplicate but it remains blank.
Initially the screen shrank which you resolved by changing the resolution.
Have you done all your Windows updates?
Have you tried using the Using Automated Troubleshooting (Windows 7)?
Have you ran the HP Support Assistant to help with HP updates and resolving issues?
Here is a link to Connecting a Monitor, Projector or TV (Windows 7) that should assist you in overcoming this issue.
If you are still experiencing an issue, please contact HP support for assistance.
Please call our technical support at 800-474-6836. If you live outside of the US/Canada Region, please click the link below to get the support number for your region. Phone Assist Worldwide
Good Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

Connecting Displayport Monitor with Thunderbolt 2

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From:
Using 4K displays and Ultra HD TVs with Mac computers
I have the Dell and had to set it up as described above to get 60 Hz.
Your monitor supports:
Your Samsung UHD monitor is perfect for your game consoles as well as your PC. Thanks to 2 HDMI ports, both your computer and your console can be connected simultaneously, so you don’t have to unplug and plug in each time when you want to switch between them. That means less hassle and more time for entertainment. Thanks to DisplayPort connectivity, your monitor is also ready to connect to UHD-compatible devices and content. *Supports HDMI 1.4 (3840 x 2160, 30Hz) and Display Port 1.2 (3840 x 2160, 60Hz)
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Hi there BrianYip,
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What is the best way to connect 2 monitors to a Mac Pro 13 inch (2013)?

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Connecting PC monitor to MMD G4

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