Normally I only have my monitor connected to my PC (via DVI), but occasionally I like to enable my TV (via DVI-HDMI adapter) as a secondary monitor to watch films or play games. Weird thing is, whenever I connect my TV, Windows likes to think it's a good idea to reassign my monitor's identity to 2 and assign 1 to my TV.
Normally this wouldn't be a big deal, but it means that should I decide to use the Winkey+P shortcut to disable my TV, I have to click 'Projector Only'. If I click 'Computer Only', which would be the logical choice, Windows switches solely to my TV.
There are times when adjusting the screen resolution setting on your computer might be necessary to resolve issues with the display size on monitors and other output devices such as projectors. Don't wait until you are attempting to show your slide presentation to an interested audience to learn how to adjust the screen resolution in Windows.
![Tricaster Screen Dimensions Tricaster Screen Dimensions](/uploads/1/2/4/1/124195862/352890406.jpg)
I've tried swapping the cables, and even hooking up the TV after the computer has booted, and it seems like the moment I hook up the TV, Windows auto-detects the displays and reassigns identities as it sees fit. So, my question is: Is there any way to manually reassign monitor identities, be it through a control panel applet or the registry and have them stick, or maybe tell Windows that the monitor named 'SAMSUNG' is a friggin' TV or Projector and not my primary display? Primary display: Acer AL1916W Secondary: Samsung 32' LCD TV Video Card: ATI HD4870 X2, Catalyst 9.12. I've got this same problem, and I tried Ultramon. Ultramon itself identifies the monitors correctly, but it doesn't change anything about the way Windows 7 is identifying them. And stuff inside Ultramon still behaves in ways that make it clear that the way Windows 7 thinks about their ID's is how things are (if inside Ultramon you disable secondary displays, my main LCD monitor on the DVI turns off, despite Ultramon considering it my primary #1 display). It's a majorly frustrating problem, and I might add that I didn't have this issue on the release candidate for Windows 7.
I've tried everything I can think of to change the actual ID #'s of the monitors, but nothing does it. I haven't tried diving into the registry itself yet, but that's my next step. Normally I only have my monitor connected to my PC (via DVI), but occasionally I like to enable my TV (via DVI-HDMI adapter) as a secondary monitor to watch films or play games.
Weird thing is, whenever I connect my TV, Windows likes to think it'sa good idea to reassign my monitor's identity to 2 and assign 1 to my TV. Normally this wouldn't be a big deal, but it means that should I decide to use the Winkey+P shortcut to disable my TV, I have to click 'Projector Only'. If I click 'ComputerOnly', which would be the logical choice, Windows switches solely to my TV. Same problem here.
![Dimensions Dimensions](/uploads/1/2/4/1/124195862/642873051.jpg)
Microsoft has apparently no solution for the displays identity issue as far as I know. We have to live with it. Unfortunately!Does anyone know if the solution outlined in this link works?the best,DavidThis solution does not work in Windows 7.What if I were to re-install Windows 7 with only the monitor that I want to use as my primary monitor plugged in? Would this keep my primary monitor as display 1 even after plugging in a new 2nd display? I have a new HP Z600 workstation.
One monitor plugged into the DVI (labelled 1 of 2 in the Nvidia control panel), another monitor in one of the DisplayPorts (using a DVI adapter). The 2nd is labelled 2 of 2 in the Nvidia control panel.However, Win7 insists that the monitor that Nvidia says is 1 of 2 is '2' and the one marked 2 of 2 is '1'.The monitor marked '1 of 2' by Nvidia is where the BIOS/boot screen is.I went into the display control panel and made '2' as my primary monitor to Windows (the one labelled '1 of 2' by the nvidia driver).When I boot, SOMETIMES the 'hit control-alt-del' is on Windows 1 (ndivia '2 of 2') and sometimes it is on Windows 2 (nvidia '1 of 2').
And of course, all my desktop icons get reshuffled just about everytime. Something certainly is confused.
It's possible to change the screen resolution to a setting not supported by your monitor. If this happens, the screen will probably turn black and prevent you from seeing anything, including your mouse. Fixing this is a simple as and then following the directions above. This time, just make sure to lower the resolution to something that's likely supported by your monitor.
If doesn't work, try choosing the Enable low-resolution video option in (Windows 10 and 8) or for older versions of Windows. It's called Windows Advanced Options Menu in Windows XP, and the option is called Enable VGA Mode).