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Windows 7: Trying to clone displays

28 Mar 2014   #11
rmike1991

Windows 7 Ultimate x64
 
 

I apologize if my post offended you guys in any way. I’m not as advanced in those things as you are.
To me “clone” (as it states on the Catalyst) was simply showing the desktop on my TV at the same time with the native resolution left on the desktop. To be honest with you I never looked closely on the TV to see if any part of the desktop is missing or something. As long as it was not in “extend” mode. Whatever it was/is on XP is good enough for me to edit and play the movies since it would fill up the entire TV screen. And this is what I’m shooting for in Windows 7. Now that I understand what exactly “clone” means, let me rephrase what I need. I need to be able to see my desktop on the entire TV screen at the same time with my 1600X1200 monitor resolution left as is. As long as the movie that I play on the desktop will be full screen on TV.
So how do I keep my monitor’s resolution while doing that? As soon as I click on “duplicate”, Windows changes it to 1440X900 and I can’t change it.
Here is a little video of the way it is on Windows XP. And this is what I want it to be on Windows 7.
https://www.youtube.com/watch?v=r5pA...ature=youtu.be


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28 Mar 2014   #12
Kari

Microsoft Community Contributor Award Recipient

 

Your video finally proves what we have been telling you: the displays are using the same resolution, the 16:9 movie filling the whole 16:9 display (TV) but showing black bars on top and bottom of the movie on a 4:3 monitor:

Monitor, black bars clearly visible to show a 16:9 movie on a 4:3 aspect ratio display:
Trying to clone displays-2014-03-29_00h13_28.png
TV, native 16:9 aspect ratio thus able to show movie filling the whole available area:
Trying to clone displays-2014-03-29_00h16_23.png
Anything else is simply not possible using displays with different aspect ratios and maximum resolutions.

Simple rules, and believe me, really nothing Microsoft could fix for you:
  • Two or more displays cloned (duplicated):
    • All displays have to use same resolution
    • Maximum available resolution determined by the display with smallest maximum resolution, for instance a dual display setup with one display 800 X 600 max resolution and other display 1920 X 1080 resolution, resolution used when duplicated maximum 800 X 600 on each display
    • If resolution used is aspect ratio 4:3, a 16:9 display shows the signal with black bars left and right
    • If resolution used is aspect ratio 16:9, a 4:3 display shows the signal with black bars top and bottom
I do not understand why you can't use extended desktop settings? Why is it so important you must have the movie showing on both displays; judging by the video you posted both are very close in the same room so everyone is naturally watching the TV (bigger, 16:9), not the PC display?

Kari


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28 Mar 2014   #13
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

Why do you want to duplicate the displays ?

What`s the benefit of duplicating them ?

I would just extend your main display.
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28 Mar 2014   #14
rmike1991

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Kari View Post
Why is it so important you must have the movie showing on both displays
Because when I edit movies/videos I like my mouse to be on the computer desktop in front of my eyes where the editing program is and not on TV even though it's in the same room. I can always turn my head or even come closer to the TV to see how the borders etc look like on 16:9 but not going there with the mouse

Quote   Quote: Originally Posted by Kari View Post
    • Maximum available resolution determined by the display with smallest maximum resolution, for instance a dual display setup with one display 800 X 600 max resolution and other display 1920 X 1080 resolution, resolution used when duplicated maximum 800 X 600 on each display
I understand now. So if I want to do a dual display setup with one display 1600X1200 max resolution (in my case) and other display 1920X1080 max resolution, is it possible to somehow keep that 1600X1200 resolution on my monitor and have the same result you saw in the video?
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28 Mar 2014   #15
dsperber

Windows 7 Pro x64 (1), Win7 Pro X64 (2)
 
 

Quote   Quote: Originally Posted by rmike1991 View Post
I understand now. So if I want to do a dual display setup with one display 1600X1200 max resolution (in my case) and other display 1920X1080 max resolution, is it possible to somehow keep that 1600X1200 resolution on my monitor and have the same result you saw in the video?
When you "extend" the Windows desktop, EACH monitor is utilized at its native resolution and the Windows desktop extended horizontally across them both.

You can then pull any program window onto either screen depending on what you want or need at the time, and keep it in window mode or maximize it to full screen (on that monitor).

So when you're working on video editing you would pull the program window onto your monitor in front of you, and it would use up to the entire 1600x1200 area of the Windows desktop that is visible on that monitor. If you wanted to PLAY a movie you could drag the window over to the TV monitor, and it would play there... in true 16x9 1920x1080 resolution.

Note: since your two monitors have different vertical height, when you drag a window from one monitor to the other there might be what looks like a loss or increase of vertical window size. But this is the natural result of having two different size/shape display devices.

What's important about "extend" mode is that the two monitors are entirely independent, with each presented at its native resolution. And the entire 2-monitor space is one large consolidated Windows desktop, so that you can drag windows across both of them as you want.
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28 Mar 2014   #16
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

Exactly, you just drag what you want to view over to the tv.

Is your memory running in dual channel with 10 GBs ? If not I`d fix that.

8 GB in dual channel is better then 10 GB in single channel.
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28 Mar 2014   #17
rmike1991

Windows 7 Ultimate x64
 
 

Guys, thanks for your replies. I knew how to do the extended mode from the very beginning. The reason I started this thread is to find out how to do the clone or I should say duplicate the displays (you know what I mean by now). I also understand that if I do the "extend" mode I'll have the native resolution on both. But this is not what I want. I want them both running 1600X1200 with the stretch on TV to full screen. Is that possible to do?

Quote   Quote: Originally Posted by AddRAM View Post
Is your memory running in dual channel with 10 GBs ? If not I`d fix that.

8 GB in dual channel is better then 10 GB in single channel.
Could you please explain that to me. I have no idea what you're talking about. How do I check if my memory is running in dual channel or not?
My System SpecsSystem Spec
28 Mar 2014   #18
Kari

Microsoft Community Contributor Award Recipient

 

Quote   Quote: Originally Posted by rmike1991 View Post
I understand now. So if I want to do a dual display setup with one display 1600X1200 max resolution (in my case) and other display 1920X1080 max resolution, is it possible to somehow keep that 1600X1200 resolution on my monitor and have the same result you saw in the video?
No. I forgot this from my previous post:

First let's set some variables:
  • X = maximum theoretical amount of pixels horizontally and Y = maximum amount of pixels vertically on cloned dual display (both displays)
  • A1 = maximum amount of pixels horizontally and B1 = maximum amount of pixels vertically on display 1
  • A2 = maximum amount of pixels horizontally and B2 = maximum amount of pixels vertically on display 2
Then:
  • If A1 < A2 then X = A1, else X = A2
  • If B1 < B2 then Y = B1, else Y = B2
The same in plain English: the theoretical maximum horizontal amount of pixels is the smaller of two individual maximum horizontal amounts, and the theoretical maximum vertical amount of pixels is the smaller of two individual maximum vertical amounts.

Your example, a 1600 X 1200 monitor and a 1920 X 1080 TV; the smaller horizontal amount of the two is 1600, and the smaller vertical amount is 1080. Theoretical maximum resolution would be 1600 X 1080 but as Windows does not recognize it as a normal 4:3 or 16:9 resolution, one or both (the horizontal and the vertical) values must be changed to get a valid resolution which can be shown on dual display so that at least one display is showing the correct signal filling the entire screen, using correct aspect ratio.

In this case the best possible compromize would be to use 1600 * 900 resolution which your TV (1920 * 1080, aspect ratio 16:9) can show correctly, and which your monitor (1600 * 1200, aspect ratio 4:3) shows with horizontal bars top and bottom, exactly as in your video, or 1440 * 900(*) which your monitor can display correctly but your TV would show black bars left and right.

Reading this through I have difficulties to understand what I just typed . Hopefully you get it.

Kari

(*) = In this case the smaller vertical value was 1080 which is not a valid value for a 4:3 display, meaning it is reduced to next possible valid 4:3 aspect ratio value which is 1024.
My System SpecsSystem Spec
28 Mar 2014   #19
dsperber

Windows 7 Pro x64 (1), Win7 Pro X64 (2)
 
 

Quote   Quote: Originally Posted by rmike1991 View Post
Guys, thanks for your replies. I knew how to do the extended mode from the very beginning. The reason I started this thread is to find out how to do the clone or I should say duplicate the displays (you know what I mean by now). I also understand that if I do the "extend" mode I'll have the native resolution on both. But this is not what I want. I want them both running 1600X1200 with the stretch on TV to full screen. Is that possible to do?
We're back to the exact definition of what "clone" mode is and how it works.

Your YouTube clip shows what I had described previously, which relates to viewing what is clearly a 16x9 image on two different aspect ratio screens. When you display a 16x9 image on a 16x9 screen it fills the screen. When you display a 16x9 image on a 4:3 screen it gets "letterboxed" (i.e. black bars on top and bottom, to center the OAR 16x9 rectangular shaped image vertically while extending it the full left/right horizontal width of the screen).

However this doesn't mean you're not watching both display devices at 1600x1200. It's just that since the 16x9 TV screen is actually "less tall" than your 4:3 monitor, there are no black bars to display on the TV while still presenting the rectangular image to fill out the entire rectangular shaped screen. In contrast, that rectangular shaped image is "centered" as appropriate on the 4:3 screen, i.e. that's what is meant by "letterboxed 16:9".

Now, can you make a duplicate of that YouTube clip showing what it looks like with Win7? I'm curious to see what, if anything, is different. Again, picture = 1000 words, so this demonstration approach is perfect.
My System SpecsSystem Spec
28 Mar 2014   #20
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

Quote   Quote: Originally Posted by rmike1991 View Post
Guys, thanks for your replies. I knew how to do the extended mode from the very beginning. The reason I started this thread is to find out how to do the clone or I should say duplicate the displays (you know what I mean by now). I also understand that if I do the "extend" mode I'll have the native resolution on both. But this is not what I want. I want them both running 1600X1200 with the stretch on TV to full screen. Is that possible to do?

Quote   Quote: Originally Posted by AddRAM View Post
Is your memory running in dual channel with 10 GBs ? If not I`d fix that.

8 GB in dual channel is better then 10 GB in single channel.
Could you please explain that to me. I have no idea what you're talking about. How do I check if my memory is running in dual channel or not?
http://en.wikipedia.org/wiki/Multi-c...y_architecture

Download and install CPU-z then open the memory tab to check.

CPU-Z CPUID - System & hardware benchmark, monitoring, reporting
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