multiple-monitors

I have two monitors on a new Ubuntu 14.02 machine. One monitor is 1024X768 VGA. The second monitor is 1920X1080 HDMI No matter what I do root.winfo_screenwidth() reports 2944 (The sum of both monitors) (If I stack the monitors then winfo_screenheight reports the sum of heights) Of course I did most of the development of my software on Windows where it worked fine (with two monitors) With only one monitor plugged in to the Ubuntu machine, it works fine. This all fails very badly with: import Tkinter root=Tkinter.Tk() root.attributes('-fullscreen',True) root.update() print root.winfo_screenwidth

I am attempting to programatically make the 2nd Monitor have a duplicate display. My function below should change the 2nd monitors display to 'duplicate display', ie, make the 2nd monitor display everything that is on the 1st/Primary monitor. My Problem: When I run my function it successfully finds the 2nd monitor and it changes that monitors display x coordinate to 0, ie, the left of the primary monitor screen by changing the DEVMODE dmPosition.x property. Both of my 2 monitors refresh themselves(they go black then reshow their screen) but the 2nd monitor still has the extended display

I have Dual Monitors and want displaying a windows form in the center of the screen. (I have a variable MonitorId=0 or 1). I have: System.Windows.Forms.Screen[] allScreens=System.Windows.Forms.Screen.AllScreens; System.Windows.Forms.Screen myScreen = allScreens[0]; int screenId = RegistryManager.ScreenId; // DualScreen management if (screenId > 0) { // has 2nd screen if (allScreens.Length == 2) { if (screenId == 1) myScreen = allScreens[0]; else myScreen = allScreens[1]; } } this.Location = new System.Drawing.Point(myScreen.Bounds.Left, 0); this.StartPosition = FormStartPosition.CenterScreen;

I have a desktop computer that is hooked up to 3 different monitors of which only two can be active at any one time. One is a primary monitor and is always active. I can manually switch between the other two: one a monitor, another an HDTV. The switch is a mechanical switch which only handles VGA (and at that, only the RGB components are actually switched) so there is no feedback to the computer from the other devices, thus windows can not make any automatic adjustments to change resolutions and things like that. I want to make a batch file that will automatically switch the screen

I'm trying to create two windows on two displays. But I have a problem: the second window is displayed in full screen mode, but the first window is minimized, and I need to click on it on the taskbar to expand to full screen. I create windows in loop with code: windows_data.window = SDL_CreateWindow("Title", SDL_WINDOWPOS_CENTERED_DISPLAY(i), SDL_WINDOWPOS_CENTERED_DISPLAY(i), width, height, SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_SHOWN); Adding the flag SDL_WINDOW_MAXIMIZED does not solve the problem. My system is Windows 8.1 Proffesional. I debug step by step and found the reason in SDL