Jtdcftul

I have dual display configuration, and want all new and old applications start on primary display, which is on the right. But some apps start on second screen, regardless where focus/mouse pointer is. I think this is because top:left corner 0:0 is on second monitor. And its bigger then primary, can this be a cause?

Secondary is a TV where I run kodi, which have a setting to choose display.

May be there are some app what remember for every app position and display, and also take care when second is turned off - mean remember position until monitor is on again. In earlier versions of ubuntu compiz do that, but no more.

Update: Changed DE to cinnamon

Be prepared to get your hands dirty

On the edge of what I feel we could ask users to do, but on the other hand, when instructions are clear, why not? So here we go...

Background process to set on which monitor new windows should appear

The Vala snippet

using Wnck;

using Gdk;

using Gtk;



// compile:

// valac --pkg gtk+-3.0 --pkg gio-2.0 --pkg libwnck-3.0 -X "-D WNCK_I_KNOW_THIS_IS_UNSTABLE" 'file.vala'



namespace move_newwins {



    private int monitor_geo_x;

    private int monitor_geo_y;

    private int monitorindex;

    private string currmon;



    private void getwins() {

        var dsp = Gdk.Display.get_default();

        var gdkscr = Gdk.Screen.get_default();

        unowned Wnck.Screen scr = Wnck.Screen.get_default();

        scr.force_update();

        get_monitors(dsp, gdkscr);

        scr.window_opened.connect(newwin);

    }



    private void newwin (Wnck.Window newwin) {

        newwin.unmaximize();

        int winx;

        int winy;

        int winwidth;

        int winheight;

        newwin.get_geometry(out winx, out winy, out winwidth, out winheight);

        Wnck.WindowType type = newwin.get_window_type();

        if (type == Wnck.WindowType.NORMAL) {

            newwin.set_geometry(

                Wnck.WindowGravity.NORTHWEST,

                Wnck.WindowMoveResizeMask.X |

                Wnck.WindowMoveResizeMask.Y |

                Wnck.WindowMoveResizeMask.WIDTH |

                Wnck.WindowMoveResizeMask.HEIGHT,

                monitor_geo_x[monitorindex] + 100,

                monitor_geo_y[monitorindex] + 100,

                winwidth, winheight

            );

        }

    }



    private int get_stringindex (string s, string arr) {

        for (int i=0; i < arr.length; i++) {

            if(s == arr[i]) return i;

        } return -1;

    }



    private void get_monitors(Gdk.Display dsp, Gdk.Screen gdkscr) {

        int nmons = dsp.get_n_monitors();

        string monitornames = {};

        for (int i=0; i < nmons; i++) {

            Gdk.Monitor newmon = dsp.get_monitor(i);

            monitornames += newmon.get_model();

            Rectangle geo = newmon.get_geometry();

            monitor_geo_x += geo.x;

            monitor_geo_y += geo.y;

            monitorindex = get_stringindex(

                currmon, monitornames

            );

        }

    }



    public static void main (string args) {

        currmon = args[1];

        Gtk.init(ref args);

        getwins();

        Gtk.main();

    }

}

1. 
   

   The Vala snippet needs to be compiled. To do so you need to install a few things:

   
   
   

   sudo apt install valac libwnck-3-dev libgtk-3-dev
   
   

   
   



2. Copy the snippet below, save it as win_tomonitor.vala



3. 
   

   Compile the snippet with the command:

   
   
   

   valac --pkg gtk+-3.0 --pkg gio-2.0 --pkg libwnck-3.0 -X "-D WNCK_I_KNOW_THIS_IS_UNSTABLE" '/path/to/win_tomonitor.vala' 
   
   

   
   
   

   (I know, the wnck argument is silly, but needed), an executable will be produced in the working directory.

   
   


4. Find out the name of your primary monitor by running the command xrandrin terminal.


5. 
   

   Run the executable with the targeted monitor as argument, e.g.

   
   
   

   /path/to/win_tomonitor HDMI-1
   
   

   
   

New ("normal") windows will appear on 100px (x + y) from topleft of the targeted monitor.

N.B.

When adding this as a startup item, you might need to add a break of a few seconds before running it. If you run into issues on login/startup, please mention.