Opening FG on a specific screen (Linux)

[Bjoern]

Does anybody have a working method for opening FG on a specific screen on Linux?

FG version is Next/Git (2019.2.0)
OS is Arch Linux with XFce 4.14, X-Server version is 1.20, proprietary Nvidia drivers.

My monitor setup has a main 22" monitor at 1680x1050 resolution defined a s display 0 and a small 17" monitor at 1280x1024 to the left of it defined as display 1.
Desktop space starts at 0,0 on display 1. The top left of the main monitor is therefor at 1280,0 in desktop space coordinates.

While the Launcher dutifully launches on the screen it is called from, the main FG (OSGviewer) window ALWAYS launches at 0,0, which means on my small monitor. It is automatically scaled down to 1280x1024, although I've defined 1680x1050 as a resolution in the Launcher.
Selecting "fullscreen" in the launcher produces a 2960 pixel wide and 1050 pixel tall window uglily stretched across both monitors.


Things I've tried:

1) Custom XML file with new camera and viewport definitions, lauched by "--config=..." flag. Here's a sample that produces a duplicate UI text and still launches on the wrong display:

Code: Select all

<PropertyList>
  <sim>
    <rendering>
      <camera-group>
        <camera>
          <window>
       <name type="string">main</name>
            <host-name type="string"></host-name>
            <display>0</display>
            <screen>0</screen>
            <fullscreen type = "bool">false</fullscreen>
          </window>
     <viewport>
            <x>1280</x>
            <y>0</y>
            <width>1680</width>
            <height>1050</height>
          </viewport>
        </camera>
        <gui>
          <window>
            <name type="string">main</name>
          </window>
        </gui>
      </camera-group>
    </rendering>
  </sim>
</PropertyList>

2) Devilspie and devilspie2, each with custom rules or scripts. No success either.


I'm starting to think that this is a bug. Has anybody experienced something similar?

[Puffergas]

I start FG in window mode then it can be slid to what ever display. From there it can be set to full screen.

Raspberry Pi4

[Bjoern]

I start FG in window mode then it can be slid to what ever display. From there it can be set to full screen.

Yes, that works and I have to do that, too. But my point is that I do not want to do it in the first place and rather have the FG window open on the correct screen when I start fgfs from the Launcher.

[Bjoern]

Fixed the issue with a new XML config file based on one posted by Torsten D.

Don't mind the framerate throttling and multithreading entries. I've left them in to play around with them.

Code: Select all

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<PropertyList>
<sim>
<!-- frame-rate-throttle-hz type="double">30</frame-rate-throttle-hz -->
<rendering>
   <!-- multithreading-mode>AutomaticSelection</multithreading-mode -->
   <!--multithreading-mode>SingleThreaded</multithreading-mode-->
   <!--multithreading-mode>DrawThreadPerContext</multithreading-mode -->
   <!--multithreading-mode>CullDrawThreadPerContext</multithreading-mode -->
   <!--multithreading-mode>CullThreadPerCameraDrawThreadPerContext</multithreading-mode-->

   <camera-group>

   <window>
     <name type="string">FlightGear (Next)</name>
     <host-name type="string"></host-name>
     <display>0</display>
     <screen>0</screen>
     <fullscreen type = "bool">false</fullscreen>
     <decoration type = "bool">true</decoration>
     <x>1280</x>
     <y>0</y>
     <width>1680</width>
     <height>1050</height>
   </window>

   <gui>
     <window>
      <name type="string">FlightGear (Next)</name>
     </window>
   </gui>

   <camera>
     <name type="string">Main View</name>
     <window>
      <name>FlightGear (Next)</name>
     </window>
   </camera>
   </camera-group>
</rendering>
</sim>
</PropertyList>

Save the code in an empty XML file and then launch it from the QT launcher or command line. See here for a how to:
http://wiki.flightgear.org/FlightGear_configuration_via_XML#Adding_your_own_settings