On 5/24/18, 4:16 PM, "Interest on behalf of Thiago Macieira" 
<interest-bounces+mike.jackson=bluequartz....@qt-project.org on behalf of 
thiago.macie...@intel.com> wrote:

    On Thursday, 24 May 2018 16:57:03 -03 Michael Jackson wrote:
    > QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to
    > '/tmp/runtime-buildbot'
    
    This one means your environment isn't properly set up. Make sure 
    XDG_RUNTIME_DIR is set correctly to the correct path.
    
    > qt.qpa.screen: QXcbConnection: Could not connect to
    > display
    > Could not connect to any X display.
    
    export QT_QPA_PLATFORM=offcreen
    
    > So what, _exactly_, am I missing. Is there a platform plugin that I need 
to
    > force load in these situations?
    
    Yes, the offscreen one.
    
    -- 
    Thiago Macieira - thiago.macieira (AT) intel.com
      Software Architect - Intel Open Source Technology Center
    
Well I got a bit farther and was able to use the -platform offscreen arguments 
to our command line applications (still worried what will happen when our 
libraries are called from Python) and I got really close. BUT this happens:

"This plugin does not support application fonts"

Some of the "painting" that we do involves fonts (and scaling them up or down 
depending on the size of the output image).

So I would sum up the whole thread as "technically" one can use QtGui 
application but anything past trivial painting isn't practically possible 
across platforms.

--
Mike Jackson


 



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