> On Thu, 25 Apr 2019 18:37:22 +0200
   > Uwe Brauer <oub@...> wrote:


   > In other words, in whatever Ubuntu's default desktop is these days, starting
   > the program places an icon in the system tray which provides right-click
   > or drag-and-drop functionality that goes beyond starting the program, and
   > which you find useful.

Right.

   > I checked the developer's website ( mathpix.com ).  The application appears
   > to be closed-source.  Snap ( snapcraft.io ) is a distro-hostile "universal" installer 
   > program that I wouldn't touch with a barge pole, and the developer's site does 
   > not offer the Linux version for download in any other format.  Furthermore, the 
   > file it does offer is labeled as being for Ubuntu, which with people like these 
   > who probably don't know much about Linux means they only tested it on one 
   > version of the distro, and with all-default settings.  They will not have tested TDE.
   > They will probably not even have heard of TDE.


I contacted them and yes this is my impression too.


   > My guess would be that this thing is calling something that's specific to the default
   > Ubuntu desktop rather than following the XDG specification for system tray icons 
   > (yes, it seems there is one).  At this point, I'd install a third desktop environment 
   > (possibly XFCE or Lumina) and see if it works as expected there.  If it doesn't, 
   > complain to mathpix.com that their application doesn't follow standards and hasn't 
   > been properly tested.  If it does, well, we've at least narrowed the problem down 
   > to "what do these DEs do that TDE doesn't?"

Good, idea. I installed XFCE and the same problems occur there. So it
seems that mathpix did something very specific for Ubuntu.

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