[GRASS-dev] gis.m, thematic layer: You must open a display monitor

[Moritz Lennert]

Michael,

I am seeing a new error for d.vect.thematic. Trying to display a 
thematic layer fails with the message: *** You must open a display 
monitor ***

I can reproduce this with any spearfish vector layer.

The problem seems to be in lines 336-345 where it checks for the 
existance of an x-monitor. It seems to do this unconditionally, so even 
if you run it from the GIS Manager it still checks and fails if there is 
not monitor.

I can't find anything recent in the commit logs that would explain this, 
so before trying to go deeper into it, I wanted to know if you had an 
idea why this is suddenly happening.

Moritz