Ubuntu
gtk+3.0 package

  1. Bug #2004533
  2. Comment #24

Comment 24 for bug 2004533

Revision history for this message
Daniel van Vugt (vanvugt) wrote : Re: Gtk-WARNING ... drawing failure for widget ... invalid value (typically too big)

Another suggestion is to use a scaling factor of 1.5 instead of 1.6. That might simplify the required quotient to 3/2 (initially rendering at 3x resolution instead of 8x), so might be enough to have all three monitors working.