When running gdmthemetester with the XNESTSIZE environment variable set, it is supposed to show the theme taking the full window, but turns out it is stuck at a reduced size, not filling the entire window from the top left to bottom right. A fix is to do the commented change below in /usr/bin/gdmthemetester at line 75: if [ "x$XNESTSIZE" = x ] ; then eval `gdmXnest -b -o "-terminate"` else eval `gdmXnest -b -o "-geometry $XNESTSIZE -terminate"` fi #eval `gdmXnest -b` # remove this line export DISPLAY After making this change, the theme tester will occupy the entire window. Reproducible: Always Steps to Reproduce:
Unable to reproduce your issue with the current stable version of GDM. Please ensure that you do 'export XNESTSIZE="1024x768" ; gdmthemetester console happygnome'. The variable defines the size of the window in which the xnest is suppose to render.