I can confirm that removing the -xshm option from /usr/bin/scratch resolves the problem. The switch -xshm seems to work fine in 3D mode (unity) on a secondary screen though. See attachment in bug #1072309
I can confirm that removing the -xshm option from /usr/bin/scratch resolves the problem. The switch -xshm seems to work fine in 3D mode (unity) on a secondary screen though. See attachment in bug #1072309