Comment 9 for bug 753176

Just a guess as to where to check...but in compiz, maybe the problem is in /plugins/wall/src/wall.cpp? Maybe in the

void
WallScreen::drawCairoTextureOnScreen (const GLMatrix &transform)

or

void
WallScreen::drawArrow ()

functions?

http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/trusty/compiz/trusty/view/head:/plugins/wall/src/wall.cpp