Get rid of black borders in cairo-dock
On some computers, you may get massive black borders around panels in cairo-dock. On my laptop they obscured the desktop and when taking screen shots. On my desktop machine it obscured everything not in the center of screen. The standard solution, compiz, did not seem to cut it.
Installing and running xcompmgr solved the problem on both computers:
First create the autostart folder if it doesnt already exist: mkdir -p ~/.config/autostart Then create a xcompmgr desktop file lxshortcut -o ~/.config/autostart/xcompmgr.desktop
On my laptop, the screen capture program shutter hanged whenever xcompmgr was running. By adding the "-c" switch to xcompmgr, this seems to be resolved.
Read more: Link - lubuntu - How to start applications such as xcompmgr at start up? - Ask Ubuntu