Comment 2 for bug 1362606

After I installed a radeon graphics card with the open source drivers, I began experiencing severe tearing in VLC on Ubuntu 15.10. The CCSM workaround in the bug report works for me. "Unredirect Fullscreen Windows" is on by default in 15.10. "Unredirect Match" needed updating, however. I changed the "Vlc" entry to "vlc" (all lowercase), and my tearing problems went away.

If the setting description is any indication, then Composite is searching through the X11 window class (WM_CLASS) for the "Unredirect Match" setting. `xprop` reports VLC's full-screen window to have a class of "vlc" (all lowercase). Perhaps VLC changed their window class at some point?