I had tearing in Teeworlds with vsync enabled after upgrading from 13.10 to 14.04. I confirm that the patch sdl-check-for-SDL_VIDEO_X11_BACKINGSTORE.patch fixes the issue.
I had tearing in Teeworlds with vsync enabled after upgrading from 13.10 to 14.04. for-SDL_ VIDEO_X11_ BACKINGSTORE. patch fixes the issue.
I confirm that the patch sdl-check-