I solved my problem with Gnome Classic and unwanted Unity dock showing in this session. I just disabled Unity Plugin in CompizConfig.
I've tested Unity from the SRU PPA (5.14.0+bzr2400ubuntu0+704) against Gnome Classic with Compiz (1:0.9.7.8-0ubuntu1.4). Sync To VBlank - disabled Unredirect fullscreen windows - enabled I tested the following benchmarks Unigine Sanctuary 2.3 (fullscreen 1920 x 1080), Unigine Tropics 1.3 (fullscreen 1920 x 1080), Unigine Heaven 3.0 (fullscreen 1280 x 1024) and the results were the same for Unity and Gnome Classic (Compiz). However when running Heaven benchmark in fullscreen 1920 x 1080 Unity was slower than pure Compiz. Unity Gnome Classic (Compiz) 8.1 13.2 203 333 3.9 8.3 17.4 29.1 This was true for every time I run Heaven 3.0 in this screen resolution. Unity in this case is always slower than pure Compiz. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/988079 Title: Much slower OpenGL frame rates with unityshell loaded, than plain compiz To manage notifications about this bug go to: https://bugs.launchpad.net/ubutter/+bug/988079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs