>> SNA works great for me and drastically improves my video playback >> performance. However, performance reverts back to non-SNA levels >> if an external monitor is attached during boot. SNA works fine if >> the external monitor is attached after the system has already >> booted. I'm on a Dell XPS 13 Ultrabook on xf86-video-intel-2.20.6 >> in Gentoo. > > same bug? > https://bugs.freedesktop.org/show_bug.cgi?id=48652 I believe that bug is about losing the external monitor connection entirely. My issue seems to be SNA working or not. SNA is mentioned at all in that bug. - Grant
