On Wed, 16 Mar 2011 17:59:20 -0600, John Harrigan <jfharri...@fedex.com> wrote: > I have a Lenovo X201 laptop with an i7-620M processor. After I resume > from a Suspend to RAM the graphics are very slow. Suspend to Disk does > not cause the same problem and doing a Suspend to Disk after a Suspend > to RAM fixes the problem.
Known problem. The PAT lose the WC bits for the GTT aperture on resume. There is a workaround that we can do: recreate the ioremapping upon resume. (But the root cause is not a gfx driver bug.) > I see the same slow-down regardless of whether X11 is running or not. > I'm not doing 3D, I notice the slow-down in regular 2D stuff like > scrolling a lot of text through a terminal window. That's not regular 2D stuff, that's CPU fallback! You will only see a slight performance difference (an order of magnitude and more, with comparable decrease in power consumption whilst drawing) by switching to the XRender paths in your terminal. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
