On 11/08/16 06:34 AM, Leo L. Schwab wrote: > Package: xserver-xorg-video-intel > Version: 2:2.99.917+git20160706-1 > Severity: important > > Dear Maintainer, > > Since updating to the latest Intel driver, I've noted rendering > performance has suffered in some applications.
As you can see in the Xorg log file, you're no longer using the intel driver. > I've finally identified a program that reliably exhibits the issue -- > 'phosphor' from the xscreensaver package. > > To reproduce: > - Run phosphor by hand: > /usr/lib/xscreensaver/phosphor > - Wait for the cursor to arrive at the bottom of the window. When > the "terminal" scrolls, rendering performance tanks immediately. > This is doubtless due to the full-window fade effect being > applied, which has now become very slow. This slowness was not > present in previous driver versions. FWIW, https://patchwork.freedesktop.org/patch/105129/ should help with this particular issue. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
