[arch-general] Intel SNA artifacts in Firefox

[Paul Gideon Dann]

Since the xf86-video-intel update that enabled SNA by default, I've noticed 
that some areas of some web pages (mostly flat backgrounds) in Firefox suffer 
from heavy graphical corruption, as if those areas are being used as rendering 
buffers elsewhere: bits of web pages from other tabs, etc...  It goes away 
when I scroll the page.  It happens regularly, every couple of minutes or 
more.

This is on a Dell Latitude E5520 (Sandybridge i5) with KDE.

I'm wondering if anyone else is seeing this?

Paul