I have a fully updated ubuntu 12.04 desktop running xfce (no unity) and after installing updates, I get many for redraw artifacts make ST2 pretty much unusable on the screen. It is the whole window, not just a specific area of the main window. I am using the ATI fglx driver on a 64bit box with a triple head.
16.299] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/drivers/fglrx_drv.so
16.331] (II) Module fglrx: vendor="FireGL - AMD Technologies Inc."
16.331] compiled for 1.4.99.906, module version = 9.0.2
16.331] Module class: X.Org Video Driver
Anyone else seeing this? When files are open it can be worse. Is there other information that would be helpful?
matt

can’t do anything with that. Only can switch to intel grpahic or change drivers.