Description:
Graphical corruption occurs throughout the UI, at times completely random and corrupts the whole screen.

Additional info:
local/intel-dri 9.1.5-1
Mesa drivers for Intel
local/intel-gpu-tools-git 20130224-2
Tools for development and testing of the Intel DRM driver
local/intel-tbb 4.1_20130613-1
High level abstract threading library
local/lib32-intel-dri 9.1.5-1
Mesa DRI drivers for Intel (32-bit)
local/libva-intel-driver 1.2.0-1
VA-API implementation for Intel G45 chipsets and Intel HD Graphics for Intel Core processor family.
local/xf86-video-intel 2.21.12-1 (xorg-drivers xorg)
X.org Intel i810/i830/i915/945G/G965+ video drivers
local/linux 3.9.9-1 (base)
The linux kernel and modules
local/lib32-mesa 9.1.5-1
an open-source implementation of the OpenGL specification (32-bit)
local/lib32-mesa-libgl 9.1.5-1
Mesa 3-D graphics library (32-bit)
local/mesa 9.1.5-1
an open-source implementation of the OpenGL specification
local/mesa-libgl 9.1.5-1
Mesa 3-D graphics library
local/kdebase-workspace 4.10.5-1 (kde)
Provides the interface and basic tools for the KDE workspace

20-intel.conf:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "sna"
Option "TearFree" "true"
EndSection

Imgur links:
http://imgur.com/l8X8a4w - random full-screen corruption
http://imgur.com/WZqnbz6 - constant corruption, see sidebar icons (Home, Network, Images)
http://imgur.com/d4usi6d - 'preview' icon is only visible on mouse-over, 'back' icon is only visible when action is available


Steps to reproduce:
- turn on computer
- launch Dolphin (as an example)