Version: (using KDE 4.1.0) Installed from: Unlisted Binary Package Compiler: gcc version 4.3.1 20080724 (prerelease) (GCC) OS: Linux * Arch Linux, * kernel 2.6.26, * ATI Radeon HD 2400 Pro (catalyst 8.7-2) fglrxinfo output: ----------------- display: :0.0 screen: 0 OpenGL vendor string: ATI Technologies Inc. OpenGL renderer string: ATI Radeon HD 2400 PRO OpenGL version string: 2.1.7769 Release After selecting the option "enable desktop effects" the entire desktop goes black. All windows become black or dark gray. Reinstatement of the previous state is not possible. Only the removal of the directory .kde4 allows for the normal work. ATI driver is working properly, direct rendering is enabled.
*** This bug has been marked as a duplicate of 159672 ***