Version: (using KDE 4.2.96) OS: Linux Installed from: Debian testing/unstable Packages With 4.2.96 from Debian Experimental shadows no longer function for all windows. Shadows are only shown for menus, tooltips and splashscreens, but not for standard windows. Shadows functioned well with 4.2.4 and a few versions before. Composite is enabled and functional. The configuration section of kwinrc looks like this: [Effect-Shadow] Fuzzyness=25 IntensifyActiveShadow=false Opacity=0.5 Size=25 XOffset=0 YOffset=3 forceDecoratedToDefault=true forceOtherToDefault=true forceUndecoratedToDefault=true
What decoration are you using?
Crystal (from Debian, package kwin-style-crystal 2.0.3-1). Changing it makes the shadow reappear.
Looking at the source code it's a decoration bug as it's blacklisting abilities instead of whitelisting them. This means that it is incorrectly announcing support for the new abilities in KDE 4.3 even if it hasn't implemented them.