Tassos Koutlas wrote: > Package: kde-window-manager > Version: 4:4.11.6-2 > Severity: important > > Dear Maintainer, > after an upgrade yesterday to 4.11.3, desktop effects are no longer > loading. The rendering system is set to OpenGL 2. The effects were working > up until the upgrade with no problem. The system just says: "20 effects > failed to load" without any further information as to what may the cause > of this. > > The above behaviour has an impact on loging out because the system hangs > and never quite finishes loging out. I then have to switch to a tty, stop > kdm manually and issue a shutdown command from the shell. >
OpenGL will not work after some packages updates. I use intel HD4300/4200 and everytime I will logout and run dpkg-reconfigure xserver-xorg-video-intel and restart x server, then OpenGL will work again.