Package: nvidia-driver Followup-For: Bug #900248 I think this bug is caused by a change in xserver 1.20. The nvidia libglx.so gets installed in /usr/lib/xorg/modules/linux/, but this directory has been removed from X's search path. As a result X only finds the default libglx.so in /usr/lib/xorg/modules/extensions/. See this commit: https://cgit.freedesktop.org/xorg/xserver/commit/?id=97bd6e453676516891250389ec0fd695c110087c
Best regards, Peter