Are you sure that SHMConfig setting is being applied? In recent Xservers using just section "InputDevice" is not enough, you have to link it from ServerLayout. Something like this (taken from gsynaptics README.Debian):
Section "InputDevice" Identifier "Synaptics Touchpad" Driver "synaptics" Option "SendCoreEvents" "true" Option "Device" "/dev/input/touchpad" Option "Protocol" "auto-dev" Option "SHMConfig" "on" EndSection Section "ServerLayout" Identifier "Default Server Layout" Screen "Default Screen" InputDevice "Generic Keyboard" "Core Keyboard" InputDevice "Synaptics Touchpad" "Core Pointer" EndSection -- GSynaptics couldn't initialize. https://bugs.launchpad.net/bugs/132627 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs