--- /dev/null
+#!/bin/sh
+
+# Undo bumblebee setup.
+sudo service bumblebeed stop
+sudo modprobe nvidia-drm
+sudo update-alternatives --set glx /usr/lib/nvidia
+
+# Use special xorg.conf and pass NVIDIA_DIRECT directive to .xinitrc.
+NVIDIA_DIRECT=1 startx -- -config xorg.conf.alt
+
+# Recreate bumblebee setup.
+sudo service bumblebeed start
+sudo update-alternatives --auto glx
# Set up compose key.
xmodmap ~/.Xmodmap
+# Optionally, for certain Optimus systems with a first GPU connected to the
+# display and a second (NVidia) GPU providing 3D acceleration, use the first GPU
+# as sink for the second. This may confuse DPI settings, so re-set those.
+if [ "${NVIDIA_DIRECT}" ]; then
+ xrandr --setprovideroutputsource modesetting NVIDIA-0
+ xrandr --auto
+ xrandr --dpi 96
+fi
+
# Launch window manager.
i3 -c ~/.i3