Disable overlay scrollbars in Ubuntu Unity

Finally I gave up on using the overlay scrollbars in Unity. It gave a bit of more screen real-estate but it was less practical (almost a pain) to use on my desktop computer compared with the classic scrollbars. The overlay scrollbars may still be good for devices with smaller screen sizes.

To disable this feature, run

sudo su

echo "export LIBOVERLAY_SCROLLBAR=0" > /etc/X11/Xsession.d/80overlayscrollbars

Then restart the machine. Don't know whether just re-login will also work or not.

Update: Just re-login is enough. I tried that on Ubuntu 11.10.

Refs
http://www.flynsarmy.com/2011/04/why-i-hate-unity/