To fix; we need to edit the Conky's config file a.k.a. .conkyrc file
Replace own_window_type override with following lines:
own_window_type normal
...
You might add this line if your script did not have it.
own_window_argb_visual yes
...
Finish? then
killall conky
then execute conky again, now it should display the graphics
Reference: http://askubuntu.com/a/139867
Bonus, nice conky theme
- http://www.unixmen.com/conky_5-and-conky_2-another-2-nice-themes-for-conky/
- http://www.unixmen.com/configure-conky-lua-in-ubuntu-11-10-12-04-fedora-debian-and-linuxmint-howto-conky/