I've ran into this bug also. Karmic Koala, Tango icon theme, no suspend icon. Solved it this way:
- sudo mkdir -p /usr/share/icons/Tango/48x48/apps
- sudo ln -s /usr/share/gnome-power-manager/icons/hicolor/48x48/actions/gpm-suspend.png /usr/share/icons/Tango/48x48/apps/sleep.png
I've ran into this bug also. Karmic Koala, Tango icon theme, no suspend icon. Solved it this way: icons/Tango/ 48x48/apps gnome-power- manager/ icons/hicolor/ 48x48/actions/ gpm-suspend. png /usr/share/ icons/Tango/ 48x48/apps/ sleep.png
- sudo mkdir -p /usr/share/
- sudo ln -s /usr/share/