I couldn’t find much information about keyboard shortcuts for Compiz effects in Ubuntu 10.04. I poked through the default Compiz configuration and found some I didn’t know about, and some that have changed from previous versions of Ubuntu.
Some of the following keyboard shortcuts will not work at all if Compiz (visual effects) if turned off.
- Ctrl + Alt + Left/Right/Up/Down arrow – move to the workspace in the given direction
- Ctrl + Alt + Shift + Left/Right arrow – move the current window to the workspace in the given direction
- Super + E - “expo” effect, shows all workspaces (move windows with left mouse button, zoom to a workspace with right mouse button)
- Super + W – “scale” effect, shows all windows in current workspace (left click selects window, middle click closes window, right click zooms window)
- Super + A – “scale” effect, shows all windows
- Alt + F10 – toggle maximize current window
- Alt + F9 – minimize current window
- Ctrl + Alt + D – toggle show desktop
- Alt + Middle mouse button – resize window
- Alt + Left mouse button – move window
- Alt + Right mouse button – window menu
- Alt + F7 – move current window (without holding down mouse button)
- Alt + F8 – resize current window (without holding down mouse button)
- Alt + Tab – switch windows on current workspace
- Ctrl + Alt + Tab – switch windows on all workspaces
- Super + Mouse wheel scroll – zoom screen
- Super + Middle mouse button – draw rectangle to zoom to
- Super + N – invert colours of current window
- Super + M – invert colours of screen (Compiz is configured for this shortcut, but the messaging indicator seems to have taken it over so it doesn’t work)
Ubuntu Community Documentation has more on keyboard shortcuts (although some of it is outdated now for Ubuntu 10.04). You can view and change some shortcuts using System->Preferences->Keyboard Shortcuts.