- Open Thunderbird on Virtual Desktop 1
- Before the thunderbird window shows change to Virtual Desktop 2
- Notice that both thunderbird and enlightenment are using excessive CPU, and the pager preview is black.
- Swap back to the Virtual Desktop where thunderbird is and notice the CPU drop back to something more normal.
if thunderbird is updating its window all the time then this would happen... and that would be the most logical reason for this to happen... as to update sw has to grab the pixels from x (copy them from xserver to client) and that is not free... :)