Comment 28 for bug 1087534

Temporary workaround to get acceptable experience while being affected by this bug (assuming default wallpaper is set. Most of this has already been written here except for bullet 5):
1. install ccsm tool:
sudo apt-get install compizconfig-settings-manager
2. run ccsm tool:
ccsm
3. Search for unity and select it from central panel
4. Switch Dash Blur option to "No Blur"
5. in Background Color panel, set Color Name to #591718 and Opacity to 248 (you may adjust these values to your liking, especially the color name if your use a different wallpaper)
6. Close ccsm and try out your dash