Sometimes when playing flash videos (YouTube, for example) under Ubuntu 12.04 Precise Pangolin, a false color representation may appear on the video consisting of a blue color. In this tip, we will see a solution that may help you fix this problem. If you have more solutions, you can mention them below.
Close all running applications and web browsers, then open the terminal and run the following commands:
sudo mkdir /etc/adobe
sudo sh -c "echo 'EnableLinuxHWVideoDecode=1\nOverrideGPUValidation=true' > /etc/adobe/mms.cfg"
The blue color should now go.