How does operating system changes its display between chipsets and dedicated video cards?
How to Configure Laptop Switchable Graphics
how to do that in ubuntu?
i recommend asking that in ubuntu forums or linux forums..
You would add the necessary switch in Grub and/or in xorg files. There are various apps and methods already documented on askubuntu.com.
HP Notebook PCs - Switchable Graphics on Notebooks Configured with Intel and ATI GPUs | HP® Customer Support
glad to see that you have found the correct answer to your question. In order to help others with a similar problem to find this answer quickly, we have locked the discussion to keep it focused on the issue you reported.
Retrieving data ...