I have AMD RADEON graphics in my laptop. As I was using windows 10, I had inbuilt as well as third party softwares for switching between intel and Amd graphics for different applications/games. Is there similar software available for Ubuntu? Even Amd website is not giving proper software for switching for Ubuntu as it was giving Crismon tool on windows.
All you have to do is add
DRI_PRIME=1 before the command of whatever you want to run using your dedicated Radeon GPU, so for example you can run Steam using
DRI_PRIME=1 steam, and all of you games should use the Dedicated GPU.
If that does not work, then you might need to install
switcheroo-control (I had to do that too) using
sudo apt install switcheroo-control. This will also add an option to run using dedicated GPU from the right-click drop down menu in GNOME, so for example you can choose the dedicated GPU for Steam from the application menu > right-click Steam > "Launch using Dedicated Graphics Card":
If your steam games still use the integrated GPU after all of that (which they shouldn't), then you might need to enter
DRI_PRIME=1 %command% to each game in their Launch Options. More on that here.