Alpha version
Since there is not any Lenovo Power Management in Ubuntu, conservation mode can not be activated in an Ideapad easily. But I created a file that can do so! And it is more user-friendly! I hope you enjoy it.
This file requires you to enter your password because it can only work in root mode. I tested it on my laptop (Lenovo Ideapad z510) and it worked correctly. Please follow the instructions to prevent errors.
Step 1: Please make sure you have the acpi-call-dkms package installed.
Step 2: Extract the file.
Step 3: Open terminal and navigate to the directory that you extracted.
Step 4: Please make the file executable by writing this command in terminal.
chmod +x conservation-modeStep 5: Run the file.
./conservation-mode