Laptop battery draining fast after moving to Ubuntu

Question

I used to have Windows 10 on my Lenovo Yoga 730-15" and recently I replaced it with Ubuntu 20.04 LTS.

I see huge fall in discharge time to around one hour. I tried installing powertop and enabling tlp but no luck. Is this some incompatibility with my laptop and Ubuntu? Or, is there any other way I could solve this?

Solution

Is your graphic card, Nvidia? If yes, it can help:

Go to Settings > Details , and see what 'Graphics' is your computer using. If it is Geforce, then open terminal and write

nvidia-settings

On opened window click 'PRIME Profiles' and select 'Intel (Power Saving Mode)'.

Restart your laptop.

Comments

[KayR]

Hey thank you, That helped increase my charge time to two hours from one. It used to be around 3 hours before, can we do better.. ?

[Matt]

thanks this was what I needed, I went from ~3hrs to 8+hrs using this. Could you summarise what the main negatives of this approach? I assume a decrease in performance?

[Atbey]

After this step, I was not able to open nvidia-settings again. 'sudo prime-select on-demand' and restart solved my issue. Note: 'watch -d -n 0.5 nvidia-smi' can be used to monitor GPU.