For Linux Mint 22.x users on a Laptop 13 Ryzen AI:
Besides battery drain issues while suspended, I also didn’t have screen brightness controls working. I saw another thread about installing linux-generic-hwe-24.04 to get onto 6.11 kernel.
After doing that I am able to control screen brightness and my battery isn’t draining dramatically while I’m suspended. I had my lid closed and laptop unplugged for 10 hours and I’m down around 15%. This is not as good as my 4 year old Thinkpad X1 but good enough that I don’t feel like I have to shutdown every time I’m done using the laptop.
I didn’t see anyone else mention that in this thread so figured someone using Linux Mint might find it helpful.