So i have gotten a t490 just recently, and ive installed fedora on it, gnome power profiles daemon said it was “on my lap” and wouldn’t let me change the power profiles even when on a desk. So i masked that, and installed auto-cpufreq, but the laptop still draws about 10W (according to powertop) when watching a youtube video, leading to 4-5 hours of battery life.
any tips on how to reduce the power consumption?
While I think that 5h of battery life with yt videos running is ok for a t490 you could still try to recalibrate the battery with tlp.
I have a t470s (has two internal batteries) where suddenly the performance of one of the batteries somehow got really bad. After calibration it works as good as before (upower says it’s at about 80%). I did the calibration in windows tho with Lenovo vantage as I’m still running a dual boot setup and didn’t know about tlp before.