I recently installed Fedora 30 for work on my Gigabyte Aero 15X v8. I blacklisted nouveau drivers as I don't need the discrete GPU while working and installed TLD. But even after that, the battery life is around 4-4:30 h versus more than 6 on Windows.

I installed powertop to see what's going on and I saw that this tick_sched_timer was drawing more than half of the laptop's power. Apparently quite a few other people experience it from what I searched, but I coudn't find either an explanation or a solution.

Powertop output

Is it normal ? Or is there something that can be done ?

  • I have the same issue. Did you ever figure it out? – Byron Mansfield Dec 23 '19 at 15:29
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    Kinda... Apparently the power consumption displayed by powertop is a rough estimate and is in this case completely wrong. The global discharge rate is right, but how it is spread between the processes is not. In my case I believe the issue is that the dGPU is still drawing some power, but I didn't have time to look too much into it – Morysh Dec 25 '19 at 10:59

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