Public bug reported:
This happens on a Dell Latitude E6540 (4th gen core i7 CPU).
Steps to reproduce:
1) normally boot the computer and make sure everything works as expected (i
use the ondemand governor)
2) suspend
3) make the computer is unplugged and resume
Expected behavior: cpu should work normally
Actual behavior: cpu always stays at minimum frequency (in my case 800 MHz)
If i resume from suspend while plugged to the AC charger, everything
works as expected.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1260112
Title:
CPU stuck on minimum frequency after resume from suspend and unplugged
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