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Description of problem:
Since at least after RHEL 7.3 I'm seeing powertop service failing to start:

# systemctl status powertop.service    
● powertop.service - PowerTOP autotuner
   Loaded: loaded (/usr/lib/systemd/system/powertop.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Mon 2016-11-07 15:57:25 EET; 4min 36s ago
  Process: 962 ExecStart=/usr/sbin/powertop --auto-tune (code=exited, status=1/FAILURE)
 Main PID: 962 (code=exited, status=1/FAILURE)

Nov 07 15:57:25 host systemd[1]: Starting PowerTOP autotuner...
Nov 07 15:57:25 host powertop[962]: Loaded 10 prior measurements
Nov 07 15:57:25 host powertop[962]: Error opening terminal: unknown.
Nov 07 15:57:25 host systemd[1]: powertop.service: main process exited, code=exited, status=1/FAILURE
Nov 07 15:57:25 host systemd[1]: Failed to start PowerTOP autotuner.
Nov 07 15:57:25 host systemd[1]: Unit powertop.service entered failed state.
Nov 07 15:57:25 host systemd[1]: powertop.service failed.

Version-Release number of selected component (if applicable):
powertop-2.3-11.el7.x86_64

Thanks for the report, it seems to be an regression. Strange that it hasn't been caught by QE.

Created attachment 1218465 [details]
Updated patch

Updated patch, that caused the regression.

Scratch build for testing:
http://people.redhat.com/jskarvad/rhbz1392438/

(In reply to Jaroslav Škarvada from comment #5)
> Scratch build for testing:
> http://people.redhat.com/jskarvad/rhbz1392438/

Thanks, with this the service starts up again as expected.

I was hit by this issue as well. When can the update be expected for RHEL7?

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:2184