It's a Skylake machine, and it's been working great. I'm using Debian Testing with the kernel pulled from Sid (necessary to get the wifi working).
Powertop output is:
Package | Core | CPU 0 CPU 2
| | C0 active 6.7% 3.9%
| | POLL 0.1% 0.2 ms 0.0% 0.0 ms
| | C1E-SKL 5.5% 0.2 ms 1.3% 0.2 ms
C2 (pc2) 9.7% | |
C3 (pc3) 2.2% | C3 (cc3) 2.5% | C3-SKL 3.2% 0.3 ms 0.4% 0.2 ms
C6 (pc6) 4.1% | C6 (cc6) 7.0% | C6-SKL 8.0% 0.3 ms 8.4% 0.7 ms
C7 (pc7) 0.0% | C7 (cc7) 28.7% | C7s-SKL 0.0% 0.1 ms 0.0% 0.7 ms
C8 (pc8) 12.1% | | C8-SKL 29.4% 1.9 ms 60.5% 2.3 ms
C9 (pc9) 0.0% | | C9-SKL 0.0% 0.0 ms 0.0% 1.3 ms
C10 (pc10) 0.0% | | C10-SKL 4.3% 3.6 ms 14.6% 4.1 ms
| Core | CPU 1 CPU 3
| | C0 active 5.2% 4.4%
| | POLL 0.0% 0.0 ms 0.0% 0.2 ms
| | C1E-SKL 1.5% 0.2 ms 1.5% 0.3 ms
| |
| C3 (cc3) 0.6% | C3-SKL 0.7% 0.2 ms 0.7% 0.2 ms
| C6 (cc6) 14.7% | C6-SKL 10.8% 0.7 ms 13.8% 0.8 ms
| C7 (cc7) 52.0% | C7s-SKL 0.1% 1.1 ms 0.0% 0.4 ms
| | C8-SKL 59.6% 2.1 ms 59.8% 1.8 ms
| | C9-SKL 0.0% 0.0 ms 0.0% 0.0 ms
| | C10-SKL 9.7% 4.4 ms 8.4% 3.5 ms
| GPU |
| |
| Powered On 13.2% |
| RC6 86.8% |
| RC6p 0.0% |
| RC6pp 0.0% |
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As far as I can see, this seems to imply C8 is working fine?