Comment 4 for bug 1579917
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| Buzzing Robot (buzzingrobot) wrote Re: Skylake processor with NVMe drive never reaches low power package states on X1 Carbon gen 4 | #4 |
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0e1f616
(Get the code!)
Seeing much the same with 16.04 on an Intel NUC with a Skylake i5 6260U, and a Samsung 950 NVME, with the default kernel or 4.6-rc7. (I've been tracking the 4.6 RC's and this behavior has been apparent in each.)
Running powertop with no tuning option shows all usage confined to C2 (pc2).
Running powertop with the autotune option ("powertop --auto-tune") results in usage spread out among pc2, pc3, and, occasionally, pc7. PC8 and lower are never reached.