I own a MSI GE62 6QD with a 6700HQ and had to totally disable CSTATES in bios to boot (even intel_idle.max_cstate=x).
Upgraded bios with ucode 0x84, kernel 4.4.6 couldn't boot at all. Kernel 4.6.0rc3 boots and powertop tells me my system stays most of it's time in pc3 and cc7.
Package | Core | CPU 0 CPU 4 | | C0 active 2,2% 0,1% | | POLL 0,0% 0,0 ms 0,0% 0,0 ms | | C1E-SKL 0,2% 0,2 ms 0,0% 0,0 ms C2 (pc2) 9,6% | | C3 (pc3) 71,6% | C3 (cc3) 0,4% | C3-SKL 0,7% 0,6 ms 0,0% 0,0 ms C6 (pc6) 0,0% | C6 (cc6) 8,6% | C6-SKL 9,1% 1,4 ms 0,0% 0,0 ms C7 (pc7) 0,0% | C7 (cc7) 84,1% | C7s-SKL 74,9% 1,8 ms 3,5% 6,3 ms C8 (pc8) 0,0% | | C9 (pc9) 0,0% | | C10 (pc10) 0,0% | | C10-SKL 10,5% 2,6 ms 94,9% 35,7 ms
Anyone knows how to go deeper than pc3 or is this a new artificial kernel limitation for skylake so linux can boot ? Thanks :)
Skylake w/ ucode 0x84 + kernel 4.6rc3
Upgraded bios with ucode 0x84, kernel 4.4.6 couldn't boot at all.
Kernel 4.6.0rc3 boots and powertop tells me my system stays most of it's time in pc3 and cc7.
Package | Core | CPU 0 CPU 4
| | C0 active 2,2% 0,1%
| | POLL 0,0% 0,0 ms 0,0% 0,0 ms
| | C1E-SKL 0,2% 0,2 ms 0,0% 0,0 ms
C2 (pc2) 9,6% | |
C3 (pc3) 71,6% | C3 (cc3) 0,4% | C3-SKL 0,7% 0,6 ms 0,0% 0,0 ms
C6 (pc6) 0,0% | C6 (cc6) 8,6% | C6-SKL 9,1% 1,4 ms 0,0% 0,0 ms
C7 (pc7) 0,0% | C7 (cc7) 84,1% | C7s-SKL 74,9% 1,8 ms 3,5% 6,3 ms
C8 (pc8) 0,0% | |
C9 (pc9) 0,0% | |
C10 (pc10) 0,0% | | C10-SKL 10,5% 2,6 ms 94,9% 35,7 ms
Anyone knows how to go deeper than pc3 or is this a new artificial kernel limitation for skylake so linux can boot ?
Thanks :)