Messages in this thread | | | From | "Brown, Len" <> | Subject | RE: C1E auto-promotion suspend/resume | Date | Mon, 14 Mar 2016 04:31:36 +0000 |
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> By BIOS (1.2.3 on a Dell XPS 13 9350) seems to want to enable C1E > auto-promotion (ugh!), which results in this difference across > suspend/resume according to turbostat: > > -cpu3: MSR_IA32_POWER_CTL: 0x0024005d (C1E auto-promotion: DISabled) > +cpu3: MSR_IA32_POWER_CTL: 0x0024005f (C1E auto-promotion: ENabled) > > Should intel_idle learn to re-disable idle promotion on resume?
Yes, it seems that way.
Go ahead and send a patch, or file a bug at bugzilla.kernel.org and we'll get to it.
thanks, -len
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