[SOLVED] [split] Missing HPET clocksource option

[hkphantomgtr]

tsc acpi_pm

So it looks like you only have the above two as your clock source. I believe TSC is pretty good as well, so that's worth a try

And I've emailed the diagnostic file to the specific email a/c.  Please take your time. 

See this in the system logs:
 

Code:

hpet: HPET dysfunctional in PC10. Force disabled.

Look in your ACPI or power saving and see if you can disable PC10 state, play around with CPU states and see if you can disable just that, failing that you might need to disable power saving entirely Doing so should get HPET back after a reboot. Let me know how it goes.

Thanks, AK!  You're right.  After disabling the power control setting (disabling "Dynamic Power Technology" , or mainly "OS ACPI C2 Report"), my HPET is back, at the expense of lower temperature, and the low latency value.  I really like the HPET sound as the sound is more vivid, with better focus, much better transition, more "on-beat", and denser texture.   In short, more holographic.

To further my findings, with the same CMOS setting, after changing to "TSC" clocksource, the latency becomes as good as before.  huh.... so, with my new NUC, seems the CMOS setting doesn't affect the latency, but the choice of "clocksource".

And last night, in a second thought, it's quite strange to me that, even in the default CMOS setting, including HPET is enabled, the Snakeoil OS can't use HPET, or the system/hardware can't use HPET with the CMOS default power management setting...... so where is the problem?