2026-10-29 16:46 UTC
Replies (4)
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@rotopenguin@mastodon.social 2026-10-29 17:07
@joe@f.duriansoftware.com watch -n 5 cat /sys/kernel/debug/pmc_core/package_cstate_show You should have some higher states than C2/C3 ticking up. C6 is good, C8 might be better but isn't mandatory. I have one tablet that just won't do higher saving states with BT on. Maybe it's doing evil shit in smm, idk.
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@rotopenguin@mastodon.social 2026-10-29 17:09
@joe@f.duriansoftware.com i have one N100 tablet that just won't go to PC6 if the bluetooth is on. Computers are dumb.
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@joe@f.duriansoftware.com 2026-10-29 17:47
@nina_kali_nina@tech.lgbt pardon the ping but my fedisearch skills are failing me. i recall you mentioning NetBSD needing a kernel change to unlock all the P-states on one of your CPUs. wondering if something similar is going on here
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@cararemixed@mastodon.social 2026-10-29 21:13
@joe@f.duriansoftware.com Completely different generation but I found some bios settings have a major effect on things for me. In my case BIOS assist mode for the thunderbolt port is a must and then avoiding using it entirely or a system task decides to keep one core hot enough to never lower power states. Might be something you can toggle... I just had to brute force lots of different knobs until I found this.