Date: Thu, 28 Mar 2019 08:53:49 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 236513] HP Thin clients T620/T730 ACPI: Only CPU core 0 detects C2 state Message-ID: <bug-236513-227-49o4yTpt20@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-236513-227@https.bugs.freebsd.org/bugzilla/> References: <bug-236513-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236513 --- Comment #35 from stockhausen@collogia.de --- Phew, I see you found the culprit. Although I do not know every single function I saw a lot of the names during my code analysis. Regarding HP T620 settings: cpucontrol -m 0xC0010073 /dev/cpuctl0 gives 0x413 (The CPU gets Port+1 from BIOS). So the ACPI tables need: For T620: IO (Decode16, 0x0413, // Range Minimum 0x0413, // Range Maximum 0x00, // Alignment 0x08, // Length ) For T730: IO (Decode16, 0x1770, // Range Minimum 0x1770, // Range Maximum 0x00, // Alignment 0x08, // Length ) With these settings C2 states come up fine on both machines. I will check if all of this hard work at least gives some power saving effects. -- You are receiving this mail because: You are the assignee for the bug.
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