Date: Sun, 18 Apr 2010 08:52:33 +0000 From: Andreas Nilsson <andrnils@gmail.com> To: freebsd-acpi@freebsd.org Subject: C-states on core-i7m Message-ID: <o2me31a2e1004180152oe15684ffxc39e7d0e0ea6f4d@mail.gmail.com>
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Hello, my new laptop has a core-i7 620m and I expected it to have support for C3-state. sysctl dev.cpu.0 dev.cpu.0.%desc: ACPI CPU dev.cpu.0.%driver: cpu dev.cpu.0.%location: handle=\_PR_.CPU0 dev.cpu.0.%pnpinfo: _HID=none _UID=0 dev.cpu.0.%parent: acpi0 dev.cpu.0.freq: 149 dev.cpu.0.freq_levels: 2667/25000 2533/23710 2399/22465 2266/21243 2133/20027 1999/18852 1866/17700 1733/16571 1599/15478 1466/14395 1333/13334 1199/12297 1049/10759 899/9222 749/7685 599/6148 449/4611 299/3074 149/1537 dev.cpu.0.cx_supported: C1/3 C2/245 dev.cpu.0.cx_lowest: C2 dev.cpu.0.cx_usage: 100.00% 0.00% last 500us I've never seen it acutally use even C2. Are lower C-states not supported yet for the core i7 cpus? Regards andrnils
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