Date: Thu, 26 Apr 2007 09:52:52 -0500 From: Eric Anderson <anderson@freebsd.org> To: freebsd-acpi@freebsd.org Subject: CPU temp AC vs Battery Message-ID: <4630BCC4.10601@freebsd.org>
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Hi everyone, I've just noticed something very odd. On my Dell D820 laptop, when running off AC power from boot, by idle CPU temperature sits around 58C. If I unplug the power, and then plug it back in again, it will drop down to around 49-50C within a minute or two. It will stay there. With or without powerd running. Here's some info: # uname -a FreeBSD 7.0-CURRENT FreeBSD 7.0-CURRENT #51: Tue Apr 24 10:24:43 CDT 2007 snip@snip:/usr/obj/usr/src/sys/NEUTRINO i386 # kldstat Id Refs Address Size Name 1 36 0xc0400000 77d33c kernel 2 3 0xc0b7e000 23398 linux.ko 3 1 0xc0ba2000 118dc snd_hda.ko 4 2 0xc0bb4000 3c114 sound.ko 5 1 0xc0bf1000 6d3e68 nvidia.ko 6 1 0xc12c5000 4bb8 atapicam.ko 7 6 0xc12ca000 c6d4 netgraph.ko 8 1 0xc12d7000 79c8 ng_ubt.ko 9 1 0xc12df000 5868 vkbd.ko 10 1 0xc12e5000 1d294 kqemu.ko 11 1 0xc1303000 2ffa4 ipl.ko 12 1 0xc1333000 13544 geom_journal.ko 13 1 0xc1347000 5d420 acpi.ko 14 1 0xc5b02000 6000 linprocfs.ko 15 1 0xc5b33000 e000 ext2fs.ko 16 4 0xc5d27000 2000 ng_bluetooth.ko 17 1 0xc5d29000 c000 ng_hci.ko 18 1 0xc5d35000 e000 ng_l2cap.ko 19 1 0xc5d43000 15000 ng_btsocket.ko 20 1 0xc5d61000 4000 ng_socket.ko 21 1 0xc5e4a000 7000 aio.ko both before and after power plugging: # sysctl dev.cpu 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: 1985 dev.cpu.0.freq_levels: 1985/-1 1736/-1 1488/-1 1240/-1 992/-1 744/-1 496/-1 248/-1 dev.cpu.0.cx_supported: C1/1 C2/1 C3/57 dev.cpu.0.cx_lowest: C1 dev.cpu.0.cx_usage: 100.00% 0.00% 0.00% dev.cpu.1.%desc: ACPI CPU dev.cpu.1.%driver: cpu dev.cpu.1.%location: handle=\_PR_.CPU1 dev.cpu.1.%pnpinfo: _HID=none _UID=0 dev.cpu.1.%parent: acpi0 dev.cpu.1.cx_supported: C1/1 C2/1 C3/57 dev.cpu.1.cx_lowest: C1 dev.cpu.1.cx_usage: 100.00% 0.00% 0.00% Eric
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