Le 27.08.2012 08:44, Mike Manilone a écrit : > Hi all, > > I just switched from Fedora Linux to FreeBSD. But I noticed a problem, > the CPU temperature will be very high when the load is high. > Especially while I am building C++ programs. It shut down for even 3 > times while I was building Firefox/Thunderbird, just because of high > temperature (86.5C). > > One of my friends told me, "FreeBSD doesn't support your ACPI well" > but I noticed that while I'm not compiling ports, the temperature will > be not too high. > > Just now I'm building LLVM, here's what I've seen: > > > sysctl hw.acpi.thermal.tz0.temperature > hw.acpi.thermal.tz0.temperature: 84.5C > > pkill make > > sysctl hw.acpi.thermal.tz0.temperature > hw.acpi.thermal.tz0.temperature: 67.5C > > I'm using Dell Vostro 3400 laptop PC with FreeBSD 9.1-RC1. > > uname -a > FreeBSD bsd.laptop.mike 9.1-RC1 FreeBSD 9.1-RC1 #0: Tue Aug 14 > 04:25:06 UTC 2012 > r...@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 > > There's my dmesg message: http://slexy.org/view/s21b7xTTsu > > Anyone knows how to fix this problem? Thank you. > > Yours Sincerely, > Mike Manilone > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
Hello, I used to have the same problem with my laptop (i5) and this can be fixed by lowering the temperature threshold for passive cooling. (_PSV) hw.acpi.thermal.user_override=1 hw.acpi.thermal.tz0._PSV=80C You should try to adjust _PSV to be significantly lower (> 15-20C) than the _CRT (critical shutdown temp) so that _CRT is never reached. Christian _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
