Date: Wed, 26 Nov 2003 23:14:02 +0100 (CET) From: Lukas Ertl <l.ertl@univie.ac.at> To: Nate Lawson <nate@root.org> Cc: current@freebsd.org Subject: Re: Updated acpi_cpu patch Message-ID: <20031126231101.Y681@korben.in.tern> In-Reply-To: <20031126124250.N94663@root.org> References: <20031118094821.T64353@root.org> <20031118221008.U621@korben.in.tern> <20031118131708.C64933@root.org> <20031118223352.W634@korben.in.tern> <20031120125407.L414@pcle2.cc.univie.ac.at> <20031121135507.H76145@root.org> <20031121234105.G623@korben.in.tern> <20031126124250.N94663@root.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 26 Nov 2003, Nate Lawson wrote: > It's possible the fan is under BIOS control so make sure you have an > up-to-date bios. If not, you should get a console printout when acpi > switches the fan on. sysctl hw.acpi.thermal Nope, no ACPI messages, and I can't find a FAN device in my ASL. (At least no 'standard' one - anyone knows what hides behind this HKEY device every ThinkPad seems to have?) > You are correct. _PSV is not currently implemented by FreeBSD but I hope > to do it at some point. Once we have all methods of processor control > (cpufreq, Cx, and throttling), we can use them to implement _PSV. In any > case, I think the _PSV value is set high because your platform designer > expects active cooling to be the most effective and passive, since it > slows down performance, is a last resort. Ah, sounds reasonable, thanks for the explaination. regards, le -- Lukas Ertl eMail: l.ertl@univie.ac.at UNIX Systemadministrator Tel.: (+43 1) 4277-14073 Vienna University Computer Center Fax.: (+43 1) 4277-9140 University of Vienna http://mailbox.univie.ac.at/~le/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20031126231101.Y681>