Date: Tue, 24 Jun 2003 18:12:29 +0200 From: Gunnar Flygt <flygt@sr.se> To: "Michael W. Oliver" <michael@gargantuan.com> Cc: freebsd-mobile@freebsd.org Subject: Re: ACPI thermal _ACx values Message-ID: <20030624161229.GA97355@sr.se> In-Reply-To: <200306241120.56997.michael@gargantuan.com> References: <200306241120.56997.michael@gargantuan.com>
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On Tue, Jun 24, 2003 at 11:20:56AM -0400, Michael W. Oliver wrote: > Here is the problem. When I boot up, everything is working fine, and the > following sysctl is set as follows: > > hw.acpi.thermal.tz0._ACx: 3351 -1 -1 -1 -1 -1 -1 -1 -1 -1 (3351 - 2732) / 10 = 61.9 degrees Centigrade So that's the temperature your system CPU is at. > > Ok, this is fine, except that sometimes the first value isn't 3351. I have > seen 3331 and 3341, too. Is that a big deal? And, how is this value set? > > Now, on to the problem. When I suspend the machine (S1), and then wake it > back up again, the first value is changed to -1, just like the other nine > values, yielding: > > hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 > > So, if I try to change the value back to 3331, I find out that this is a > read-only oid. I found that I can get the value restored by disconnecting > the AC power (putting the machine in 'economy' mode) and then restoring the > AC power (putting the maching back into 'performance' mode). > > I turned on verbose ACPI logging and here is what I see in the message log: > > acpi_tz0: _AC9: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: _AC8: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: _AC7: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: _AC6: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: _AC5: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: _AC4: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: _AC3: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: _AC2: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: _AC1: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: _AC0: temperature 61.9 >= setpoint -273.-2 > acpi_tz0: switched from NONE to _AC0: 61.9C > acpi_tz0: WARNING - current temperature (61.9C) exceeds system limits > acpi_tz0: _AC0: temperature 62.9 >= setpoint 61.9 > acpi_tz0: switched from NONE to _AC0: 62.9C > acpi_tz0: switched from _AC0 to NONE: 59.9C > acpi_tz0: _AC0: temperature 61.9 >= setpoint 61.9 > acpi_tz0: switched from NONE to _AC0: 61.9C > acpi_tz0: switched from _AC0 to NONE: 55.9C > > Do I have anything to fear in the -1 value that replaces the 3351 when > waking up from suspend? > > I have searched high and low and found very little information. Thanks in > advance for your replies, they are much appreciated. > > -- > +-------------------------------------+------------------------------+ > | Michael W. Oliver, CCNP | "The tree of liberty must be | > | IPv6 & FreeBSD mark | refreshed from time to time | > | michael@gargantuan.com | with the blood of patriots | > | http://michael.gargantuan.com/ | and tyrants." | > | ASpath-tree, Looking Glass, etc. | - President Thomas Jefferson | > | +------------------------------+ > | gpg key - http://michael.gargantuan.com/gnupg/pubkey.asc | > +--------------------------------------------------------------------+ > > > > _______________________________________________ > freebsd-mobile@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-mobile > To unsubscribe, send any mail to "freebsd-mobile-unsubscribe@freebsd.org" -- Gunnar Flygt OPC Data Sveriges Radio
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