Date: Tue, 24 Jun 2003 11:20:56 -0400 From: "Michael W. Oliver" <michael@gargantuan.com> To: freebsd-mobile@freebsd.org, freebsd-current@freebsd.org Subject: ACPI thermal _ACx values Message-ID: <200306241120.56997.michael@gargantuan.com>
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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 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 | +--------------------------------------------------------------------+
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