Hi, > > The only thing I really need now is a stable cpu fan. Can I somehow lock > > it to maximum speed or something similar? Can I somehow run w83627ehf > If you disable Q-Fan in the BIOS, that's what should happen. Ok. > Did you try without the w83627ehf driver loaded? What makes you believe > that the w83627ehf driver is responsible for your problem? This might > as well be an ACPI issue. I did not try unloading the driver permanently, because this would effectively prevent me from monitoring temperature and fan speed and would therefore not notice a temperature increase. There are two things that made me believe w83627ehf is responsible: 1) It is possible to change the fan behaviour using this driver. 2) This is very unreliable. (see below) I did not think about this having to do with ACPI, but it sounds reasonable. Compiling dsdt.dsl again results in tons of errors (below). > > echo 255 > pwm2 > Note that the value written to pwm2 has no effect when pwm2_enable = 2, > so there's nothing you can hope from this step. Even with pwm2_enable = 1 the setting often does not change (nondeterministically). That's the reason for doing these echos in a loop: Hoping that a value will eventually change. > > echo 1000 > pwm2_target > This is setting the target temperature to 1 degree C. That doesn't make > any sense to me, as there is the way the chip can achieve this. On top > of that, this setting is only valid fir pwm2_enable = 2, which isn't > the case at this point. What makes even less sense is taht pwm2_target only accepts two values: 1000 and 127000. Other values I tried simply do not change the contents of the file. Theoretically the fan should stop after the following. echo 1 > pwm2_enable echo 0 > pwm2 This works only in very rare occasions. Values written to pwm2 seem to only sometimes change the value. Helmut root@# iasl -tc dsdt.dsl Intel ACPI Component Architecture ASL Optimizing Compiler version 20061109 [May 15 2007] Copyright (C) 2000 - 2006 Intel Corporation Supports ACPI Specification Revision 3.0a dsdt.dsl 410: Method (\_WAK, 1, NotSerialized) Warning 1079 - ^ Reserved method must return a value (_WAK) dsdt.dsl 452: Store (Local0, Local0) Error 4049 - ^ Method local variable is not initialized (Local0) dsdt.dsl 460: Store (Local0, Local0) Error 4049 - ^ Method local variable is not initialized (Local0) dsdt.dsl 786: Method (GHTF, 0, NotSerialized) Warning 1086 - ^ Not all control paths return a value (GHTF) dsdt.dsl 1697: Store (Local0, Local0) Error 4049 - ^ Method local variable is not initialized (Local0) dsdt.dsl 1702: Store (Local0, Local0) Error 4049 - ^ Method local variable is not initialized (Local0) dsdt.dsl 1707: Store (Local0, Local0) Error 4049 - ^ Method local variable is not initialized (Local0) dsdt.dsl 2198: Method (STM, 0, Serialized) Warning 1086 - ^ Not all control paths return a value (STM_) dsdt.dsl 2757: Method (STM, 0, Serialized) Warning 1086 - ^ Not all control paths return a value (STM_) dsdt.dsl 3864: Method (RVLT, 1, NotSerialized) Warning 1086 - ^ Not all control paths return a value (RVLT) dsdt.dsl 3934: Method (RTMP, 1, NotSerialized) Warning 1086 - ^ Not all control paths return a value (RTMP) dsdt.dsl 4111: Store (GHTF (), Local1) Warning 1091 - ^ Called method may not always return a value dsdt.dsl 4156: Method (OCOP, 1, NotSerialized) Warning 1086 - ^ Not all control paths return a value (OCOP) dsdt.dsl 4182: Store (GHTF (), Local1) Warning 1091 - ^ Called method may not always return a value dsdt.dsl 5963: Method (_STA, 0, NotSerialized) Warning 1086 - ^ Not all control paths return a value (_STA) dsdt.dsl 5963: Method (_STA, 0, NotSerialized) Warning 1079 - ^ Reserved method must return a value (_STA) dsdt.dsl 6035: Method (_PRS, 0, NotSerialized) Warning 1086 - ^ Not all control paths return a value (_PRS) dsdt.dsl 6035: Method (_PRS, 0, NotSerialized) Warning 1079 - ^ Reserved method must return a value (_PRS) dsdt.dsl 6111: Method (_STA, 0, NotSerialized) Warning 1086 - ^ Not all control paths return a value (_STA) dsdt.dsl 6111: Method (_STA, 0, NotSerialized) Warning 1079 - ^ Reserved method must return a value (_STA) dsdt.dsl 6166: Method (_PRS, 0, NotSerialized) Warning 1086 - ^ Not all control paths return a value (_PRS) dsdt.dsl 6166: Method (_PRS, 0, NotSerialized) Warning 1079 - ^ Reserved method must return a value (_PRS) dsdt.dsl 6293: Method (_PRS, 0, NotSerialized) Warning 1086 - ^ Not all control paths return a value (_PRS) dsdt.dsl 6293: Method (_PRS, 0, NotSerialized) Warning 1079 - ^ Reserved method must return a value (_PRS) dsdt.dsl 6429: Method (_PRS, 0, NotSerialized) Warning 1086 - ^ Not all control paths return a value (_PRS) dsdt.dsl 6429: Method (_PRS, 0, NotSerialized) Warning 1079 - ^ Reserved method must return a value (_PRS) dsdt.dsl 6475: Method (_CRS, 0, NotSerialized) Warning 1086 - ^ Not all control paths return a value (_CRS) dsdt.dsl 6475: Method (_CRS, 0, NotSerialized) Warning 1079 - ^ Reserved method must return a value (_CRS) ASL Input: dsdt.dsl - 8614 lines, 278641 bytes, 3542 keywords Compilation complete. 5 Errors, 23 Warnings, 0 Remarks, 1099 Optimizations root@#
