http://bugzilla.kernel.org/show_bug.cgi?id=9167
------- Comment #62 from [EMAIL PROTECTED] 2008-03-15 08:09 ------- I have a workaround that works for me, with x86_64 2.6.22-14-generic (Ubuntu Gutsy) and 2.6.24-12-generic (Ubuntu Hardy). Here is what I did. 1. I installed BIOS v1.31. I don't know if it is crucial, but the DSDT has been compiled with the Intel rather than the Microsoft compiler and the gibberish in _OSC has gone along with the myriad of warnings and errors in the earlier versions. 2. I turn the fan on by writing 0x4040 to 0x7F6BCEAF in /dev/mem 3. I turn the fan off by writing 0x2828 to 0x7F6BCEAF in /dev/mem The bytes correspond to DTS1 and DTS2 in NVST (from reading the dis-assembled DSDT), the values from which the temperature in /proc/acpi/thermal_zone/TZ01/temperature are derived. I deduce that these locations are supposed to have the temperatures in C for the two CPU cores. Furthermore, since there are no other methods in the DSDT that reference them, I deduce that the Embedded Controller is supposed to update them. Since it must be able to do so in 32 bit mode, perhaps the 64 bit kernel prevents it? -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
