Request for HP laptop and desktop owners

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Request for HP laptop and desktop owners

Postby 67GTA on Sun Oct 26, 2008 1:45 pm

If you have a HP laptop or PC with Vista pre-installed, please do the following:

After a normal boot run
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dmesg
in a terminal and save it as dmesg1. Then boot again and add this to your boot options
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acpi_osi="Linux"
Then run dmesg again and save it as dmesg2. Please compare any differences between the files and post them here. An easy way to compare is to use
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diff
in a terminal.
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diff <path_to_dmesg1> <path_to_dmesg2>
Also check the output before and after of these commands to see if anything changes:

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cat /proc/acpi/thermal_zone/THRM/trip_points

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cat /proc/acpi/thermal_zone/THRM/temperature

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cat /proc/acpi/fan/FAN/state


It seems that HP codes the DSDT to detect Vista, VistaSP1, VistaSP2, etc & Linux and treats them differently when detected. This is coded automatically in Vista, but for Linux, the acpi_osi="Linux" option has to be added to the boot options. By adding this to my HP laptop and desktop with Opensuse, acpi thermal is populated where it wasn't before. I'm curious to see if it has the same effects in Mint.
"The only thing necessary for the triumph of evil is for good men to do nothing." Edmund Burke
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67GTA
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