Here is what I found on the web about ACPI & Compaq presario 2800 laptops :
form the page http://www.scrye.com/~kevin/presario-2800.html +======================================================================= Seems that the ACPI bios compaq has in the laptop is not right, so the ACPI linux drivers don't see it. In order to get it working, first you need to dump the tables from the bios to something we can edit, using: pacpidump once you have a acpi.asl file, edit it and replace all "*PNP" with "PNP" and change "C11C" to "BAT1" and "C11B" to "BAT2" and "C11A" to "ACAD". Once you have that get the iasl util from intel at: iasl-linux-20020725 and run it on the asl file: iasl -tc -bb -i dsdt.asl This will produce a dsdt.hex file. Apply the following kernel diff to your kernel source: 2800-acpi.patch Recompile and reboot and you should have ACPI support. +======================================================================= I don't really understand the purpose of all the steps, but hope this can help. Sebastien. Le Jeudi 14 Novembre 2002 18:03, Sebastien PAOLACCI a écrit : > > Whilst I still can't make acpi to work on my laptop, there are no problems > at boot for me on a Compaq Presario 2800. > > It seems that compaq laptops ACPI implementation is "non standard", I > always had the message : > +======================================================== > Your computer seems to have a partial ACPI installation. ACPI was > probably enabled, but some of the sub-options were not - you need to > enable at least 'AC Adaptor' and 'Control Method Battery' and then > rebuild your kernel. > +======================================================== > Here are files present in /proc/acpi/ on my laptop. There are no BAT0, BAT1 > or some other things I were talk about in differents forums : > > ac_adapter/ > button/ > power_resource/ > processor/ > thermal_zone/ > alarm > dsdt > event > fadt > info > sleep > > ./ac_adapter/C11A: > state > > ./button/power/PWRF: > info > > ./power_resource/C0CF: > state > > ./power_resource/C140: > state > > ./power_resource/C154: > state > > ./power_resource/C158: > state > > ./power_resource/C15B: > state > > ./power_resource/C164: > state > > ./power_resource/C1D0: > state > > ./power_resource/C1D1: > state > > ./power_resource/C1D2: > state > > ./power_resource/C1D3: > state > > ./processor/C000: > info > limit > performance > power > throttling > > ./thermal_zone/TZ1: > cooling_mode > polling_frequency > state > temperature > trip_points > > ./thermal_zone/TZ2: > cooling_mode > polling_frequency > state > temperature > trip_points > > ./thermal_zone/TZ3: > cooling_mode > polling_frequency > state > temperature > trip_points > > > Hope this can help someone. > > Sebastien >
