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Talk:Ibm-acpi
From ThinkWiki
ThinkPad sensors in GNOME Sensors Applet
For anyone interested, I have written a patch for the GNOME Sensors Applet to add support for ThinkPads. Maybe that could be added to the Applications support section once it's committed in mainstream.
--Micampe 14:59, 5 Dec 2005 (CET)
Nice work. But there sensor names are model-dependent and wrong on newer models, and there are three extra sensors (on new models) that it doesn't show. See the discussion here and the table at the top of this script.
--Thinker 15:52, 5 Dec 2005 (CET)
I know, I'm following the discussion. That is my first C code in some years, so I settled for the easy task and I only read /proc/acpi/ibm/thermal and fan, w/o parsing ecdump. Also, the values I'm reading seems to be correct acress different models (I have an R52), except maybe for the hard drive.
--Micampe 19:24, 5 Dec 2005 (CET)
I have a ThinkPad X32 and I wonder if someone knows the location of the thermal sensors shown in ibm_acpi "/proc/acpi/ibm/thermal". I really doesn't match the description in ibm_acpi README...
--128.178.84.81 14:12, 17 January 2006 (CET)
See Thermal sensors. Maybe your layout is closer to one of the other models there.
--Thinker 17:34, 17 January 2006 (CET)
Hi, I've got problems with ibm_acpi 0.12a after suspend-to-disk (using suspend2-2.2-rc15 for kernel 2.6.14). No acpi avents are recognized anymore. Does anyone know a solution?
--Whoopie 12:48, 14 February 2006 (CET)
It appears that ACPI is completely broken on Thinkpad T20 and T21s. Considering v1.01 of its BIOS came out in September 2000, this isn't surprising (as BIOS's before 2001 had lots of problems with ACPI.) If ACPI is enabled on a Thinkpad T20 with a 2.6.15 kernel, the result is this:
root 5037 0.0 0.0 0 0 ? S< Oct22 0:00 [kacpid-work-0] root 5171 0.0 0.0 0 0 ? D< Oct22 0:00 [kacpid-work-1] root 5172 0.0 0.0 0 0 ? D< Oct22 0:00 [kacpid-work-2] root 5173 0.0 0.0 0 0 ? D< Oct22 0:00 [kacpid-work-3] root 5176 0.0 0.0 0 0 ? D< Oct22 0:00 [kacpid-work-4] root 5177 0.0 0.0 0 0 ? D< Oct22 0:00 [kacpid-work-5] root 5507 0.0 0.0 0 0 ? D< Oct22 0:00 [kacpid-work-6] root 5566 0.0 0.0 0 0 ? D< Oct22 0:00 [kacpid-work-7] root 5626 0.0 0.0 0 0 ? D< Oct22 0:00 [kacpid-work-8] root 5627 0.0 0.0 0 0 ? D< Oct22 0:00 [kacpid-work-9] 09:18:39 up 17:50, 2 users, load average: 13.94, 12.48, 11.30
The machine starts grinding its hard disk like mad. Can anyone else with a T20 or T21 confirm that ACPI is utterly hopeless and broken on theirs? I know these laptops are a bit long in the tooth by now.
The only solution was to set acpi=off and apm=on for the linux kernel and reboot. After that, the machine seems to be functioning just fine. --Fialar 20:03, 18 January 2007 (CET)
