Hi, If I boot with AC plugged in the /sys/class/power_supply/BAT0/ directory is populated with charge_*, but if I boot on battery the directory is populated with energy_*. Disconnecting/connecting the power after boot does not effect the file names. Is this likely to be an issue with thinkpad-acpi? While investigating this I noticed the following in dmesg when I (dis)connect AC power. [ 1652.581659] thinkpad_acpi: unknown possible thermal alarm or keyboard event received [ 1652.581673] thinkpad_acpi: unhandled HKEY event 0x6040 [ 1652.581680] thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx [ 1652.582586] thinkpad_acpi: EC reports that Thermal Table has changed I am running Arch on an X220: Linux jamie-laptop 3.1.5-1-ARCH #1 SMP PREEMPT Sat Dec 10 14:43:09 CET 2011 x86_64 Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz GenuineIntel GNU/Linux This is what I get when I load thinkpad-acpi [ 1812.181747] thinkpad_acpi: ThinkPad ACPI Extras v0.24 [ 1812.181750] thinkpad_acpi: http://ibm-acpi.sf.net/ [ 1812.181752] thinkpad_acpi: ThinkPad BIOS 8DET54WW (1.24 ), EC unknown [ 1812.181754] thinkpad_acpi: Lenovo ThinkPad X220, model 4287CTO [ 1812.182235] thinkpad_acpi: detected a 8-level brightness capable ThinkPad [ 1812.182380] thinkpad_acpi: radio switch found; radios are enabled [ 1812.182523] thinkpad_acpi: possible tablet mode switch found; ThinkPad in laptop mode [ 1812.183984] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked [ 1812.184366] Registered led device: tpacpi::thinklight [ 1812.184456] Registered led device: tpacpi::thinkvantage [ 1812.184464] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one [ 1812.184593] thinkpad_acpi: Console audio control enabled, mode: monitor (read only) [ 1812.185674] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input17 Cheers, Jamie ------------------------------------------------------------------------------ Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel