Hi! I'm using a ThinkPad x121e, and thinkpad_acpi started outputting this after a recent (or maybe not-so-recent) update: ~ → dmesg | grep thinkpad [ 8.407732] thinkpad_acpi: ThinkPad ACPI Extras v0.25 [ 8.407745] thinkpad_acpi: http://ibm-acpi.sf.net/ [ 8.407752] thinkpad_acpi: ThinkPad BIOS 8RET54WW (1.17 ), EC unknown [ 8.407758] thinkpad_acpi: Lenovo ThinkPad X121e, model 3051CTO [ 8.417280] thinkpad_acpi: Unsupported brightness interface, please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx [ 8.420725] thinkpad_acpi: radio switch found; radios are enabled [ 8.420762] thinkpad_acpi: possible tablet mode switch found; ThinkPad in laptop mode [ 8.420787] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver [ 8.420790] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default... [ 8.445935] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked [ 8.448996] thinkpad_acpi: Console audio control enabled, mode: monitor (read only) Brightness control works (at least with the hardware buttons, as I don't know any other way to do it), but since it said “please contact”, I thought I should still do just that :) My kernel is 3.13.5, my distro is Arch. -- Best regards, Aleksejs Popovs Riga, Latvia ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel