Hi, $ dmesg | grep thinkpad_acpi [ 14.022990] thinkpad_acpi: ThinkPad ACPI Extras v0.25 [ 14.022994] thinkpad_acpi: http://ibm-acpi.sf.net/ [ 14.022996] thinkpad_acpi: ThinkPad BIOS GIET69WW (2.19 ), EC unknown [ 14.022998] thinkpad_acpi: Lenovo ThinkPad X240, model 20AMS21C00 [ 14.025150] thinkpad_acpi: Unsupported brightness interface, please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx [ 14.025290] thinkpad_acpi: radio switch found; radios are enabled [ 14.025598] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver [ 14.025599] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default... [ 14.036265] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked [ 14.036782] thinkpad_acpi: Console audio control enabled, mode: monitor (read only) [ 14.071262] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input10 Brightness control works fine using hardware buttons and via Gnome 3. Is there any other info I can provide? -- Best Regards, Erwin Goslawski ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel