hi, i have a lenovo edge e-135 notebook. i run the latest kernel 4.0 rc1 from kernel.org (the first time i built the kernel myself :-) ). i got this message on startup, it says i should contact you: [ 0.700364] thinkpad_acpi: ThinkPad ACPI Extras v0.25 [ 0.700367] thinkpad_acpi: http://ibm-acpi.sf.net/ [ 0.700370] thinkpad_acpi: ThinkPad BIOS HMET67WW (2.07 ), EC unknown [ 0.700374] thinkpad_acpi: Lenovo ThinkPad Edge E135, model 335963G [ 0.700832] thinkpad_acpi: Unsupported brightness interface, please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx [ 0.702323] thinkpad_acpi: radio switch found; radios are enabled [ 0.702379] thinkpad_acpi: possible tablet mode switch found; ThinkPad in laptop mode [ 0.702577] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness [ 0.702606] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver [ 0.702609] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default... [ 0.710579] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked [ 0.711567] thinkpad_acpi: volume: disabled as there is no ALSA support in this kernel [ 0.715485] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input1 but brightness control seems to work (if brightness control is F7, F8 to adjust screen brightness). does this help you? do you need more infos about my system? regards, lukas ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel