Hello, I'm using Arch Linux and my brightness keys aren't working. So I observed dmesg and found following message: [ 6.708315] thinkpad_acpi: ThinkPad ACPI Extras v0.25 [ 6.708319] thinkpad_acpi: http://ibm-acpi.sf.net/ [ 6.708322] thinkpad_acpi: ThinkPad BIOS G1ET93WW (2.53 ), EC unknown [ 6.708324] thinkpad_acpi: Lenovo ThinkPad T430, model 2342CTO [ 6.708983] thinkpad_acpi: Unsupported brightness interface, please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx Can you tell me, which further information are needed, so you can solve my problem? Kernel: Linux T430 3.14.0-4-ARCH #1 SMP PREEMPT Wed Apr 9 21:11:25 CEST 2014 x86_64 GNU/Linux acpi_call: 1.1.0-3 tlp: http://linrunner.de/en/tlp/tlp.html 0.5-2 Regards Jan Hohmann (Sorry, English is not my native language) ------------------------------------------------------------------------------ Is your legacy SCM system holding you back? Join Perforce May 7 to find out: • 3 signs your SCM is hindering your productivity • Requirements for releasing software faster • Expert tips and advice for migrating your SCM now http://p.sf.net/sfu/perforce _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel