Hello ! I own a brand new Lenovo E540 (20C600JHFR) fitted with a full HD LCD screen. I've installed Ubuntu 14.04 LTS and exploring the syslog file for unsupported hardware I've found the following message : ======== thinkpad_acpi: Unsupported brightness interface, please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx [ 11.725474] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver [ 11.725476] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default... ======== I noticed that the brightness control is very coarse instead of the smooth control experienced in Windows How could I help ? Many thanks in advance for your support. Best regards. --- If the only tool you have is a hammer, you tend to see every problem as a nail. Abraham Maslow A British variant : Any tool can serve as a hammer but a screwdriver makes the best chisel. ------------------------------------------------------------------------------ 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
