--- acpi_osi removed from kernel parameters in grub --- Hotkeys still not working, brightness applet working.
By https://wiki.ubuntu.com/Kernel/Debugging/Backlight I am in the following situation: "Backlight control works through the brightness applet but not via hotkeys." Thereafter following the link on debugging hotkeys https://wiki.ubuntu.com/Hotkeys/Troubleshooting Results from step-by-step troubleshooting: - Nothing registered with xev when pressing fn+f5/f6 (backlight down/up) - Nothing registered with evtest when pressing fn+f5/f6 - Nothing registered with acpi_listen when pressing fn+f5/f6 (other fn-key functions such as turning off the touchpad are registered) Also, please find the files produced by commands under "Useful Information to Collect in Reports" attached. --- WORKAROUND in https://wiki.ubuntu.com/Kernel/Debugging/Backlight --- Booting with only acpi_backlight=vendor, adjusting the brightness through the applet stops working as well. The brightness changes when executing "echo 8 > /sys/class/backlight/intel_backlight/brightness". Booting with only video.use_bios_initial_backlight=0, brightness applet works, but not the brightness hotkeys. Booting with only acpi_osi=, neither applet nor hotkeys work. Booting with only video.use_native_backlight=1, applet works but not hotkeys. Also, please find vendorbacklight and lslabacklight files attached. --- Kernel v4.5-rc4-wily --- Problem still exists -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492137 Title: Brightness keys (fn+f5/f6) not working, UX305FA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1492137/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
