I recently bought the Lenovo 500s-14isk and it came with windows 10 installed. Yesterday, I installed in dual boot mode Elementary OS. Didn't notice anything wrong during the installation, but the backlight keys did not work.
acpi_listen and another one I think it's x-something it doesn't show anything when pressing them. I have been googling ever since, tried everything i could find, nothing worked. Some solutions didn't even let me change the brightness from the settings menu.
So, I tried running some other distros to see if it was an ubuntu problem perhaps. I have run from live usb Mint Cinnamon, Apricity and Elementary.
Every time one boots I get the messages:
[ 0.759639] platform MSFT0101:00: failed to claim resource 1 [ 0.759715] acpi MSFT0101:00: plaftorm device creation failed: -16
I also did a BIOS update Here is screenshot from booting: