Thought I’d better update the old FN key tutorials to reflect recent changes..
Part 1 – You do not need to install the sony_acpi software anymore, as the new fsfn software doesn’t use it.
Part 3 – All should work the same.
Not tested this myself yet, as the new .deb file works fine on my laptop. I’m aware however that a lot of people who come to the site use this tutorial on other models of laptop, so I thought I’d better update it to try and help them out a bit. Please let me know if it all works ok 🙂