On Fri, 25 Nov 2016, Celejar wrote: > applications and a few things from backports. I'm currently running > kernel 4.7.0-0.bpo.1-amd64 from backports.
Don't. That kernel is very broken. Switch to the latest 4.8 kernel available from either unstable or kernel.org, or compile the latest 4.4-longterm kernel from kernel.org. > Some of the function keys work (e.g., Fn-F5/F6 for brightness down/up), > but some do not (e.g., F1-F3 for volume control, and F4 for suspend > (suspend works fine out of the box via the Xfce suspend hooks)). Any > idea how to fix / troubleshoot this? run xev, and check if you get X events. If you do, you need to get xfce to handle these X events somehow (can't help you there). If you don't see anything in xev, use the stuff in package input-utils to trace events in the thinkpad-acpi input device, and also on the main keyboard input device (lsinput, input-events). That might help. > I saw this: > > http://www.thinkwiki.org/wiki/How_to_get_special_keys_to_work It is somewhat outdated for the newer Lenovo models and Linux kernels, I believe. > But the details are really not explained well - what are these masks, > what do they mean, and where are they documented? You should not need to mess with those. They are either correct out-of-the-box, or you need a newer kernel anyway for other reasons. FWIW, they are documented in Documentation/laptops/thinkpad-acpi.txt in the kernel source: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/laptops/thinkpad-acpi.txt -- Henrique Holschuh
