Hi On Fri, Jan 12, 2018 at 1:16 PM, Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> wrote: > On Fri, 12 Jan 2018, David Herrmann wrote: >> I see that it would be beneficial knowing exactly what this key >> reports. However, I think spamming the kernel log is not the right way >> to motivate people to investigate this. I'd be fine with printing a >> one-time hint for those keys, or some other option. But the current >> state makes kernel development a hassle with all the warnings printed >> by the thinkpad-acpi driver. > > Agreed. > > In fact, I will accept a patch that changes that warning to a pr_info, > and rewords it to a far less scary "unknown general purpose or > thermal-related event". The warning was added a long time ago, there > were only thermal alarms in the 0x6000 event range at that time, I > think. Right. I will have a look. >> > It could be to "turn keyboard lighting on" helper or something like that >> > (coupled to other sensor), for all we know. It is a bit strange for a >> > palm-detection sensor to be over the arrow keys, and it certainly >> > doesn't look like it is a cat-on-keyboard detector... >> >> Palm-detection underneath the arrow keys sounds like the right place >> to me. Especially as most people are right-handed, you want to detect >> movement of the right hand. The left hand might just be resting on the >> keyboard the entire time. Inspecting my own usage, I'd say the lower >> right hand side of they keyboard is the perfect place for that. What >> makes you sceptical of that? > > Because for some reason I thought this was about disabling the touchpad > automatically. Running on little sleep, here, due to Spectre. No worries. >> I checked with the input developers, and there is currently no hookup >> of any similar interfaces in libinput / xf86-input-*. So no similar >> prior art that might be of help here. >> >> > Another good place to ask around for such information are the thinkpad >> > forums, they are far more windows-centric, but there is a *lot* of >> > thinkpad experts lurking there... >> >> Which forums are you referring to here? I am not used to debugging >> thinkpad acpi drivers, so any hints are welcome. > > Here: > https://forum.thinkpads.com/ Thanks! The search seems limited to 1 request per minute. Meh. I will see whether I can get some information out of it. Thanks David
