On Thu, 2016-12-22 at 13:08 +0100, Paul Menzel wrote: [...] > With linux-image-4.9.0-rc8-amd64-unsigned from the experimental > repository, the problem is still present. > > I forgot to mention that all other “special” keys, accessed using the > key *Fn*, seem to work fine. > > Also the module `soc-button-array`, mentioned in Linux kernel bug > #84651, does not get loaded. I wouldn't expect it to be. > $ grep -A1 BTN 20161222–dell_xps13–kernel_4.9-rc8_messages.txt > Dec 22 12:02:33 xps13 kernel: ACPI: Power Button [PBTN] > Dec 22 12:02:33 xps13 kernel: input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input5 > Dec 22 12:02:33 xps13 kernel: ACPI: Sleep Button [SBTN] > Dec 22 12:02:33 xps13 kernel: input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input6 This confirms that the ACPI button driver detected a power button. I also don't see any events when I press the power button on my Thinkpad T420. (I hadn't noticed this until now, since I don't normally use it.) So this may be a general regression in the ACPI button driver (or in some other part of the ACPI subsystem supporting it). Ben. -- Ben Hutchings Man invented language to satisfy his deep need to complain. - Lily Tomlin
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