It seems two upstream patches as below are addressing tablet mode. From their description, I believe it receives 0x60c0 and generates tablet mode event.
https://patchwork.kernel.org/patch/9423615/ https://patchwork.kernel.org/patch/9423621/ I applied them to thinkpad_acpi.c to ubuntu-yakkety (but it is the same as current upstream) and attached it here. Please also try it as well. ** Attachment added: "thinkpad_acpi.c" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1644670/+attachment/4788288/+files/thinkpad_acpi.c -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1644670 Title: cannot use tablet mode lid sensor on yoga 460 Status in linux package in Ubuntu: Triaged Bug description: See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1644047 for machine logs. I see a message like this in syslog when I put this laptop into tablet mode (lid all the way backwards) from https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=795214 [80192.862047] thinkpad_acpi: unknown possible thermal alarm or keyboard event received [80192.862053] thinkpad_acpi: unhandled HKEY event 0x60c0 [80192.862055] thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-de...@lists.sourceforge.net [80194.976875] thinkpad_acpi: unknown possible thermal alarm or keyboard event received [80194.976885] thinkpad_acpi: unhandled HKEY event 0x60c0 [80194.976889] thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-de...@lists.sourceforge.net Happens on current kernel in 16.10, and also 4.9 as per the previous stated launchpad bug. possible solution ?: http://comments.gmane.org/gmane.linux.kernel/2058487 We need this to be handled by whatever input dev node so unity8 can react to when the lid it is put into tablet mode. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1644670/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
