XPS9365 2-in-1 doesn't automatically switch between desktop and tablet mode

[Mario Limonciello]

Using the current Ubuntu 17.04 image and selecting the unity8 session, the XPS 9365 does not automatically switch modes.

When switching to tablet mode, the ACPI driver INT33D6 which is bound to intel-vbtn will emit a few 0xcc events. When switching to desktop mode, the same driver will emit a 0xcd event.

The intel-vbtn driver doesn't currently send anything to the OS about these events (just messages in dmesg about unknown, so Unity8 isn't able to pick them up.

Unity will have to decide what key codes should be picked up, and the intel-vbtn driver will need to be configured to emit that event.

I think it should be the SW_TABLET_MODE looking through the kernel.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1678200

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.11 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc5

[Mario Limonciello (superm1)]

https://github.com/torvalds/linux/blob/v4.11-rc5/drivers/platform/x86/intel-vbtn.c#L38