UserAgent: Mozilla/5.0 (X11; CrOS x86_64 11021.56.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.76 Safari/537.36
Platform: 11021.56.0 (Official Build) stable-channel cave

Steps to reproduce the problem:
1. Start tablet mode by flipping the keyboard, check that auto-rotate works
2. Connect a bluetooth device, such as a wireless mouse or pedal
3. Auto-rotate stops working and clamshell orientation is forced upon connecting bluetooth device.

What is the expected behavior?
Auto-rotate should still work with a connected bluetooth device and tablet mode enabled.

What went wrong?
My bluetooth pedal started forcing default clamshell orientation in tablet mode. Issue can be partly bypassed by changing orientation in settings or using "Force Ui Mode" in flags to force TouchView mode. Those are not user-friendly solutions.

Did this work before? Yes 67 and older

Chrome version: 70.0.3538.76  Channel: stable
OS Version: 11021.56.0
Flash Version: 

This issue was previously reported as issue 882410. Still not fixed since Chrome 68 update.

This issue is a major disadvantage to musicians reading music off of Chromebooks on tablet mode.