For the last several weeks I've had serious problems with the display of my Pro¹ X. Right now the display only works when the keyboard is slightly ajar, which makes the phone almost useless.
The problems started about a month ago and I think that they were triggered by the interaction between Android Auto and whatever customized software the Pro¹ X has to force landscape mode when the keyboard slides out. Initially, all I noticed is that when the keyboard slides out, the display on Android Auto switches to portrait mode. Later I noticed that after disconnecting from Android Auto, the phon