The HP Elitebook is one of the best devices I ever used, but it has some serious issues with the screen rotation of the tablet. If you turn the screen around to use the pc as a tablet, you should be able to change the orientation of the screen with the rotate button.
In some cases, the screen rotates automatically, sometimes it does not, and the rotate button does not always work as expected.
This is what solved the issue for me:
install the latest Intel HD video driver from the HP support site
install or reinstall the HP Quick Launch button drivers from the same site
– download the middleware for MacOs from the Belgian E-ID site. You don’t need it if you just want to use the e-id with Safari and Keychain, but it has a nice app that allows you to read the info on your card, and even change your pin.
I am able to view the data on my E-ID, but unfortunately, logging in to websites with the card does not work; on Taxonweb I get the message that Safari is not supported, logging in to Certipost just does not work. There is still some work to do…