Verified 6/24 JB
If you find that your Chromebook screen has rotated, you can use a quick key-sequence to rote it back to normal.
On your keyboard, hold the CTRL+Shift keys, then click the Refresh (circle with arrow) key. Do this until your screen is back to normal.
The first time you press that key combination, you'll get a popup asking you if you want to rotate your screen. Click Continue.