I have an older hp laptop running windows 7pro/linux mint. While I was running 7pro, I left it on and plugged in overnight.
When I shut it off, the display was upside down. I rebooted it and it was still upside down. I shut it down again (yesterday) and haven't tried it again.
It's awkward as can be to use like this. I'm thinking there's something in the settings to change. If any of you have been through this I'd appreciate help in changing it. Thanks in advance.