My extended monitor keeps flipping back to landscape orientation

[Samuel Biagioni]

How do I stop my extended monitor from flipping to landscape orientation randomly. My extended monitor is set to portrait orientation. I had to unplug and replug it in order to move monitors around and ever since it intermittently flips back to landscape orientation. It does so every time I sleep, restart, or reboot my PC. It also does this randomly while using several different applications. I am always able to set it back to portrait orientation but it will last as little as 5 minutes before flipping again. Sometimes it lasts for hours so I expect there is something specific triggering the

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