If there is no rotate option available for displays connected through a dock, check that DisplayLink software is installed.
If the DisplayLink Manager is installed do the rotation through that instead of using the System Preferences: Displays rotate option (which is not available). If this fails, check the DisplayLink software is fully up to date.
I usually write a blog post about once a week. The latest post can be viewed here: No More Nukes?: I can make an argument both ways about whether nuclear weapons are good or bad. (posted 2025-06-23 at 15:02:39). I do podcasts too!. You can listen to my latest podcast, here: OJB's Podcast 2025-05-31 Respect the Flag: Find me a Maori flag and I will burn it..
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