Unable to change external display orientation for Windows 11 VM on M1 Mac + Monterey

[Ryan37]

I have a 16" M1 Max MacBook Pro with Monterey 12.0.1/Parallels 17.1.0 (51516)/Windows Feature Experience Pack 1000.22499.1000.0 Insider Preview.

I am using two external monitors, both LG. I'm able to configure orientation fine in macOS with my external monitor in portrait mode (90º rotation), but this orientation isn't honored in my Windows 11 VM and the monitor's video is displayed in landscape mode with letterboxing for the top and bottom third of the monitor.

-If I turn off 90º orientation in macOS, the VM output will fill the screen but is in the wrong orientation
-I've tried using Parallels Toolbox's Screen Resolution widget to change the rotation of the tilted display, but after selecting 90º the setting never gets applied and the selection stays at 0º.
-Display Orientation is grayed out in Windows 11 Display settings.
-"Use All Displays In Full Screen" doesn't help

I've tried all of this with and without macOS adjusting the orientation for me, and all 3 of the display options in the Hardware settings for the VM and signing out + resetting, but nothing seems to get my display working in Windows 11 in portrait orientation.

Any help or direction/indication if this is a known issue for anyone else is much appreciated. Thanks!

 

[CortoM]

I have the same problem, but it is three years later. What do you do, Parallels Teams ? We paid more and more every year for a product which is supposed to be more and more performant ? Best regards

 

[JohnL73]

I have the same problem, but it is three years later. What do you do, Parallels Teams ? We paid more and more every year for a product which is supposed to be more and more performant ? Best regards

For my 27" LG Monitor, a resolution at or lower than 1152 X 2048 works with a portrait-oriented display. Although the display orientation is still greyed out, everything adjusted automatically once I switched the resolution.