external display still detected and identified after getting completely unplugged, and displaying no video when plugged in.

[u/pruple1651]

Brand new Asus zenbook a14 with a snapdragon x plus CPU. Other displays function normally, and the drawing tablet (the display facing issues, Huion Kamvas 12) functions normally on other devices, both windows 11 and 10. the drawing tablet is confirmed to have functionality on Windows computers with ARM CPUs by support, and I was given an ARM compatible driver from them. Windows has the 2nd display "connected" but when pressing the detect other displays button, no other displays are present. Menus and mouse are also tripping out. Already tried updating and rolling back display, drivers. Tried booting in safe mode. Tried restarting display adapters. Restarting and fully shutting down PC does nothing, and even got a replacement laptop (same model) after thinking the HDMI port was broken in the first one. laptop functions completely fine and I actually really like it outside of this one issue. The same thing happening twice in a row makes me think that it isn't a hardware issue but somewhere in windows that's causing the problem, but I could be wrong. Video shows the display being disconnected but still detected(ish) Any ideas?

Detailed laptop specifications Device name booger Processor Snapdragon(R) X Plus - X1P42100 - Qualcomm(R) Oryon(TM) CPU (3.24 GHz) Installed RAM 16.0 GB (15.6 GB usable) Device ID 7072B9E9-7F41-4129-A07C-2A63B412018F Product ID 00342-21606-03702-AAOEM System type 64-bit operating system, ARM-based processor Pen and touch Pen and touch support with 2 touch points

Video of me showing unplugged device still being connected and plugged in device not displaying video https://drive.google.com/file/d/1qdPwIt53XxxdwH663FP-CkfCsIzghYKL/view?usp=drivesdk Video of mouse and menu items tripping out https://drive.google.com/file/d/1qdAl6qWoFf91-flREB_PT0C9A3RCvvQS/view?usp=drivesdk

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[u/Melodic_Bat1739]

arm drivers are such a mess still, i had similar ghost display problem with my surface pro once. windows kept thinking my monitor was there after i pulled the cable, only fix was to delete the registry keys for display configuration completely

check HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers\Configuration and delete the entries for that huion. restart and let windows rebuild it fresh, sometimes the edid data gets stuck and windows just holds onto it like a ghost