eGPU and monitor hotplugging

[pauel3312]

Hi there!

I've been trying to get around this issue, but nothing on the wiki could get me a fix and people on the discord pointed me here, so here goes:
I've been trying to use a laptop with an eGPU and an external monitor plugged into it. It works great, except when I want to take my laptop on the go and not have it turn off. For that, I start by

• Disabling the external monitor (with hyprctl keyword monitor desc:$MON_DESC,disable
• Removing the eGPU PCI device with echo 1 | sudo tee /sys/bus/pci/devices/$EGPU_PCI/remove

Up till this point everything works great, no issues there.
The problem arises when I get back and try to plug it back in.
To this effect, I rescan PCI devices to get my eGPU back, with echo 1 | sudo tee /sys/bus/pci/devices/$EGPU_PCI/remove

And heres the core of the problem: when I previously unplugged the monitors, there is a stale monitor entry left over in hyprctl monitors all. This is a problem because, when plugging the eGPU back in, the port assigned to the monitor (usually HDMI-A-2) changes (and ususally becomes HDMI-A-4). This is a problem, because the disabled monitor entry has not been removed, but it's description and parameters are still the same as the one I just plugged in.
I use a quick script that finds the new monitors port flawlessly, but when I try to enable it by port with hyprctl keyword monitor "$MON_PORT,1920x1080@60,2160x-570,1,transform,1", the monitor stays black, and any interaction with it whatsoever will cause hyprland to crash.
I suspect this has to do with the old, stale monitor entry that still lingers in hyprctl monitors all, but after hours of searching on the wiki, I could not find a fix, and I have now to assume this is some kind of bug or mishandling of hyprland.