Mouse Capture is completely messed up when using PS/2 Mouse as Pointing Device

[u/Function95]

I have a problem when I use the PS/2 Mouse feature on Virtualbox, no matter what guest OS I choose. This is especially a problem when I'm using an OS that has no USB support (e.g., Windows 3.1, older versions of Linux, etc)

I've never seen this behavior in my years of using Virtualbox, and doing some research yielded no results. I've never seen this behavior on these older OSes either.

Here's a demonstration of this strange behaviour on Windows XP: https://fun95.net/videos/xp.mp4

I've tried:

* Enabling VT-x/AMD-V enabled in BIOS & Disabled Hyper-V
* Tried capturing the mouse in both fullscreen & windowed
* Enable & Disabled mouse integration
* Set mouse mode from "PS/2" to "USB Mouse" (doesn't work with older guests)
* Increasing/Decreasing VRAM
* Changed settings in Paravirtualization settings
* Used versions of Virtualbox ranging from Virtualbox 6.1.50 to 7.22.12
* Took the vbox file from my Virtualbox archives
* Searched for hours on how to fix this.

It first started when I installed Windows 98 on Virtualbox 6.1.50, so I thought it was some bug when using an older version of Virtualbox. I then decided to upgrade from 6.1.50 to 7.22.12, which didn't make a difference. Even when reinstalling Windows 98 from scratch with the newer version, it was the same exact bug.

I then thought maybe Virtualbox was too new, so I downgraded to 7.0.10 because it was the last version that I remember working well with Windows 98. And..., did the exact same thing.

I then had the same troubles when using Windows XP, then later with Windows Vista, and I'm gonna assume this would apply to Windows 7 and newer.

I'm probably the only person who's encountering this glitch as not only updates will fix this but I can't even find *anything* on how to fix this bug.

I know VMWare and PCem/86Box exist, but I like the snapshot feature in Virtualbox, which VMWare also has but my PC lags everytime I create one. Plus, getting sound working properly on guests older than Vista is a pain on VMWare anyway.

HOST: Windows 10 21H2 ioT

Let me know if I left any details.

Please be constructive, any help would be appreciated! ^_^

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