Recently, updating and upgrading my VMWare’s Kali VM caused the cursor to disappear. Mouse pointers are very, very important for navigating modern OSes; it’s practically impossible to manage a computer system without one, no mater how much time you intend to spend in the terminal. Worse yet, the loss occurred during a CTFs Friday Nights event on the Cyberspacemanmike Discord, causing the event to fail catastrophically. Why would updating the VM cause what’s likely a hypervisor issue to fail? And more importantly, what’s the solution? How do I get the cursor back?
🖱️ The Symptom
The behavior was strange. The VM would boot normally, XFCE would load, and everything looked fine—except there was no mouse cursor. Not a flicker, not a ghost image, nothing. Clicking blindly still interacted with UI elements, but without visual feedback it was effectively unusable.
Pressing Ctrl + Alt to release the mouse from the VM made the pointer visible again on the host, but the moment it re-entered the VM it vanished. What now?
🤔 The Initial (Incorrect) Assumptions
I find that AI usually speeds up Linux troubleshooting and so I consulted ChatGPT. ChatGPT’s first assumption was that something inside the Kali environment had broken. After all, the issue appeared immediately after running:
sudo apt update
sudo apt upgrade
That update pulled in a number of packages including:
- a newer Linux kernel
- updated
open-vm-tools - updated graphics stack components (Mesa/Xorg)
- updated XFCE components
The natural conclusion was that the guest environment had somehow misconfigured itself.
Attempts to fix it inside the VM included:
- restarting
open-vm-tools - reinstalling
open-vm-tools-desktop - disabling the XFCE compositor
- restarting the window manager
This was a lengthy process with many unexpected twists-and-turns. I’ll spare you the details; none of these proposed solutions fixed the problem.
🧠 The Real Cause
The root cause turned out not to be Kali at all, but VMware virtual hardware compatibility. Actually, I had been one step ahead of ChatGPT; I’d assumed that any shared input controls and rendering failures could be partially attributed to the hypervisor. My lack of Linux competency confidence however, caused me to defer to the AI. I tried reconfiguring Kali according to the Artificial Intelligence’s reasoning which was sound after all; the hypervisor hadn’t changed, only the VM had. Moreover, I didn’t appreciate the ways in which modifying a VM could impact the hypervisor. Typically the cause-effect relationship is one-way, top-down.
As it turns out however, each VMware VM is assigned a virtual hardware version, which defines the capabilities of the emulated devices: graphics adapter, mouse input device, memory model, and so on. Older VMs often run with hardware versions from the VMware release they were originally created on.
After the Kali upgrade, the VM was running a newer kernel and vmwgfx graphics driver, but still using an older virtual hardware definition. This mismatch caused VMware’s hardware cursor overlay to fail.
In simplified terms, the cursor pipeline looks something like this:
Guest OS cursor
↓
Xorg / compositor
↓
vmwgfx driver
↓
VMware SVGA virtual GPU
↓
Host GPU
↓
Visible cursor
When the virtual hardware definition is too old, the newer driver stack can attempt to use features the emulated device doesn’t correctly support. The result is a cursor that technically exists—but never gets rendered.
🔄 Why the Update Triggered It
Kali is a rolling distribution, meaning large parts of the system change frequently. Updating pulled in:
- a new kernel series
- a newer
vmwgfxdriver - updated
open-vm-tools
Those components expected newer virtual hardware behavior than the VM was providing.
The hypervisor itself hadn’t changed—but the guest stack had and that affected the hypervisor’s ability to render the cursor.
🛠️ Tl:dr – The Fix
The solution was to upgrade the VM’s hardware compatibility. Pre-acquisition VMWare freeware lacks Change Hardware Compatibility, so the first step was to upgrade to version 25H2u1, build 24995812.
Then in VMware Workstation Pro:
VM → Manage → Change Hardware Compatibility
Select the newest compatibility level supported by your Workstation version (for example Workstation 17.x hardware version 25).
After applying the upgrade and rebooting the VM, the cursor immediately returned.
No additional configuration inside Kali was required.
⚠️ A Note for VMware Player Users
This option is only available in VMware Workstation Pro. Player users don’t get the hardware compatibility wizard, which makes diagnosing and fixing issues like this significantly harder.
Since VMware Workstation Pro is now free for personal use, switching to it is generally worth it if you’re running Kali or other rapidly changing guest systems. You can do so without signing up for a Broadcom account by obtaining the latest version from this mirror: https://www.techspot.com/downloads/189-vmware-workstation-for-windows.html
🔒 Preventing This in the Future
There are a couple of ways to avoid losing hours to this problem.
First, take snapshots before major upgrades (also only available in Pro):
VM → Snapshot → Take Snapshot
Second, periodically upgrade VM hardware compatibility after upgrading VMware itself.
Finally, remember that Kali VMs are often treated as disposable lab environments. Keeping a clean base image and rebuilding when needed can sometimes be faster than deep debugging (says the AI but only after I explicitly asked if debugging would be faster, assured me it would be, and then proceeded to waste a day with troubleshooting Kali dependency hell).
🧾 Final Thoughts
This issue is a perfect example of how virtualization adds another layer where compatibility problems can hide. Nothing inside Kali was truly “broken”; the guest simply moved forward faster than the virtual hardware definition it was running on.
When a VM behaves strangely after an upgrade, it’s worth remembering that the problem may not be inside the guest at all.
Sometimes the fix is just teaching the hypervisor how to pretend to be newer hardware.
Majkel
cyberspacemanmike
aymane
cyberspacemanmike