Ubuntu 24.04 LTS kernel does not recognize wacom tablet.

[MFRodrigues-1]

Hello, I tried connecting my Wacom Intuos S (CTL-4100) to my ubuntu laptop and when I input xinput list with the usb connected, the wacom tablet does not show up in the output.
I've tried rebooting multiple times, changing the connected usb port.
I found out that switching the tablet to Android mode allows it to be detected and everything works (for android mode, with the android mode issues, such as mirrored inputs in some apps and only half of the tablet being mapped into the display)
I've tried following the installation steps of input-wacom and the X server and nothing shows up.
When I do sudo modprobe wacom I get the error modprobe: ERROR: could not insert 'wacom': Key was rejected by service.

I also get the following output for the module info.

modinfo wacom | grep version      
version:        v2.00-1.5.0
srcversion:     FEBC70963692563C2733E34
vermagic:       6.14.0-36-generic SMP preempt mod_unload modversions 

And when I look up the libwacom packages

apt search libwacom                                          
Sorting... Done
Full Text Search... Done
libwacom-bin/noble,now 2.10.0-2 amd64 [installed]
  Wacom model feature query library -- binaries

libwacom-common/noble,noble,now 2.10.0-2 all [installed,automatic]
  Wacom model feature query library (common files)

libwacom-dev/noble 2.10.0-2 amd64
  Wacom model feature query library (development files)

libwacom9/noble,now 2.10.0-2 amd64 [installed,automatic]
  Wacom model feature query library

Could anyone help me out with this issue?

[jcespinoza]

Hey man, I think I faced the same issue; my tablet (CTL-4100WL) was actually working but sometimes the pointer disappeared (spoilers: it still does to this day) so I installed this driver and then I couldn't get the tablet to work. I also switched it to Android mode just to make sure it wasn't dead.

After some troubleshooting I realized I did have Secure Boot enabled on this machine so I just had to follow the instructions in this page to sign the driver: Creating and Registering Keys

Tablet got recognized after doing sudo modprobe wacom