#Drawing Tablet Only Works In USB Demo and First Boot, Then Never Again on Thinkpad X201

3 messages · Page 1 of 1 (latest)

onyx quest
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Hello! I have a Lenovo Thinkpad X201, which is a laptop with a screen doubles as a touch pad and drawing tablet. I've been trying to get Mint Xfce to work with it, and while the tablet functionalities work when booting from the installation USB, and on the first reboot from that USB, it never works again, and I'm unsure the cause.

  1. Boot into USB environment (tablet works)
  2. Install mint to harddrive from USB
  3. Restart
  4. Boot to harddrive (tablet works, first boot)
  5. Restart
  6. Boot to harddrive (tablet no longer works, no matter how many restarts are performed).

I've reinstalled mint multiple times thinking this was an issue on my end, but the tablet functionalities consistently worked in the USB demo, the first boot after that, but never again (on both Xcfe and Cinnamon, I tried both, but had the same result).

It seems like the service for the drawing tablet never starts, or fails to start somehow. Running xsetwacom --list devices results in nothing showing up when ran in the terminal on subsequent restarts. But, lists this in USB Demo mode and first restart:

Wacom Serial Penabled 2FG Touchscreen Finger touch    id: 14    type: TOUCH     
Wacom Serial Penabled 2FG Touchscreen Pen eraser    id: 15    type: ERASER```

I'd like to get this working somehow without reinstalling, but I am fine reinstalling if it fixes this issue.
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Specs here! I've updated my installation, but that didn't fix it, and I've also searched for drivers in Driver Manager, but nothing showed up.

onyx quest
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Took some time to figure it out. From what I gather the tablet runs through a serial interface, and that interface isn’t attached to anything on subsequent boot (it’s shown as “undefined” in the serial readout). Running “sudo inputattach --w8001 /dev/ttyS4” temporarily enables the pen, and converting that command into a service gets the tablet working on reboot.