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Intuos 3 (PTZ‑630)“Pen‑Stuck-Down” Bug on macOS 15 Sequoia – Issue #147

@jeffreylm

Description

@jeffreylm

Intuos 4 (PTK‑640) on macOS 15.0 Sequoia constantly remains in a "pen‑down" state. When I drag to select text, the driver never receives the pen‑up event, so the selection keeps expanding as I move the cursor. The only way to cancel is pressing Esc or clicking with another pointing device.


Environment

Item | Value -- | -- Tablet | Intuos 3 (PTZ‑630) macOS | 15.0 (Sequoia) Driver build | thenickdude/wacom-driver-fix – master HEAD as of 2025‑07‑07 Bundled Wacom core | 6.4.4‑2 Kernel extension | None – driver runs entirely in user space

Hypothesis

The driver intermittently fails to register (or never receives) the tip‑up HID report, so macOS never delivers a button‑up event through the event tap. Because the issue survives permission resets, user‑profile resets, and immediate reboots, the root cause is likely inside the patched driver’s event loop or its interaction with Sequoia’s new input stack.

Guidance on where the tip‑up event is parsed in the patched source so I can instrument it.

  • Any known Sequoia‑specific workarounds or branches I should test.

  • Thanks for maintaining this project!

    Intuos 4 (PTK‑640) on macOS 15.0 Sequoia constantly remains in a "pen‑down" state.
    When I drag to select text, the driver never receives the pen‑up event, so the selection keeps expanding as I move the cursor. The only way to cancel is pressing Esc or clicking with another pointing device.

    Environment

    • Tablet Intuos 3 (PTZ‑630)
    • macOS 15.0 (Sequoia)
    • Driver build Install-Wacom-Tablet-6.3.15-3-patched
      -Mac Mini M4

    Steps to Reproduce

    Boot or reboot the Mac and log in.

    Open any text field (TextEdit, Safari address bar, etc.).

    Drag with the pen to highlight text.

    Lift the pen without pressing any buttons.

    Move the pen again – text continues highlighting as if the tip were still pressed.

    Expected Behaviour

    The selection should stop the moment the pen tip leaves the tablet surface.

    Actual Behaviour

    Selection (or drag) continues until Esc is pressed or another pointing device clicks. This happens immediately after a fresh reboot and never clears on its own.

    What I Have Tried

    Action

    Result

    Reset Input Monitoring & Accessibility permissions (deleted TCC entries, re‑granted)

    No change

    Reinstalled driver (removed with Wacom Utility, ran install.sh, rebooted)

    No change

    Reset tablet preferences ("Remove Settings" in Wacom Utility)

    No change

    Checked Click‑Lock / Drag‑Lock (both Wacom Center & macOS Pointer Control)

    Not enabled

    Created a fresh macOS user account

    Bug persists

    Verified driver process (pgrep -lf WacomTabletDriver)

    Running, normal CPU

    Captured Console log while bug active

    Repeating lines: eventTapProxy: eventFlags 0x800 … (log attached)

    Hypothesis

    The driver intermittently fails to register (or never receives) the tip‑up HID report, so macOS never delivers a button‑up event through the event tap. Because the issue survives permission resets, user‑profile resets, and immediate reboots, the root cause is likely inside the patched driver’s event loop or its interaction with Sequoia’s new input stack.

    Request

    Guidance on where the tip‑up event is parsed in the patched source so I can instrument it.

    Any known Sequoia‑specific workarounds or branches I should test.

    Thanks for maintaining this project!

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