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[Bug] Focusing on Blender with tablet causes it to stop working (Huion Kamvas Pro 13)
Open, Needs Triage by DeveloperPublic

Description

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.01

Blender Version
Broken: version: 2.80 (sub 57), branch: master, commit date: 2019-04-16 20:13, hash: rB5d8030b8f3cf
Worked: (optional)

Short description of error
If I tap on the Blender window with my tablet pen, the pen, pen buttons, and tablet buttons all stop responding until I use my physical mouse to click outside of the window. Tapping the Blender window will once again cause it to stop responding. and the cycle repeats.

I can still use any other windows like my web browser or windows settings menus, but once I tap on Blender it locks up

I can even hover over Blender with my pen and it'll track my mouse cursor, but the instant I actually click/tap on it I lose all control.

TABLET: Huion Kamvas Pro 13 (latest drivers)

Exact steps for others to reproduce the error
Step 1. Have a Huion Kamvas 13 display tablet
Step 2. Open Blender 2.80
Step 3. Tap on the Blender 2.80 window
Step 4. The mouse cursor stops following the pen and all buttons stop working.

Details

Type
Bug

Event Timeline

Not sure how relevant this is to the bug report, but I can't reproduce this with my Wacom Intuos.

Windows Ink enabled? This problem is only in Blender 2.8? In Bender 2.79 or Zbrash everything is fine? I had a problem with Hunion H430P. There brushes did not work correctly. After disabling Windows Ink the problem disappeared.

Try to change input library (windows ink / wintab), try to use viziblr fixmypen to off some services. Check if windows pen handwrite input of such services are off.