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Grease pencil drawing on tablet
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First sorry for my english

System Information
Operating system: Windows 64 bit
Graphics card: Radeon RX 5700 Xt
Processor: AMD 3700x
Tablet: One by wacom (the one without the screen)

Blender Version
Blender 2.92.0 Candidate
February 22, 08:38:50

Blender 2.93.0 Alpha
February 20, 06:18:15- 37e6a1995ac7

Blender 2.91.2 released on January 20, 2021

When i draw on the left side of my tablet, exactly in the middle, i get lines going from the middle of the screen to the top{F9828023}

Any new blend file open in 2d animation mode can reproduce the same error for me.
I'm mainly looking if i'm the only one having this problem or is it general.

Event Timeline

i made a consistant wave from right to left so you can see wich can of glitches i get.

This looks like T85733: Spikes when using tablet,
you could try:

The issue seems to only happen when Blender is full screen (either Windows10 'Maximize window' or Blender's 'Toggle fullscreen'). If I make the Blender window smaller than full screen, the vertical strokes don't appear.

This looks like T85733: Spikes when using tablet
you could try:

It's exaclty that, i didn't find it when i searched for bug report because he didn't put grease pencil on the title.
Thanks but none of the solution proposed solve the problem i guess i can close this task.