1779871 - Pen pressure doesn't work on Firefox Linux with official XP Pen drivers

Status: RESOLVED DUPLICATE of bug 1501744

(Core :: DOM: UI Events & Focus Handling, defect)

Description

[roland3564]

Attachment: 1657958701.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0

Steps to reproduce:

1. Download the Xp Pen drivers from their official website and reboot
2. connect the pentablet (G640) to the computer (any linux distro)
3. boot Firefox
4. go to pressurejs.com
5. press the testing circle with the pen
6. The website echoes “Your device doesn’t support pen pressure, falling back to polyfill”
7. other browsers (like Chromium) has pen pressure working

Actual results:

The pen pressure was not registered by firefox, no webapps could detect any form of pen pressure emitted by the tablet, the signals of the tablet are most likely detected as mouse inputs.

Expected results:

1. Download the drivers, reboot, and connect the tablet
2. boot Firefox and go to pressurejs.com
3. test the blue circle with the pen
4. the circle can be controlled with every pressure variation.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::DOM: UI Events & Focus Handling' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Kagami Rosylight [:saschanaz] (they/them) (OOO until Dec 11)]

Hello Martin, do you think this is fixed by bug 1501744?

Comment 3

[Martin Stránský [:stransky] (ni? me)]

(In reply to Kagami Rosylight [:saschanaz] (they/them) from comment #2)

Hello Martin, do you think this is fixed by bug 1501744?

No idea, should be tested.

Comment 4

[Kagami Rosylight [:saschanaz] (they/them) (OOO until Dec 11)]

This works for me on 130 Nightly while not in 128 stable, so fixed! (Using Wacom CTL-460 on Steam OS)

One thing that's still broken is that button property somehow remains -1 while buttons property changes.