Trackpad scrolling in tkinter doesn't work on some laptops

[00cb8ee4-8477-4cf2-a23b-96ae6c49efd3]

BPO	23002
Nosy	@aivarannamaa, @zware

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GitHub fields: ```python assignee = None closed_at = created_at = labels = ['expert-tkinter'] title = "Trackpad scrolling in tkinter doesn't work on some laptops" updated_at = user = 'https://github.com/aivarannamaa' ``` bugs.python.org fields: ```python activity = actor = 'zach.ware' assignee = 'none' closed = True closed_date = closer = 'zach.ware' components = ['Tkinter'] creation = creator = 'Aivar.Annamaa' dependencies = [] files = [] hgrepos = [] issue_num = 23002 keywords = [] message_count = 3.0 messages = ['232253', '232254', '232257'] nosy_count = 2.0 nosy_names = ['Aivar.Annamaa', 'zach.ware'] pr_nums = [] priority = 'normal' resolution = 'third party' stage = 'resolved' status = 'closed' superseder = None type = None url = 'https://bugs.python.org/issue23002' versions = ['Python 3.4'] ```

[00cb8ee4-8477-4cf2-a23b-96ae6c49efd3]

Here's a simple tkinter program, where text can be scrolled by mouse wheel, and by trackpads of some laptops (Macbook Pro, Dell Latitude E5430), but not by trackpads of some other laptops (Lenovo T420).

from tkinter import Tk
from tkinter import scrolledtext
window = Tk()
text = scrolledtext.ScrolledText(window)
text.grid()
window.mainloop()

[00cb8ee4-8477-4cf2-a23b-96ae6c49efd3]

Clarification: In general trackpad scrolling does work on my Lenovo (eg. in Windows Notepad), it just doesn't work in tkinter programs (including IDLE)

[zware]

Sorry, but there's nothing we can do about it; that will be a Tk issue. I'd suggest discussing it with the Tcl/Tk developers, see http://wiki.tcl.tk/1020