1207134 - Scroll while not focused not working in KDE Plasma 5

Status: RESOLVED INCOMPLETE

(Core :: XUL, defect)

Description

[vbocek]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:42.0) Gecko/20100101 Firefox/42.0
Build ID: 20150921004016

Steps to reproduce:

In Firefox developer edition 42.0a2 ("Built from https://hg.mozilla.org/releases/mozilla-aurora/rev/9f20432c24bc ").

* Open firefox on Linux in KDE plasma 5 (tested on Kubuntu 15.04 live cd and Debian testing)
* Open another smaller window of any app on top of firefox.
* Move mouse on top of unfocused firefox window
* Scroll

OR

* Open firefox on Linux in KDE plasma 5 (tested on Kubuntu 15.04 live cd and Debian testing)
* Open another app, let's say kwrite.
* Click kwrite on bottom task panel. Kwrite is now focused.
* Click firefox on bottom task panel. Firefox is now focused.
* Put your mouse over firefox and scroll

It works as expected on Firefox 40.0.2 or in Unity (tested on Ubuntu 15.04 live cd).




Actual results:

Firefox does not scroll the webpage.


Expected results:

Firefox should scroll the webpage.

Comment 1

[vbocek]

Small amendment: in the second test case, you have to click kwrite again so it minimizes. This is the correct test case:

* Open firefox on Linux in KDE plasma 5 (tested on Kubuntu 15.04 live cd and Debian testing)
* Open another app, let's say kwrite.
* Click kwrite on bottom task panel, so that kwrite is focused.
* Click kwrite on bottom task panel again. Kwrite is now minimized and firefox is now focused.
* Put your mouse over firefox and scroll

Comment 2

[Johannes Pfrang [:johnp]]

This looks exactly like an issue in gtk3.
Upstream KDE Bug: https://bugs.kde.org/show_bug.cgi?id=348270
RedHat Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1226465

Please try one of the workarounds in https://bugzilla.redhat.com/show_bug.cgi?id=1226465#c18 or https://bugs.kde.org/show_bug.cgi?id=348270#c26

Comment 3

[Justin [:JW_SoftvisionQA]]

I will close this issue due to the lack of response from the reporter. If this issue persists please reopen and provide more info.