Bug 415546 - Cannot scroll horizontally with mousewheel since Qt 5.14
Summary: Cannot scroll horizontally with mousewheel since Qt 5.14
Status: RESOLVED UPSTREAM
Alias: None
Product: dolphin
Classification: Applications
Component: view-engine: compact mode (show other bugs)
Version: 19.12.0
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Dolphin Bug Assignee
URL:
Keywords:
: 415578 (view as bug list)
Depends on:
Blocks:
 
Reported: 2019-12-25 09:22 UTC by Justin Morgan
Modified: 2020-01-22 00:40 UTC (History)
9 users (show)

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Latest Commit:
Version Fixed In:

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Description Justin Morgan 2019-12-25 09:22:12 UTC 
SUMMARY
Since upgrading to 19.12 on Arch Linux, scrolling horizontally with the mousewheel (in compact view) is broken

STEPS TO REPRODUCE
1. When a horizontal scrollbar is visible, scroll the mousewheel

OBSERVED RESULT
Doesn't scroll

EXPECTED RESULT
Scrolling as in previous versions of Dolphin

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Linux 5.4.6
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 5.14

ADDITIONAL INFORMATION
Comment 1 Martin Droessler 2019-12-25 13:00:00 UTC 
Same here - also using Arch Linux.

Using the touchpad of the Laptop, I'am able to scroll horizontally. But not with the mousewheel.


VERSIONS:
Plasma: 5.17.4
Frameworks: 5.65.0
Applications: 19.12.0
QT: 5.14
Comment 2 Nate Graham 2019-12-25 16:41:52 UTC 
Scrolling horizontally using a mousewheel requires holding down the Alt key while turning the wheel. It's this way in all Qt and KDE software.
Comment 3 Martin Droessler 2019-12-25 17:01:04 UTC 
Was there a change in Frameworks or QT lately?
Because on my other machine, thats not quite up2date, horizontal scrolling in Dolphin works without pressing the Alt key.

The only difference in Versions is:
Frameworks: 5.64.0
QT: 5.13.2
Comment 4 Nate Graham 2019-12-25 17:03:34 UTC 
Not to my knowledge. Can you clarify *where* in Dolphin you are scrolling horizontally? The places panel? The main view? If so, what view mode are you using? Details, icons, or compact?
Comment 5 Martin Droessler 2019-12-25 18:34:34 UTC 
Compact view mode in the main view - just as the issue opener described.
In the other view modes, the content is aligned in a downward fashion, so horizontal scrolling is not required.
Comment 6 Nate Graham 2019-12-25 18:56:51 UTC 
Weird, this works fine for me when using Compact mode with Dolphin from 19.12 or git master, with Qt 5.13.1. A regular scroll goes horizontally without needing to hold down the Alt key.

I wonder if this is a Qt 5.14 regression.
Comment 7 Fabian Vogt 2019-12-26 00:00:24 UTC 
I can confirm that it's broken with Dolphin 19.12 + Qt 5.14.0, but works with Dolphin 19.12 + Qt 5.13.1. So likely a change/bug in Qt indeed.
Comment 8 Antonio Rojas 2019-12-26 11:58:07 UTC 
*** Bug 415578 has been marked as a duplicate of this bug. ***
Comment 9 Nate Graham 2019-12-26 15:32:53 UTC 
Does anyone have a Qt bug report handy?
Comment 10 Elvis Angelaccio 2019-12-29 11:41:51 UTC 
Not a dolphin bug. All Qt apps seems to be affected.

I filed an issue upstream: https://bugreports.qt.io/browse/QTBUG-81007
Comment 11 gudvinr+kde 2019-12-30 13:41:48 UTC 
Horizontal scroll wheel (if you have one) works thought.