[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Martin Schnitkemper]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #25 from Martin Schnitkemper  ---
After latest system update it works for me again, I can scroll in both panels
with normal speed.  

I don't know which of the components exactly solved the problem since I got a
whole bunch of updates of KDE Plasma 5.8.5 and the KDE Applications 16.12.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Elvis Angelaccio]

https://bugs.kde.org/show_bug.cgi?id=357618

Elvis Angelaccio  changed:

   What|Removed |Added

 CC||zhulik.g...@gmail.com

--- Comment #24 from Elvis Angelaccio  ---
*** Bug 356481 has been marked as a duplicate of this bug. ***

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Leszek Lesner via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Leszek Lesner  changed:

   What|Removed |Added

 CC||leszek.les...@web.de

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Rex Dieter via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Rex Dieter  changed:

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 CC||rdie...@math.unl.edu

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Rindert Vonk via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #23 from Rindert Vonk  ---
(In reply to Shlomi Fish from comment #22)
> Hi all,
> 
> (In reply to Martin Schnitkemper from comment #21)
> > It's not solved for me.  I have also not installed xf86-input-libinput on my
> > desktop system but scrolling in the left folder- or places panel in dolphin
> > is still unusable slow, in the main windows its OK.  It seems new to me
> > after upgrading to 16.08.  Distribution is Arch Linux.
> 
> please see this Mageia bug - https://bugs.mageia.org/show_bug.cgi?id=19362 -
> scrolling is low in dolphin on non-Plasma5-desktops without libinput
> installed.

I have the same problem as Martin. I'm also using arch distro as well. libinput
is installed (it is a qt5-base dependency). But I have not installed
xf86-input-libinput.
I'm using dolphin inside plasma-5 desktop, kde applications and kde frameworks
(KDE is default at my system).

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Shlomi Fish via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #22 from Shlomi Fish  ---
Hi all,

(In reply to Martin Schnitkemper from comment #21)
> It's not solved for me.  I have also not installed xf86-input-libinput on my
> desktop system but scrolling in the left folder- or places panel in dolphin
> is still unusable slow, in the main windows its OK.  It seems new to me
> after upgrading to 16.08.  Distribution is Arch Linux.

please see this Mageia bug - https://bugs.mageia.org/show_bug.cgi?id=19362 -
scrolling is low in dolphin on non-Plasma5-desktops without libinput installed.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Martin Schnitkemper via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Martin Schnitkemper  changed:

   What|Removed |Added

 CC||martin.schnitkemper@nexgo.d
   ||e

--- Comment #21 from Martin Schnitkemper  ---
It's not solved for me.  I have also not installed xf86-input-libinput on my
desktop system but scrolling in the left folder- or places panel in dolphin is
still unusable slow, in the main windows its OK.  It seems new to me after
upgrading to 16.08.  Distribution is Arch Linux.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Rindert Vonk via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Rindert Vonk  changed:

   What|Removed |Added

 CC||rindertv...@gmail.com

--- Comment #20 from Rindert Vonk  ---
(In reply to FabiB from comment #18)
> Seems to be not completeley fixed. the sidebars "places" and "folders" are
> still slow while scrolling for me, with latest git.

For me as well. I have not installed xf86-input-libinput
Version 16.08.1

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Larry via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #19 from Larry  ---
(In reply to Lukasz from comment #9)
> Use xf86-input-evdev until fixed.

Finally removed xorg-x11-drv-libinput (dnf remove xorg-x11-drv-libinput) and
all mouse-wheel scrolling issues are resolved.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[FabiB via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #18 from FabiB  ---
Seems to be not completeley fixed. the sidebars "places" and "folders" are
still slow while scrolling for me, with latest git.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Shlomi Fish via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #17 from Shlomi Fish  ---
Thanks for the fix, Martin [and all]!

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Martin Sandsmark via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Martin Sandsmark  changed:

   What|Removed |Added

  Latest Commit|http://commits.kde.org/dolp |http://commits.kde.org/dolp
   |hin/f688bcd1f14175f1624e2ab |hin/8d61c9c7b6f5a97803bf154
   |cc6452882448467c0   |529b413ee69bc2a1c

--- Comment #16 from Martin Sandsmark  ---
Git commit 8d61c9c7b6f5a97803bf154529b413ee69bc2a1c by Martin T. H. Sandsmark.
Committed on 16/07/2016 at 17:01.
Pushed by sandsmark into branch 'Applications/16.08'.

Fix scrolling on hidpi screens

Scrolling with libinput was unbearably slow.

QScrollBar is much better at scrolling than us, so let it handle it.

REVIEW: 128432

M  +1-21   src/kitemviews/kitemlistcontainer.cpp
M  +5-20   src/kitemviews/private/kitemlistsmoothscroller.cpp
M  +5-7src/kitemviews/private/kitemlistsmoothscroller.h

http://commits.kde.org/dolphin/8d61c9c7b6f5a97803bf154529b413ee69bc2a1c

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Martin Sandsmark via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Martin Sandsmark  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|CONFIRMED   |RESOLVED
  Latest Commit||http://commits.kde.org/dolp
   ||hin/f688bcd1f14175f1624e2ab
   ||cc6452882448467c0

--- Comment #15 from Martin Sandsmark  ---
Git commit f688bcd1f14175f1624e2abcc6452882448467c0 by Martin T. H. Sandsmark.
Committed on 16/07/2016 at 16:47.
Pushed by sandsmark into branch 'master'.

Fix scrolling on hidpi screens

Scrolling with libinput was unbearably slow.

QScrollBar is much better at scrolling than us, so let it handle it.

REVIEW: 128432

M  +1-21   src/kitemviews/kitemlistcontainer.cpp
M  +5-20   src/kitemviews/private/kitemlistsmoothscroller.cpp
M  +5-7src/kitemviews/private/kitemlistsmoothscroller.h

http://commits.kde.org/dolphin/f688bcd1f14175f1624e2abcc6452882448467c0

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Martin Sandsmark via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Martin Sandsmark  changed:

   What|Removed |Added

 CC||martin.sandsm...@kde.org

--- Comment #14 from Martin Sandsmark  ---
https://git.reviewboard.kde.org/r/128432/

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[H . H . via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #13 from H.H.  ---
Also the mouse-speed setting is ignored (pointer acceleration)

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[H . H . via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #12 from H.H.  ---
> uninstall xf86-input-libinput

thanks, that workaround works.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[FabiB via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #11 from FabiB  ---
(In reply to H.H. from comment #10)
> both are installed.

uninstall xf86-input-libinput

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[H . H . via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

H.H.  changed:

   What|Removed |Added

 CC||cyberb...@gmx.de

--- Comment #10 from H.H.  ---
@Lukasz: how do I use "xf86-input-evdev" instead of libinput? both are
installed.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Lukasz via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #9 from Lukasz  ---
Use xf86-input-evdev until fixed.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[John Choate via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

John Choate  changed:

   What|Removed |Added

 CC||jdcho...@gmail.com

--- Comment #8 from John Choate  ---
Has a solution to this been found?? I'm still seeing this in Dolphin 16.04.1,
KDE Frameworks 5.22.0, and QT 5.6.0 (built against 5.6.0), Mageia 6 (Cauldron).

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Lukasz via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Lukasz  changed:

   What|Removed |Added

 CC||dolo...@outlook.com

--- Comment #7 from Lukasz  ---
Possibly related to Bug 358765

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Larry via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #6 from Larry  ---
Does Fedora 23 use the xf86-input-libinput driver?  If not, Bug 358080 isn't a
duplicate of this though they may be related.  I see the same symptom when
using the mousewheel in the widgets list which may be another difference.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Shlomi Fish via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Shlomi Fish  changed:

   What|Removed |Added

 CC||shlo...@shlomifish.org

--- Comment #4 from Shlomi Fish  ---
I am affected by it as well here on Mageia x86-64 v6.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Emmanuel Pescosta via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Emmanuel Pescosta  changed:

   What|Removed |Added

 CC||emmanuelpescosta099@gmail.c
   ||om

--- Comment #2 from Emmanuel Pescosta  ---
(In reply to Christoph Feck from comment #1)
> Can you check if the commit from https://git.reviewboard.kde.org/r/126718/
> fixes the issue?

No I doesn't fix the issue, only changed the non-pixelDelta case.

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Emmanuel Pescosta via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

Emmanuel Pescosta  changed:

   What|Removed |Added

 Status|UNCONFIRMED |CONFIRMED
 Ever confirmed|0   |1

--- Comment #3 from Emmanuel Pescosta  ---
Looks like the bug is somewhere deeper.

https://bugzilla.redhat.com/show_bug.cgi?id=1220101
https://bugs.kde.org/show_bug.cgi?id=355410

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[dolphin] [Bug 357618] scrolling with xf86-input-libinput is unusable slow - only in dolphin

[Christoph Feck via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357618

--- Comment #1 from Christoph Feck  ---
Can you check if the commit from https://git.reviewboard.kde.org/r/126718/
fixes the issue?

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