[SOLVED] mouse scrolling issue

merilius · 2019-03-26 22:22:01

Hi,

Today or yesterday scrolling behaviour has changed. One scroll 'tick' up or down of my Logitech Performance MX mouse amounts for more scroll in applications.
I debugged: one tick sends multiple libinput events:
One scroll tick up or one scroll tick down results in 8 libinput events!

 event5   POINTER_AXIS      +5.98s      vert -15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +5.99s      vert -15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +6.00s      vert -15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +6.01s      vert -15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +6.02s      vert -15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +6.03s      vert -15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +6.03s      vert -15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +6.04s      vert -15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +6.99s      vert 15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +7.01s      vert 15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +7.02s      vert 15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +7.03s      vert 15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +7.05s      vert 15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +7.05s      vert 15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +7.06s      vert 15.00* horiz 0.00 (wheel)
 event5   POINTER_AXIS      +7.08s      vert 15.00* horiz 0.00 (wheel)

I have two mice. In the case of the second mouse Logitech MX 510 it is still one event per scroll tick as it used to be.

 event1   POINTER_AXIS      +9.38s      vert -15.00* horiz 0.00 (wheel)
 event1   POINTER_AXIS      +9.80s      vert 15.00* horiz 0.00 (wheel)

I am running lts kernel: 4.14.56-1-lts. DE is Plasma.

Edit, SOLVED: I was running an old kernel. Meanwhile HiDPI patches probably hit the repo, and this most likely caused an issue. Now on kernel 5.0.6 everything is back to normal.

Last edited by merilius (2019-04-04 18:48:07)

seth · 2019-03-27 07:32:10

Sounds related to https://bbs.archlinux.org/viewtopic.php … 5#p1838725

1. Did you update stuff (notably libinput)
2. Why are you running a dead-old kernel? (The current lts is 4.19.31)

merilius · 2019-03-27 12:42:53

1. I update stuff on a daily basis.
2. I ran old kernel because I know of these HiDPI patches in 5.0, so I wanted to test if it has anything to do with them. Normally I would be running the latest stable kernel. I think I locked kernel-lts version in the past because of some bug, that's why it is't latest.

seth · 2019-03-27 13:07:01

So did you check what packages were updated during the critical period?
15*8 is 120, so this sound *heavily* related to the hi-res patches and (since you're on an old kernel) likely libinput generating enough 15° tics to generate one 120° "click".

merilius · 2019-04-04 18:46:03

I did not check what updates were run.
Now I have rebooted to 5.0.6-arch1-1-ARCH and the problem is gone. Both mice send +-15.00 vertical scroll on one tick.

Arch Linux

#1 2019-03-26 22:22:01

[SOLVED] mouse scrolling issue

#2 2019-03-27 07:32:10

Re: [SOLVED] mouse scrolling issue

#3 2019-03-27 12:42:53

Re: [SOLVED] mouse scrolling issue

#4 2019-03-27 13:07:01

Re: [SOLVED] mouse scrolling issue

#5 2019-04-04 18:46:03

Re: [SOLVED] mouse scrolling issue

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