Scrolling is broken >:] [x........x] (zomg!)

[klfyt]

Basically if you Page Up / Page Down
it is much faster, suggesting
that scrollwheel implementation
might suffer from serious performance
downgrading mistakes.

Example how to delete image cache:
Chromium --> delete cached images in settings
Inkscape --> rm -r .cache/inkscape/icons/

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1832613

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[klfyt (klfyt)]

You can't just scroll up for whatever reason,
this also affects stuff like brightness, volume, etc.

1. Scroll up -> somethings breaks
2. Fix broken scrolling -> scroll to topmost position, keep scrolling down again :)

>:]

[klfyt (klfyt)]

Something breaks scrolling,
I hope you can spot the difference if
you Page Down before you start scrolling.

Fix:
Page Down before you scroll,
never touch the edges.

>:]

[klfyt (klfyt)]

This is problem with first and last row. >:]
I would like to say with quiet disappointment
that this is that x10 performance difference,
however since I lack benchmark knowledge I will
remain happy with x10 more battery life knowledge.
:p LOL (your eyes are tired!?)

>:]

[klfyt (klfyt)]

Speed reset:
page up + page down if you are near top end
page down + page up if you are near bottom end

Avoid any hindrance:
scroll without hitting top or bottom end

Affected:
Chromium browser, Thunar, etc.

[klfyt (klfyt)]

Maybe this is actually more complex performance
bug than I first suspected, seems like you just
have to play game of snake with icon list or simple
text in editor.

e.g.

  asdefg asdefg asdefg

     asdefg asdefg asdefg

  CORRECT

  asdefg asdefg asdefg
  asdefg asdefg asdefg

  WRONG

https://bugzilla.redhat.com/show_bug.cgi?id=1693960#c57

[klfyt (klfyt)]

https://bugzilla.redhat.com/show_bug.cgi?id=1693960#c60

Scroll:
Page Up or Page Down before you scroll

Slider:
Slide from edge towards center (for example window itself :) )

All hints at same basic underlying logic
mistake, something simple.

>:]

[klfyt (klfyt)]

zomg! >:] :)

[klfyt (klfyt)]

Basically I have no idea what library is Page Down. :) >:]

[klfyt (klfyt)]

https://bugzilla.redhat.com/show_bug.cgi?id=1724029

More speed >:]

[klfyt (klfyt)]

> https://bugzilla.redhat.com/show_bug.cgi?id=1693960#c74

With this and https://bugzilla.redhat.com/show_bug.cgi?id=1724029
you can fix Alt-TAB, page loading and scrolling.

:p

[klfyt (klfyt)]

> Coincidentally something hinders travel speed of text
> this is noticeable if you Page Down before you travel
> downwards with Down key.

https://bugzilla.redhat.com/show_bug.cgi?id=1693960#c76

Travel down in text? Page Down first.
Travel up in text? Page Up first.

>:]

[klfyt (klfyt)]

If you reach ends just press Page Up or Down depending
which end you met while you scrolled.

>:]

[klfyt (klfyt)]

Imho, just scrollwheel itself is broken. >:] (LOL, that bug)

[klfyt (klfyt)]

Mouse wheel and touchpad are both broken.

Doubt this is security. >:]

[klfyt (klfyt)]

Possibly related: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1835677

[klfyt (klfyt)]

One of the best ways to check if you are affected by this bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1835677
is the speed of Alt+TAB.