Bug 422266

Summary: Page up/down extremely slow in 1.10.1
Product: [Applications] okular Reporter: ju.orth
Component: generalAssignee: Okular developers <okular-devel>
Status: RESOLVED FIXED    
Severity: major CC: aacid, ju.orth, keziolio123, nate, oliver.sander
Priority: NOR    
Version First Reported In: 1.10.1   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In: 1.11
Sentry Crash Report:
Attachments: demonstration of the problem

Description ju.orth 2020-05-30 20:11:28 UTC
Created attachment 128936 [details]
demonstration of the problem

Scrolling via page up/down is extremely slow in 1.10.1. Downgrading to 1.10.0 fixes the issue.


STEPS TO REPRODUCE

1. Open any PDF
2. Hold page down


OBSERVED RESULT

The document scrolls slower than when you hold cursor up/down.


EXPECTED RESULT

The document scrolls very quickly. Like in 1.10.0.


SOFTWARE/OS VERSIONS

Arch Linux


ADDITIONAL INFORMATION

In the attached video I first hold cursor down to scroll downwards. Then I hold page up to scroll upwards.
Comment 1 ju.orth 2020-05-30 20:30:13 UTC
Reverting 08d368c13b0fa7368be9720b8de1b7a67188b8e9 fixes the issue.

cc https://bugs.kde.org/show_bug.cgi?id=420492
Comment 2 Nate Graham 2020-06-10 22:21:41 UTC
Whenever you fix one thing, another thing breaks :'(
Comment 3 Laura David Hurka 2020-11-06 17:33:48 UTC
AFAIK this has been fixed by allowing repeated scroll events.