Issue 64104

Summary: using cursor keys: very slow scrolling with templates window open
Product: Calc Reporter: enforcer2 <jens-ooo>
Component: uiAssignee: AOO issues mailing list <issues>
Status: CONFIRMED --- QA Contact:
Severity: Trivial    
Priority: P3 CC: issues, kpalagin, rainerbielefeld_ooo_qa
Version: OOo 2.0.2Keywords: needmoreinfo, oooqa
Target Milestone: ---   
Hardware: All   
OS: All   
Issue Type: DEFECT Latest Confirmation in: ---
Developer Difficulty: ---
Description Flags
example document that exhibits this behaviour none

Description enforcer2 2006-04-07 11:49:10 UTC

I am using OOo 2.0.2 on SuSE Linux and Mac OS X and both systems experience 
very slow scrolling when the F11 "Formatvorlagen" (German for Templates) 
window is opened. Plus, even scrolling an empty spreadsheet uses about 40% of 
my 1.8GHz P4 processor (for what?).

I am attaching an example spreadsheet to test this out. I tried disabling font 
antialiasing which did not change anything. The scrolling speed, and 
flickering, seems to depend on how much text is displayed (ie how full the 
cells are).

Please investigate this. If you want me to test debug builds, I'll gladly 


Comment 1 enforcer2 2006-04-07 11:49:57 UTC
Created attachment 35557 [details]
example document that exhibits this behaviour
Comment 2 Rainer Bielefeld 2006-04-07 17:23:21 UTC
WFM with with "2.0.2  German version WIN XP: [680m5(Build9011)]" on Athlon 3200+ 1GB

But I can confirm that quick vertycally scrolling of an empty a4 spreadsheet
page causes much more processor load (45%) than scrolling an empty WRITER page

How excactly do you scroll? Pushing scroll slider or ....
Any infouence whether auto spell check is disabled or enabled?

Comment 3 enforcer2 2006-04-07 18:48:40 UTC
Hello and thanks for replying!

I am scrolling with the keyboard ("down") key. Scrolling by moving the scrollbars with the mouse doesn't 
cause abnormally high CPU load.
Under MacOS, scrolling down lags (ie. the keyboard sends many more "down arrow" commands per second 
than OOo is able to handle and if you release the key it keeps scrolling), but scrolling up lags far more 
heavily, getting slower the more data of a spreadsheet you can see. My finance plan for example will have 
OOo scroll with about two lines per second, while the whole page flickers wildly (and several times per 
scroll event).
Disabling all auto spell check features didn't change anything (can you do this globally somewhere?). 
Disabling antialiasing didn't either.
Comment 4 merschmann 2007-03-15 14:32:23 UTC
Can not reproduce with OOo 2.2-RC3 on Windows XP
"OS all" is not correct according to the description
Comment 5 kpalagin 2007-03-22 05:53:08 UTC
any chance you could test with current version and provide screenshot if that 
dialog (as F11 brings "Styles and formatting" for me).
Comment 6 enforcer2 2007-04-06 19:29:44 UTC
I re-tested this again with OOo 2.2 on Linux (.deb packages, Ubuntu Edgy).

Scrolling DOWN with F11 (templates) window open is fast.
Scrolling UP with F11 windo open is still SLOW.
Plus, scrolling UP withOUT F11 windows open will get progressively slower with
each line that is scrolled.

All done with the keyboard cursor keys only. Using the mouse is always fast.

If you need any more information, please do ask.

Yes, the F11 dialog is "styles and formatting".
It lists formatting templates for the spreadsheet.

Comment 7 kpalagin 2007-04-14 07:38:00 UTC
Confirming with both 2.0.4 and 2.2 on Suse 10.2 KDE (Athlon XP 2200, 2GB of RAM,
 Nvidia FX5200). Repro steps:
1. Open attached file, do not click on ant other cell, just press and hold 
arrow down.
2. Depending on whether "Styles and Formatting" window is visible or not,
scrolling will be OK (~10 rows per second if window is closed) or very slow (~2
rows per second with window visible) with screen flickering and visible redraw.

Displaying "Styles and Formatting" after opening the file does not slow down the
scroll, only if "Styles and Formatting" is opened before file scroll is slow.
Comment 8 frank 2007-04-16 13:00:52 UTC
Hi Niklas,

please have a look at this one.

Comment 9 niklas.nebel 2007-12-04 18:07:25 UTC
retarget 2.x -> 3.x
Comment 10 Marcus 2017-05-20 11:11:23 UTC
Reset assigne to the default "".