Issue 14988 - Screen image defects, particularly with smooth scrolling
Summary: Screen image defects, particularly with smooth scrolling
Alias: None
Product: Writer
Classification: Application
Component: code (show other issues)
Version: OOo 1.0.3
Hardware: All Other OS
: P3 Trivial with 6 votes (vote)
Target Milestone: ---
Assignee: AOO issues mailing list
QA Contact:
: 72639 113667 (view as issue list)
Depends on:
Reported: 2003-05-28 00:24 UTC by dnwilson
Modified: 2017-05-20 11:15 UTC (History)
3 users (show)

See Also:
Issue Type: DEFECT
Latest Confirmation in: ---
Developer Difficulty: ---

image shows screen scrolling defects (62.51 KB, image/jpeg)
2003-05-28 00:26 UTC, dnwilson
no flags Details
An example of a pixal line missing (23.38 KB, image/jpeg)
2003-09-17 03:58 UTC, dnwilson
no flags Details

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Description dnwilson 2003-05-28 00:24:27 UTC
This is a problem that has been in Openoffice for at least version 1.0 I experience probplems 
with incorrect scrolling leaving image defects which are fixed in the image is refreshed.  
I get other screen leftovers sometimes with removing unerlining, or with the red spelling error 
lines although these are hard to reproduce.  
Smooth scrolling is particularly bad at this and is unusable. see the screen image attached. 
I use Linux Mandrake 9, Xfree86, version 1.03, I have a Virge GX/DX vidio card.
Comment 1 dnwilson 2003-05-28 00:26:12 UTC
Created attachment 6482 [details]
image shows screen scrolling defects
Comment 2 Joost Andrae 2003-05-28 13:29:15 UTC
JA: reassigning issue. Reproducible even on WinXP. Activate "Smooth
Scrooling" in "/tools/options/text document/view". Create a multi page
dummy text document and click into the scoll bar: --> repaint
problems. AMA said this migh be something for you...
Comment 3 h.ilter 2003-05-28 13:45:11 UTC
HI->OD: It depends also from view-zoom. I could better reproduce it
with 112%
Comment 4 Oliver-Rainer Wittmann 2003-06-16 10:43:51 UTC
OD (16.06.2003):
Reproduced in internal build SRX645m5 and accepted.
Comment 5 stefan.baltzer 2003-07-03 14:13:04 UTC
SBA->OD: On my Win2k machine (P500) it scrolls too fast and brings a
lot of repaint problems too. On the X systems I had a look at
(Solaris8 and UnitedLinux, smooth scrolling doesn't seem to work at
all in 645m9.
Comment 6 dnwilson 2003-08-12 08:26:26 UTC
Screen scrolling problems in Ooo1.1RC2  
Smooth Scrolling still has lots of problems. There are still screen  
scrolling defects (repaint issues) but it seems very sensitive to  
zoom settings. Under some zoom settings seem to be almost ok (e.g.  
the default 100%) but other zoom settings totally mess up the  
screen. Some times smooth scrolling works for scrolling down, but  
not for scrolling up. Sometimes it also works is a jerky manner  
suddenly speeding up for a while (almost as if there are bits it  
does not approve of and is skipping over them)and then reverting to  
the normal speed.   
Neither the mouse wheel nor 'Auto Scrolling' (with the special  
scrolling icon called up by the middle mouse key) uses smooth  
scrolling when it is set. It this a bug or a 'feature' of mouse use?  
Comment 7 dnwilson 2003-08-16 23:56:47 UTC
I have tried OOo1.1RC3 It seems a bit better, but still jumpy in 
Comment 8 Oliver-Rainer Wittmann 2003-09-09 10:29:58 UTC
Comment 9 dnwilson 2003-09-17 03:56:40 UTC
The smooth scrolling jumpyness seems to be fixed.  
But there are still some small screen defects.  However 
a big improvement on the first screen-problem.jpeg. 
The still seem to be two types of defects - a line or two of pixals 
missing (see small.jpeg) or a line or two of pixals to many - making 
tall characters. 
Comment 10 dnwilson 2003-09-17 03:58:58 UTC
Created attachment 9391 [details]
An example of a pixal line missing
Comment 11 ulf.stroehler 2003-10-02 09:29:21 UTC
According to the roadmap
( this issue was retargeted to
OOo Later.
Comment 12 deracus 2010-01-19 11:45:32 UTC
Error still exists - Using OOo 3.1.1 with Win Vista 32 bit and latest drivers
for my Geforce 8600 Card..
Comment 13 robinkiwi 2010-01-19 17:53:46 UTC
I want to say that this MATTERS! If people see a defective screen image they
cannot help getting a poor view of what is, at heart, a very good product.
Someone PLEASE give this issue a high degree of urgency.
Comment 14 Oliver-Rainer Wittmann 2010-01-20 07:13:52 UTC
I will have a deeper look at this issue in the next days/weeks - please stay tuned
Comment 15 androbi 2010-01-20 11:11:20 UTC
Every time the same problem in the last versions and now as well in OOo 3.1.1 on
WIN XP. But when you have some image defects, you can push CTR+ALT+R to
recalibrate the screen image.

Last time I had the impression, that the problem doesn't occur so often, when I
have deactivated Java runtime environment.

However, I hope for a soon solution!
Comment 16 Oliver-Rainer Wittmann 2010-01-21 11:28:14 UTC
Investigation reveals the following:
Defect cause is the special alignment of text lines in text documents to assure
that neighbor text lines do not by accident overlap on certain screen positions.
The scrolling does not consider/perform this alignment. Thus, sometimes a pixel
line is missing or duplicated.

Possible solution:
Do not use intrinsic window scrolling methods, but use direct painting for
scrolling through the text document.
Comment 17 stefan.baltzer 2010-02-09 07:19:41 UTC
*** Issue 72639 has been marked as a duplicate of this issue. ***
Comment 18 stefan.baltzer 2010-02-09 07:22:53 UTC
CCing myself.
Comment 19 grillon 2010-05-25 20:22:55 UTC
Me too, with this setup:
OOO320m12 Build 9483 (BrOffice)
Windows 2000 SP4
SiS660 onboard video
ECS 661GX-M v1.0B mobo
Celeron 2.4GHz

I don't use smooth scrolling. It sometimes happens when I change fonts type,
style and size (tested with Arial and Times, normal and bold, 12 and 14) or markers.
Comment 20 michael.ruess 2010-08-05 11:15:29 UTC
*** Issue 113667 has been marked as a duplicate of this issue. ***
Comment 21 Marcus 2017-05-20 11:15:37 UTC
Reset assigne to the default "".