Created attachment 120098 [details] Screenshot of the bug When scrolling the text document down using the up and down keyboard button (i.e. skipping the text lines up and down), the text lines offer appear broken or scrambled: the text is either not completely visible or it appears double. Please see the attached screenshot. It kind of happens when a new line of text becomes visible at the top or bottom of the text area. Doesn't happen when scrolling the text with a mouse wheel. Different zoom views also have an effect on this. Possibly related to 58358?
I could not reproduce it with LO 5.0.3.2, Win 8.1. Do you have this only with a specific document or can you also reproduce it with a new test page?
I can reproduce this with any relatively long text document (several pages, at least).
(In reply to Daniel T. from comment #2) > I can reproduce this with any relatively long text document (several pages, > at least). Thanks for your very fast reply. Maybe it is a Linux only issue. And maybe somebody else can reproduce and confirm it.
Any difference, if you toggle Tools - Options - LibO - View - Use OpenGL for all rendering?
With option "Use OpenGL for all rendering" checked, I indeed cannot reproduce the bug. But the scrolling both with mouse wheel and keyboard gets VERY painfully slow.
Would it be possible to give more information about your computer? CPU, RAM, distro with version and also which graphical card driver you are using. It would be great to also get the output of glxinfo if possible. (that command is usually part of the one of the mesa packages, possibly demos or utils). Set this as UNCONFIRMED when you answer please.
Created attachment 126946 [details] Screenshot rendering Writer
(In reply to E Moen from comment #7) > Created attachment 126946 [details] > Screenshot rendering Writer Are you using Windows or Linux? What are your OpenGL settings?
Dear Bug Submitter, This bug has been in NEEDINFO status with no change for at least 6 months. Please provide the requested information as soon as possible and mark the bug as UNCONFIRMED. Due to regular bug tracker maintenance, if the bug is still in NEEDINFO status with no change in 30 days the QA team will close the bug as INSUFFICIENTDATA due to lack of needed information. For more information about our NEEDINFO policy please read the wiki located here: https://wiki.documentfoundation.org/QA/Bugzilla/Fields/Status/NEEDINFO If you have already provided the requested information, please mark the bug as UNCONFIRMED so that the QA team knows that the bug is ready to be confirmed. Thank you for helping us make LibreOffice even better for everyone! Warm Regards, QA Team MassPing-NeedInfo-Ping-20170131
> Are you using Windows or Linux? What are your OpenGL settings? I'm using Linux. Both OpenGL options are off/unchecked.
Hmm.. I was actually asking from E Moen, but the email was not in CC. E Moen: do you still see this problem? Are you using Windows or Linux? What are your OpenGL settings? To all: are you still seeing this in 5.3?
(In reply to daniel.tkatch from comment #10) > > Are you using Windows or Linux? What are your OpenGL settings? > > I'm using Linux. > Both OpenGL options are off/unchecked. Are you using the latest version of LibreOffice from https://www.libreoffice.org/download/libreoffice-fresh/ ?
Created attachment 131558 [details] Example 1 of rendering problems after scrolling
Created attachment 131559 [details] Example 2 of rendering problems after scrolling
Created attachment 131560 [details] Example 3 of rendering problems after scrolling
Created attachment 131561 [details] Example 4 of rendering problems after scrolling
(In reply to Buovjaga from comment #11) > Hmm.. I was actually asking from E Moen, but the email was not in CC. > > E Moen: do you still see this problem? Are you using Windows or Linux? What > are your OpenGL settings? > > To all: are you still seeing this in 5.3? This has improved from earlier versions but is still not entirely gone. See the pictures I provided. Currently I am on: Versie: 5.1.6.2 Build ID: 07ac168c60a517dba0f0d7bc7540f5afa45f0909 CPU Threads: 4; Versie besturingssysteem:Windows 6.2; UI Render: standaard; Locale: nl-NL (nl_NL); Calc: group The rendering problems occur when scrolling through a (large) document immediately followed by a selection of some lines of text or some table rows. Cheers, E. Moen
Let's put Daniel's other address to CC as well.
E Moen: could you also try with version 5.3? I could not reproduce on Linux. I tried with Getting started with LibreOffice document. I tried scrolling with keyboard, mouse, after selection etc. Is Daniel also still seeing this with 5.3? Arch Linux 64-bit, KDE Plasma 5 Version: 5.4.0.0.alpha0+ Build ID: ed0e8f970ff552e75222dc92ed2879aa3b3e5851 CPU threads: 8; OS: Linux 4.9; UI render: default; VCL: kde4; Locale: fi-FI (fi_FI.UTF-8); Calc: group Built on March 4th 2016
I'm no longer seeing this. Current version: 5.2.5.1.
Thanks, Daniel. Let's put to WFM for now.