It may not happen with a short text, but is clearly visible, when the text is long. When the mouse enters and exits the area, the text - or part of it - disappears for a moment, as if it is being refreshed. I attach an example. My computer may not be the fastest (Windows 10 64-bit Intel Pentium N4200 1.1 GHz), but I haven't noticed the same, when I open the file with OpenOffice.
Created attachment 142301 [details] Text flickers in text box while moving mouse over it
Tried this one. Opened the form, could set the cursor in the area without any problem. My system: OpenSUSE 42.3 64bit rpm Linux Tested with LO 6.0.4.2
Created attachment 142315 [details] Video showing the phenomenon Okay, so it looks like it is a Windows-specific problem. I attach the video here.
To me, this sounds like a duplicate of bug 71087, applied to the form control object in Writer. Some of the suggestions there are to try with OpenGL acceleration turned off or on, to see which gives the better result, and to update one's Nvidia graphics drivers if the computer has such a chip.
OpenGL does make a difference! I turned it on, and the flickering is gone. I cannot test Nvidia though, I don't have it.
@Stuart : what's your take on this ?
Hello Balint Fodor, Some changes have been done to OpenGL recently. Could you please try to reproduce it with the latest version of LibreOffice from https://www.libreoffice.org/download/libreoffice-fresh/ ? I have set the bug's status to 'NEEDINFO'. Please change it back to 'UNCONFIRMED' if the bug is still present in the latest version.
Dear Balint Fodor, 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
Dear Balint Fodor, Please read this message in its entirety before proceeding. Your bug report is being closed as INSUFFICIENTDATA due to inactivity and a lack of information which is needed in order to accurately reproduce and confirm the problem. We encourage you to retest your bug against the latest release. If the issue is still present in the latest stable release, we need the following information (please ignore any that you've already provided): a) Provide details of your system including your operating system and the latest version of LibreOffice that you have confirmed the bug to be present b) Provide easy to reproduce steps – the simpler the better c) Provide any test case(s) which will help us confirm the problem d) Provide screenshots of the problem if you think it might help e) Read all comments and provide any requested information Once all of this is done, please set the bug back to UNCONFIRMED and we will attempt to reproduce the issue. Please do not: a) respond via email b) update the version field in the bug or any of the other details on the top section of our bug tracker Warm Regards, QA Team MassPing-NeedInfo-FollowUp
The bug is still present, when OpenGL is not turned on.
Version: 6.2.3.2 (x64)
Confirmed on Windows 10 Home 64-bit en-US (1809) with Version: 6.4.0.0.alpha0+ (x64) Build ID: 87238627b025ee6aa61378667e56b1769d4460c2 CPU threads: 4; OS: Windows 10.0; UI render: default; VCL: win; TinderBox: Win-x86_64@42, Branch:master, Time: 2019-06-09_03:04:32 Locale: en-US (en_US); UI-Language: en-US Calc: threaded Setting rendering to default (Tools -> Options -> View unchecking Use OpenGL) opening this Base document, and selecting Form1 which opens into Form edit view. On mouse over of the Text box its text will flicker, as will entering the Text box and scrolling the text, as will selection of the text. This is a rendering issue in refreshing the canvas, seems the same as bug 118856 for the Help -> About dialog. And the similar form design mode bug 96500 For bug 113714 issue with Main menu, Miklos fixed that [1] adjusting from direct RenderContext to use a buffer--effectively double buffered. IIUC OpenGL and GTK3 rendering already does the double buffering, so they are not affected. Enabling OpenGL rendering (and verifying it took) the "flicker" will vanish--on the Base Form1 view, and on the Help -> About dialog. =-ref-= [1] https://gerrit.libreoffice.org/#/c/72610/
QA - taming the overlong summary
Dear Balint Fodor, To make sure we're focusing on the bugs that affect our users today, LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed bugs which have not been touched for over a year. There have been thousands of bug fixes and commits since anyone checked on this bug report. During that time, it's possible that the bug has been fixed, or the details of the problem have changed. We'd really appreciate your help in getting confirmation that the bug is still present. If you have time, please do the following: Test to see if the bug is still present with the latest version of LibreOffice from https://www.libreoffice.org/download/ If the bug is present, please leave a comment that includes the information from Help - About LibreOffice. If the bug is NOT present, please set the bug's Status field to RESOLVED-WORKSFORME and leave a comment that includes the information from Help - About LibreOffice. Please DO NOT Update the version field Reply via email (please reply directly on the bug tracker) Set the bug's Status field to RESOLVED - FIXED (this status has a particular meaning that is not appropriate in this case) If you want to do more to help you can test to see if your issue is a REGRESSION. To do so: 1. Download and install oldest version of LibreOffice (usually 3.3 unless your bug pertains to a feature added after 3.3) from https://downloadarchive.documentfoundation.org/libreoffice/old/ 2. Test your bug 3. Leave a comment with your results. 4a. If the bug was present with 3.3 - set version to 'inherited from OOo'; 4b. If the bug was not present in 3.3 - add 'regression' to keyword Feel free to come ask questions or to say hello in our QA chat: https://kiwiirc.com/nextclient/irc.freenode.net/#libreoffice-qa Thank you for helping us make LibreOffice even better for everyone! Warm Regards, QA Team MassPing-UntouchedBug