Bug 144818

Summary:	Attempting to resize Style window (or others) causes hang (HiDPI)
Product:	LibreOffice	Reporter:	robert
Component:	Writer	Assignee:	Not Assigned <libreoffice-bugs>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	henrik.palomaki, ilmari.lauhakangas, vsfoote
Priority:	medium
Version:	7.2.1.2 release
Hardware:	x86 (IA32)
OS:	Windows (All)
Whiteboard:
Crash report or crash signature:		Regression By:
Bug Depends on:
Bug Blocks:	90796

Description robert 2021-09-30 02:00:59 UTC

Attempting to resize Properties / Styles / ... window on right hand side causes a looping issue that hangs the process.  It can only be killed with the Task Manager or ProcExp (SysInternals).

Version: 7.2.1.2 (x64) / LibreOffice Community
Build ID: 87b77fad49947c1441b67c559c339af8f3517e22
CPU threads: 16; OS: Windows 10.0 Build 19043; UI render: Skia/Vulkan; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL

Steps to reproduce:
Open LibreOffice Writer
Click on divider between document and Style Window (on right side).
<-> resize icon remains lit and program is hung.

Comment 1 Henrik Palomäki 2021-10-02 10:51:05 UTC

Cannot reproduce the bug. Resizing works as expected. No hanging.

Version: 7.2.1.2 (x64) / LibreOffice Community
Build ID: 87b77fad49947c1441b67c559c339af8f3517e22
CPU threads: 8; OS: Windows 10.0 Build 19043; UI render: Skia/Raster; VCL: win
Locale: fi-FI (fi_FI); UI: en-US
Calc: CL

Comment 2 Buovjaga 2021-10-06 06:58:37 UTC

Robert: does it make a difference, if you deactivate this: Tools - Options - LibreOffice - View - Use Skia for all rendering

Comment 3 robert 2021-10-19 01:30:12 UTC

Unchecking "Use Skia for all rendering" seems to make it dither faster.
If I right click on the LibreOffice Writer icon on the Windows toolbar and open another document from the previously opened documents list, I can interrupt the dithering (Jumping of the divider between the main window and the properties/styles/gallery... When it is dithering I cannot gain control of any of the open documents including LibreOffice Calc.  Opening a new LibreOffice Calc from the Calc Icon on the Windows 10 toolbar from the previously open documents will also interrupt the dithering.

Comment 4 robert 2021-10-19 01:37:18 UTC

I have done a manual reset of the user profile renaming the old on user-old and have the same issue with dithering.  Willing to test something else.

Comment 5 QA Administrators 2021-10-19 03:42:40 UTC Comment hidden (obsolete)

[Automated Action] NeedInfo-To-Unconfirmed

Comment 6 Buovjaga 2021-10-19 07:55:07 UTC

I don't get the problem on Windows either. It is weird that it is lagging for you even without the hardware accelerated Skia/Vulkan (so is not a problem with graphics drivers or something).

I guess you could install an unstable build to check how it behaves: https://dev-builds.libreoffice.org/daily/master/current.html
It installs separately and will not mess with your stable one.

Prior to 7.2, did you ever see this problem? Or are you a new user?

Comment 7 Buovjaga 2021-10-19 08:00:01 UTC

I forgot to mention that you want to use the build produced by Win-x86_64@tb77-TDF

Comment 8 robert 2021-10-19 15:43:50 UTC

I've now tested on a lower resolution external HDMI connected monitor 1920x1200 and don't see the problem...

On the Dell XPS 9710, it's UHD+ (3840 x 2400) it is consistently reproducible.

Comment 9 V Stuart Foote 2021-10-19 17:30:07 UTC

Toggle the expert configuration "Minimum width" (provided for bug 140360) boolean to "false" and it will prevent this SB resize issue on HiDPI

*** This bug has been marked as a duplicate of bug 141294 ***