[Libreoffice-bugs] [Bug 128998] New: Icons and previews are blurry with GTK3

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=128998

            Bug ID: 128998
           Summary: Icons and previews are blurry with GTK3
           Product: LibreOffice
           Version: 6.3.3.2 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: UI
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: nutzer70080 at posteo.de

Description:
Hello,

I am using LibreOffice with a HiDPI screen and noticed blurry icons in toolbar,
start center and other places with icons. Also the previews in print preview
and the document preview in start page are not sharp.

When I run in terminal ~$ SAL_USE_VCLPLUGIN=gtk lowriter the icons are shown
perfect. On Kubuntu with KDE default also no problem here. 



Steps to Reproduce:
1.Start LibreOffice on a system with HiDPI screen
2.At the beginning you should see the blurry icons


Actual Results:
Blurry icons in toolbars, no sharp previews in printing dialog or start center.

Expected Results:
Sharp previews and icons as they are availible with KDE-desktop or with
SAL_USE_VCLPLUGIN=gtk lowriter (command example).


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
I am using 
OS: Ubuntu 19.04 with Gnome 3.34.1
Graphics: Radeon RX 560 Series
Screen: 27" 3840x2160 @ 60 Hz
LibreOffice: 6.3.3.2

I tried several icon sizes and icon themes. With the svg-themes the icons are
getting more blurrier.

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