Bug 140217 - [SLIDESHOW] SVG as background image is rendered in low resolution when in slideshow mode
Summary: [SLIDESHOW] SVG as background image is rendered in low resolution when in sli...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
6.3.0.4 release
Hardware: x86-64 (AMD64) Linux (All)
: medium minor
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Slide-Background
  Show dependency treegraph
 
Reported: 2021-02-06 19:42 UTC by Frédéric Bisson
Modified: 2023-02-08 03:24 UTC (History)
3 users (show)

See Also:
Crash report or crash signature:


Attachments
The ODP with the SVG background (2.81 MB, application/vnd.oasis.opendocument.presentation)
2021-02-06 19:44 UTC, Frédéric Bisson
Details
The SVG background (5.58 KB, image/svg+xml)
2021-02-06 19:44 UTC, Frédéric Bisson
Details
The PDF that was generated from the ODP (29.23 KB, application/pdf)
2021-02-06 19:45 UTC, Frédéric Bisson
Details
How the PDF is rendered in fullscreen 4K (201.61 KB, image/png)
2021-02-06 19:45 UTC, Frédéric Bisson
Details
How the ODP is rendered in fullscreen slideshow 4K (384.52 KB, image/png)
2021-02-06 19:46 UTC, Frédéric Bisson
Details

Note You need to log in before you can comment on or make changes to this bug.
Description Frédéric Bisson 2021-02-06 19:42:51 UTC
Description:
If you use an SVG image as background (whether in a slide or a master slide), the SVG is rendered at the current resolution in editing mode but in a lower resolution in slideshow thus blurring it.

This is especially visible when using 4K screens.

Any other SVG not added as background image is rendered correctly in slideshow.

Steps to Reproduce:
1. Create a new SVG called background.svg
2. Create a new presentation
3. Set background.svg as the background image of either slide or master slide
4. Run slideshow in full screen

Actual Results:
The background is blurred because it is not rendered at the screen resolution.

Expected Results:
The background should be rendered at the screen resolution.


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
Version : 6.4.7.2
Build ID : 639b8ac485750d5696d7590a72ef1b496725cfb5
Threads CPU : 8; OS : Linux 4.9; UI Render : par défaut; VCL: gtk3; 
Locale : fr-FR (fr_FR.UTF-8); Langue IHM : fr-FR
Calc: threaded
Comment 1 Frédéric Bisson 2021-02-06 19:44:01 UTC
Created attachment 169533 [details]
The ODP with the SVG background
Comment 2 Frédéric Bisson 2021-02-06 19:44:27 UTC
Created attachment 169534 [details]
The SVG background
Comment 3 Frédéric Bisson 2021-02-06 19:45:03 UTC
Created attachment 169535 [details]
The PDF that was generated from the ODP
Comment 4 Frédéric Bisson 2021-02-06 19:45:38 UTC
Created attachment 169536 [details]
How the PDF is rendered in fullscreen 4K
Comment 5 Frédéric Bisson 2021-02-06 19:46:09 UTC
Created attachment 169537 [details]
How the ODP is rendered in fullscreen slideshow 4K
Comment 6 Frédéric Bisson 2021-02-06 19:48:10 UTC
This also applies to 7.2.0.0 alpha release. It does not apply to 7.0 nor 7.1 release because the SVG as background does not work correctly in these releases for me.
Comment 7 Buovjaga 2021-02-06 20:03:43 UTC
Confirmed. Also tested with oldest of Linux 6.3 bibisect repo.

Arch Linux 64-bit
Version: 7.2.0.0.alpha0+ / LibreOffice Community
Build ID: 380ab85b6594a013f34f5e6ec69fb569336bbb48
CPU threads: 8; OS: Linux 5.10; UI render: default; VCL: kf5
Locale: fi-FI (fi_FI.UTF-8); UI: en-US
Calc: threaded
Built on 4 February 2021
Comment 8 QA Administrators 2023-02-08 03:24:42 UTC
Dear Frédéric Bisson,

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


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Warm Regards,
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