Bug 134324 - Scrolling is lagging when rendering images or tables in Ubuntu 20.04
Summary: Scrolling is lagging when rendering images or tables in Ubuntu 20.04
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
4.4.7.2 release
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: bibisectRequest, perf, regression
Depends on:
Blocks:
 
Reported: 2020-06-26 15:54 UTC by sitnarf
Modified: 2020-06-30 08:45 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


Attachments
Screencast 1 (25.46 MB, video/x-matroska)
2020-06-26 15:55 UTC, sitnarf
Details
File (619.10 KB, application/vnd.oasis.opendocument.text)
2020-06-29 12:46 UTC, sitnarf
Details
File with the issue (618.62 KB, application/vnd.oasis.opendocument.text)
2020-06-29 12:49 UTC, sitnarf
Details
Document with a table (703.47 KB, application/wps-office.docx)
2020-06-30 08:36 UTC, sitnarf
Details
Scrolling with a table (24.45 MB, video/x-matroska)
2020-06-30 08:36 UTC, sitnarf
Details

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Description sitnarf 2020-06-26 15:54:18 UTC
Description:
The issue occurs both with both hardware acceleration enabled and disabled in the LO settings. Tested the latest nightly build, the issue persists.




Steps to Reproduce:
1.Create a file
2.Insert images
3.Scroll

Actual Results:
Lagging

Expected Results:
Smooth scrolling


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
HP ZBook 15 G6
NVidia Quadro T2000
nvidia-driver-440

Version: 6.4.3.2
Build ID: 1:6.4.3-0ubuntu0.20.04.1
CPU threads: 12; OS: Linux 5.4; UI render: default; VCL: gtk3; 
Locale: en-US (en_US.UTF-8); UI-Language: en-US
Calc: threaded
Comment 1 sitnarf 2020-06-26 15:55:17 UTC
Created attachment 162430 [details]
Screencast 1
Comment 2 Telesto 2020-06-26 20:05:13 UTC
Is it possible to share an example or the file shown in the screencast demonstrating the issue
Comment 3 sitnarf 2020-06-29 12:45:53 UTC
(In reply to Telesto from comment #2)
> Is it possible to share an example or the file shown in the screencast
> demonstrating the issue

Sure. Anyway, I experience this issue to some degree also with other graphical elements like tables.
Comment 4 sitnarf 2020-06-29 12:46:13 UTC
Created attachment 162505 [details]
File
Comment 5 sitnarf 2020-06-29 12:49:55 UTC
Created attachment 162506 [details]
File with the issue
Comment 6 Telesto 2020-06-29 13:39:38 UTC
I confirm a slowdown scrolling around the image on Windows with GDI
Version: 6.4.0.0.beta1+ (x64)
Build ID: 20be5cd0bdc57d812bf34a2debfe48caa51de881
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: default; VCL: win; 
Locale: nl-NL (nl_NL); UI-Language: en-US
Calc: CL

and in 7.1 slightly faster)

FWIW, do you also have an table example (probably something different)
Comment 7 Telesto 2020-06-29 13:42:13 UTC
Also in 4.4.7.2

but not in
LibreOffice 3.5.7.2 
Build ID: 3215f89-f603614-ab984f2-7348103-1225a5
Comment 8 sitnarf 2020-06-30 08:36:00 UTC
Created attachment 162542 [details]
Document with a table
Comment 9 sitnarf 2020-06-30 08:36:37 UTC
Created attachment 162543 [details]
Scrolling with a table
Comment 10 sitnarf 2020-06-30 08:37:17 UTC
(In reply to Telesto from comment #6)
> I confirm a slowdown scrolling around the image on Windows with GDI
> Version: 6.4.0.0.beta1+ (x64)
> Build ID: 20be5cd0bdc57d812bf34a2debfe48caa51de881
> CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: default; VCL: win; 
> Locale: nl-NL (nl_NL); UI-Language: en-US
> Calc: CL
> 
> and in 7.1 slightly faster)
> 
> FWIW, do you also have an table example (probably something different)

I added another two files. Thank you.
Comment 11 Telesto 2020-06-30 08:45:58 UTC
@Xisco
But of 2 bugs in 1.. The initial report I confirm on Win (GDI) Table scrolling is fine for me (Win). Would mind to give it a try 
https://bugs.documentfoundation.org/attachment.cgi?id=162542