Bug Hunting Session
Bug 114783 - Display size of document on a HDMI attached Monitor is more than twice the expected size
Summary: Display size of document on a HDMI attached Monitor is more than twice the ex...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: graphics stack (show other bugs)
Version:
(earliest affected)
4.0.6.2 release
Hardware: x86-64 (AMD64) Mac OS X (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Multimonitor
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Reported: 2017-12-31 17:21 UTC by Uwe Altmann
Modified: 2019-02-15 06:44 UTC (History)
2 users (show)

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Crash report or crash signature:


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Description Uwe Altmann 2017-12-31 17:21:09 UTC
Display size of all LO documents (writer, draw, calc...) on an attached (additional) monitor differs by kind of attachment: via HDMI it's about 220% bigger then the size shown on the same Monitor attached to the same notebook via DVI (which shows the normal size).

Test: draw a line with a width of 10cm. Measure the length of the line on the monitor when zoom is at 100% with a wooden ruler. Normally you get also about 10cm. On a monitor attached via HDMI I get 22cm.
You may also just measure the shown rulers (from "View" menu).

In other words - I have to zoom down the display slider in the status bar down to 45% for all documents I work with on this monitor to have an normal size.

No other application on the Mac is affected by this effect, only LO.
Comment 1 Uwe Altmann 2017-12-31 17:27:43 UTC
4.0.6 is the oldest one I've got her for testing. Maybe all version are affected.
Comment 2 Aron Budea 2018-01-04 22:52:27 UTC
That's interesting. What's the resolution of the displays? Also, could you list the latest version you tried as well?
Comment 3 Uwe Altmann 2018-01-05 10:26:29 UTC
Displays are:
MacBook Air Display: 1440 x 900, 24-Bit Color (ARGB8888)
SyncMaster: 1680 x 1050 @ 60 Hz, 24-Bit Color (ARGB8888) (as main monitor)

My latest used Version is 5.4.4. Just tried 6.0.0.1 - same behavior.
Comment 4 Uwe Altmann 2018-01-12 11:14:01 UTC
Opening the Help-System, left side of the window (Navigation with dropdown list and tabs for Content, Index, Search..) all is normal size. 
Only the help content itself (right side of the window) is displayed oversized.
Comment 5 Alex Thurgood 2018-04-05 08:43:04 UTC
@Uwe: I can't reproduce this with LO5451 connecting from my Retina MBPro15 to a 1080p compatible HDMI monitor.

How is your external monitor set up in the OS system settings :

- optimized for monitor ?
- scaled (and if so, which scale setting/resolution) ?

By default, my external monitor is set to 1366x768 under the optimized setting.
If I choose any of the hires scaled settings (1080p, 1080i, 720), the whole system display needs to be adjusted to fit correctly on screen.
Comment 6 QA Administrators 2018-10-09 11:27:05 UTC Comment hidden (obsolete)
Comment 7 Uwe Altmann 2018-10-18 12:48:55 UTC
(In reply to Alex Thurgood from comment #5)
> How is your external monitor set up in the OS system settings :
> 
> - optimized for monitor ?
> - scaled (and if so, which scale setting/resolution) ?


Each one is set to "Standard for Monitor".
Monitors are not synchronized; you'll see "Optimized for..." only when different Monitors are synchronized.
Comment 8 Alex Thurgood 2019-02-15 06:43:31 UTC
Confirmed with

Version: 6.2.0.3
Build ID: 98c6a8a1c6c7b144ce3cc729e34964b47ce25d62
Threads CPU : 4; OS : Mac OS X 10.14.2; UI Render : par défaut; VCL: osx; 
Locale : fr-FR (fr_FR.UTF-8); Langue IHM : fr-FR
Calc: threaded

1) In Writer, click on the Insert Line button in the main toolbar.
2) Draw a 100 mm line using the onscreen ruler as a guide.
3) Set the page zoom of the Writer document to 100%
4) Measure the line with a physical ruler : actual length 145 mm
5) Reducing Writer page zoom to 69% displays an actual 100 mm line.
Comment 9 Alex Thurgood 2019-02-15 06:44:18 UTC
HDMI connected Mac mini(2014) with screen resolution of 1920 x 1080