[Libreoffice-bugs] [Bug 108801] New: Text blurred on Retina screen with low-res monitor as second screen

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108801

            Bug ID: 108801
           Summary: Text blurred on Retina screen with low-res monitor as
                    second screen
           Product: LibreOffice
           Version: 5.3.3.2 release
          Hardware: x86-64 (AMD64)
                OS: Mac OS X (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: joost.egelie at telenet.be

Description:
Text and icons in LibreOffice are blurry (render intended for lo-res screen) on
a Mac "Retina" screen, while a low resolution monitor is attached as second
screen (Apple Thunderbolt Display in my case).

Steps to Reproduce:
1. start MacBook fresh without external monitor, launch LibreOffice, enjoy
crisp text and UI.
2. attach low resolution monitor (in my case Apple Thunderbolt Display), text
stays clean and crisp until window resize (or any redraw event).
3. unplug monitor, text in LibreOffice appears crisp instantly.

Actual Results:  
Blurred text on a Retina screen

Expected Results:
Not blurred on the Retina screen, "normal" on the low resolution monitor.


Reproducible: Always

User Profile Reset: Yes.

Additional Info:
The issue has been on and off in the bugtracker, seems all issues were closed
due to no reproducibility. No info found on second monitor combos though; I
suspect a bug in the mechanism that determines what resolution is available,
not accounting multiple screens and no awareness of which resolution the Writer
window is currently on.

A drag test with a native Apple app (Safari) over the two screens reveals the
window is shown either on one or the other screen, not floating half on both
screens at the same time. This is natural behaviour, and a suggestion for the
arising problem of what to do when a LibreOffice screen hovers over the two
different screens.

MacBook Pro Retina 15 inch mid-2015 model, as purchased from Apple in May 2017
(15,4-inch (2880 x 1800), Intel Iris Pro 1536 MB).
Apple Thunderbolt Display connected through thunderbolt (27-inch (2560 x
1440)).
MacOS X Sierra 10.12.5


User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/603.2.4
(KHTML, like Gecko) Version/10.1.1 Safari/603.2.4

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