[Libreoffice-bugs] [Bug 122979] New: [Presentation UI] Black and white areas in the presentation when using a 2K display

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=122979

            Bug ID: 122979
           Summary: [Presentation UI] Black and white areas in the
                    presentation when using a 2K display
           Product: LibreOffice
           Version: unspecified
          Hardware: All
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Impress
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: yourenotgettingmyrealemailaddress at gmx.net

I moved from PowerPoint to Impress. Unfortunately there are graphical bugs in
Impress on the presentation display when using my 2K external display as
output(a big white rectangle and black bars). When the high-res display is the
student view and the FullHD laptop panel is the presentation view everything
works wonderful.

Reinstalling, rebooting, using other cables as well as plugging everything in
and out multiple times did not help. The normal desktop mode works well and
powerpoint has no problems in this scenario.

Even using a different laptop did not help. I tried it with my Thinkpad T580
and with a Dell Precision 7730 as well. It doesn't matter whether the internal
or the external graphics card is used. The display is connected via
DisplayPort. Turning CL off / on did not help.

Specifications of a Dell M6800 with this problem:
LibreOffice 6.1.4.2 x64; UI-Render: Standard, CPU-Threads: 8, Calc: CL
Windows 10 Pro 64 Bit Build 17763.195 (1809)
32 GB RAM / 16 GB video shared
NVIDIA Quadro K3100M Driver Build 412.16
external display: Samsung S27D850T

Images: https://postimg.cc/gallery/irqou9fi/
I will provide logs, if you tell me how to do that for Impress.

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