https://bugs.documentfoundation.org/show_bug.cgi?id=100565

            Bug ID: 100565
           Summary: Graphic redraw problems with multiple windows
           Product: LibreOffice
           Version: 5.1.3.2 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: LibreOffice
          Assignee: [email protected]
          Reporter: [email protected]

Hope this is not a duplicate as I can't seem to find anything similar. If I
open two windows on the same document in Writer, either on a single monitor or
dual monitor set up in both 5.1.3 and the new 5.1.4.2 (and possible earlier
versions), I experience problems with page rendering. On the first window on
occasion as I type the page 'shakes' back and forth and the cursor is displayed
considerably to the right of where it is actually typing. The page itself
shifts from the left to the centre of the screen. Also, and possibly related,
often reformatting or doing something that causes a reformat, like deleting an
image) moves the page location to a different one to the one I am working on
(this also happens with the auto save, one minute I am in one part of the
document and then the next I am somewhere I was five minutes ago, after
autosave has finished). Writer is almost unusable when this happens as the
shaking is migraine inducing.. Going to a single window stops the problem and
the second window (when on seperate monitor) appears uneffected.

I've also noticed the effect is even more problematic when the sidebar is
turned off. Here the first screen jumps to a completely different part of the
document (so you can't see what you are typing), and the second screen also
moves to somewhere else.

The document I'm editing is graphics heavy and exhibits another image placement
bug, which may or may not relate to this problem. 

The OS is Windows 7, the graphics card is NVIDIA (750Ti), although this also
happened on an AMD card so it probably isn't a driver problem. I have tried
with Open GL both disabled and enabled with no change. When using multiple
monitors the first monitor is a 1080p wide screen monitor, while the second is
an old school 4:3.

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