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Subject:	Re: Cygwin/X windowed single window mode not working properly on Windows 10
References:	<CABGn8NG85XV0A_VROCb4QEJtixEQEa=8Qy9Jqm2q2th42hfatQ AT mail DOT gmail DOT com>
Reply-To:	cygwin AT cygwin DOT com
Cc:	Yos T <yos DOT t DOT zz AT gmail DOT com>
To:	cygwin AT cygwin DOT com
From:	Jon Turney <jon DOT turney AT dronecode DOT org DOT uk>
Message-ID:	<57176E71.6090306@dronecode.org.uk>
Date:	Wed, 20 Apr 2016 12:56:33 +0100
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On 19/04/2016 10:13, Yos T wrote:
> Recently I upgraded from Win8 to Win10. I used to run Cygwin/X with a
> window manager (dwm) without any problems.
> After the upgrade this did not work properly anymore. I can still run
> the X server and dwm starts as expected. However the window does not
> seem to be refreshing/ repainting correctly. Nothing appears when I
> start an xterm and type something. When I move the mouse around and
> click a bit, parts of the screen update and I see the xterm and the
> commands I typed.
> I tried a different window manger and no window manager, but just an
> xterm, all with the same behavior.
> When I run xterm in multiwindow mode it works as expected.
> When I run in fullscreen mode (single window) everything also works as expected.
> I tried the Cygwin 64 bit version, it works in the same way.
>
> Any ideas what could cause this?

This is pretty odd.

You might try looking for updates for your display driver.

Failing that, do things work correctly if you add the '-engine 1' 
Xserver option?


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