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Subject: Re: xwin-xdg-menu is not showing menu in taskbar
To: cygwin AT cygwin DOT com
References: <30025f38-7722-adea-2df5-b6de4b816eb4 AT scytek DOT de>
From: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
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Message-ID: <3edd1cd4-f368-3e61-d01f-e7cee0f3f265@SystematicSw.ab.ca>
Date: Tue, 20 Oct 2020 22:55:35 -0600
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On 2020-10-09 09:53, Volker Quetschke wrote:
> Well, it is showing up with two processes in the windows task manager, with one
> consuming 15% or so of the CPU, but the icon never appears in the task bar.
> 
> The system is a fresh install of cygwin 64 bit version on a new laptop - see
> attached cygcheck.out.
> 
> To reproduce this the x server is started with the "XWin Server" entry under
> "Cygwin-X" on the Start Menu.
> 
> The menu actually worked for me in the beginning and I managed to pinpoint what
> broke it. Originally I had only xorg-server, xinit and xclock installed. That
> worked, the x server and the menu came up quickly, but xclock complained about
> missing fonts. So I installed the 6 xorg-x11-fonts-* packages. That broke it.
> 
> I uninstalled the six fonts again and reinstalled them one after the other. With
> all except
>    xorg-x11-fonts-ethiopic
> installed the menu keeps working as expected. No, I didn't try yet if the
> ethiopic font breaks it again when I install it.

I just managed to restore X-Win functionality by renaming ~/.startxwinrc and
running the following commands, which I have now installed in permanent
postinstall scripts, to ensure that mime type and icon caches are updated:

$ head /etc/postinstall/zp_[ac]*.dash
==> /etc/postinstall/zp_all-icon-themes.dash <==
#!/bin/dash
# zp_all-icon-themes.dash - rebuild all icon theme caches where index exists

if [ -x /usr/bin/gtk-update-icon-cache ]
then
    for index in /usr/share/icons/*/index.theme \
                /usr/*/sys-root/*/share/icons/*/index.theme
    do
        dir=${index%/*}
        /usr/bin/gtk-update-icon-cache --force $dir || :

==> /etc/postinstall/zp_cache-shared-mime-info.dash <==
#!/bin/dash
# zp_cache-shared-mime-info.dash - rebuild shared mime info caches

[ -x /usr/bin/update-mime-database ] && [ -d /usr/share/mime ] && \
    /usr/bin/update-mime-database /usr/share/mime || :

You might also want to force rebuild the font cache by running:

	$ /etc/postinstall/zp_fontconfig_cache_1.sh

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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too much technical detail. Reader discretion is advised.
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