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<body><span class="vcard"><a href="page.cgi?id=describeuser.html&login=fvogt%40suse.com" title="Fabian Vogt <fvogt@suse.com>"> <span class="fn">Fabian Vogt</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - On kwin_wayland, non-CSD GTK3 applications started with GDK_BACKEND=wayland *always* request CSD when they shouldn't"
href="https://bugzilla.gnome.org/show_bug.cgi?id=792889">bug 792889</a>
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<td>fvogt@suse.com
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - On kwin_wayland, non-CSD GTK3 applications started with GDK_BACKEND=wayland *always* request CSD when they shouldn't"
href="https://bugzilla.gnome.org/show_bug.cgi?id=792889#c28">Comment # 28</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - On kwin_wayland, non-CSD GTK3 applications started with GDK_BACKEND=wayland *always* request CSD when they shouldn't"
href="https://bugzilla.gnome.org/show_bug.cgi?id=792889">bug 792889</a>
from <span class="vcard"><a href="page.cgi?id=describeuser.html&login=fvogt%40suse.com" title="Fabian Vogt <fvogt@suse.com>"> <span class="fn">Fabian Vogt</span></a>
</span></b>
<pre>(In reply to Drew DeVault from <a href="show_bug.cgi?id=792889#c25">comment #25</a>)
<span class="quote">> Sorry, what do you expect from me? So far as I can tell Sway and GTK+ are
> both behaving as expected.</span >
GTK currently violates the decoration management protocol, which leads to the
WM assuming that it uses CSD, but GTK assuming that it has SSD -> no decoration
at all.
The protocol says:
If the client does not create a server-side decoration object for
a surface the server interprets this as lack of support for this
protocol and considers it as client-side decorated. Nevertheless a
client-side decorated surface should use this protocol to indicate
to the server that it does not want a server-side deco.
Which means that calling default_mode and getting SSD back is not enough, it
needs to be followed by a request_mode(SSD) call.</pre>
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