Bug#1049423: gnome-calculator: takes 55 seconds to start

[Vincent Lefevre]

Control: reassign -1 src:gtk4
Control: retitle -1 GTK4 applications start with a 25- or 50-second delay when using X11 forwarding
Control: found -1 4.10.5+ds-3

On 2023-08-15 15:41:02 -0400, Jeremy Bícha wrote:
> On Tue, Aug 15, 2023 at 3:31 PM Vincent Lefevre <vincent at vinc17.net> wrote:
> > On 2023-08-15 11:42:53 -0400, Jeremy Bícha wrote:
> > > Are you able to reproduce this issue with any other apps?
> >
> > I've just tried baobab (which happens to be installed).
> > Also a 55-second delay, with the error
> >
> > (baobab:2311599): Gtk-CRITICAL **: 21:27:19.847: Unable to register the application: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
> >
> > For gnome-terminal, I get only a 25-second delay (like in bug 1018880),
> 
> gnome-terminal is a GTK3 app. Baobab and gnome-calculator now use GTK4
> and libadwaita. A lot of GNOME apps now use GTK4 and libadwaita. Maybe
> this is a general problem for GTK4 apps. If so, please reassign this
> bug to src:gtk4

In my strace output, process 2311127 (involved in the last 2 timeouts)
appears to be related to libadwaita as it reads files with "Adwaita"
in the pathnames.

> transmission-gtk and megapixels are some of the few GTK4 apps in
> Debian that don't use libadwaita.

transmission-gtk takes 40 seconds to make windows appear, but it starts
(X11-related?) network activity after only 25 seconds. In the strace
output, there's a 14-second timeout immediately followed by a 11-second
timeout, and no other timeouts (the other 15 seconds are probably due
to network activity).

-- 
Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)