When you start Thunar, the black background first appears and then the Thunar window .... If you install Thunar version 1.6 .. the problem disappears
Can confirm that. Though the blackness is only visible for a splitsecond
Besides Thunar, I can see this glitch on Nemo and Caja, but not on Nautilus. I guess this is related to GTK3, the question is if Nautilus does something special to avoid this.
(In reply to Andre Miranda from comment #2) > Кроме Тунара, я вижу этот глюк на Немо и Каха, но не на Наутилусе. > Я думаю, что это связано с GTK3, вопрос в том, делает ли Nautilus что-то > особенное, чтобы избежать этого. there is the same glitch when launching the whisker menu and in xfce4-settings when entering the appearance settings
In the case of xfce4-settings, it's kinda understandable since it uses GtkPlug, i.e. it spawns another process and embeds its UI. Still, a glitch, not present in the gtk2 version.
I found this bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1370791 That lead me to this upstream bug report: https://bugzilla.gnome.org/show_bug.cgi?id=771708 Which was closed as dup of: https://bugzilla.gnome.org/show_bug.cgi?id=748498 It's very likely to be an upstream bug, but let's keep this bug open, perhaps there will come up something we can do on Thunar's side. btw, the black background can also be seem on the window edges while resizing.
This looks promising: https://gitlab.gnome.org/GNOME/gtk/commit/2ce63a86ba689aa41eb47409c889c469497478b0 Probably will be in the next release of gtk3.
Is there any update? I confirm the bug is still there with Thunar 1.8, and other windows, including Whisker menu.
This is a gtk bug.
That commit is already in the 3.23 branch, so it's safe to assume to be available in gtk 3.24, scheduled to next September.
Thank you both Oliver and Andre for clarifying.