Launchpad has imported 7 comments from the remote bug at https://bugzilla.xfce.org/show_bug.cgi?id=14577.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2018-08-03T21:19:26+00:00 Schnitzeltony wrote: Created attachment 7858 Screenshot When compositing is disabled, icons within notification area are not drawn properly. A good test case is Gnome's network-manager-applet: Do disconnect and connect again -> the green 'balls' and their shadows remain visible (see screenshot attached). Have checked: Enabling compositor works without issues. It took me a while to trace this down to xfce4-panel/systray: A look into systray.c made me aware: In systray_plugin_box_draw() and systray_plugin_box_draw_icon() there are checks that look to me as if icons are not redrawn if compositing is not enabled - but I am no expert and not sure my suspicion is correct. Maybe it is same issue as reported in https://bugzilla.xfce.org/show_bug.cgi?id=14397 Reply at: https://bugs.launchpad.net/ubuntu/+source/xfce4-panel/+bug/1797417/comments/0 ------------------------------------------------------------------------ On 2018-08-07T01:47:07+00:00 Andreldm-2 wrote: I'm almost certain it's a dup of Bug 14438, but let's keep this open for now, I would like to be sure that people working on panel (Simon, Sean?) are aware of your analysis. Reply at: https://bugs.launchpad.net/ubuntu/+source/xfce4-panel/+bug/1797417/comments/1 ------------------------------------------------------------------------ On 2018-09-24T18:09:46+00:00 Schnitzeltony wrote: Found interesting GNOME stories: * GNOME tray ICON is missing background [1] * The problem mentioned here was found at GNOME too [2]. * A GTK patch [3] that came in with gtk 3.24.0 (Side note: GNOME docs still mention explicitly that 'background of NULL means that the window will inherit its background from its parent window' [4] - which definitely not true anymore) Looking at the xfce4-panel's code in plugins/systray/systray-socket.c / systray_socket_realize (GtkWidget *widget) I think: * As soon as GTK >= 3.24 is installed, background for systray will not be painted anymore * Looking again at the patch [3] gives me an idea why some users had the problem and some not with GTK < 3.24: Those with depth of icon == depth of parent window were fine. Others already saw missing background (and uncleaned 'leftovers'). Hope that helps - although I get the feeling a fix not trivial... [1] https://gitlab.gnome.org/GNOME/gtk/issues/1280 [2] https://gitlab.gnome.org/GNOME/gtk/issues/1319 [3] https://gitlab.gnome.org/GNOME/gtk/commit/01d1bc3c75fd0eff5665f5b9c690c5e1e6c65f13 [4] https://developer.gnome.org/gdk3/stable/gdk3-Windows.html#gdk-window-set-background-pattern Reply at: https://bugs.launchpad.net/ubuntu/+source/xfce4-panel/+bug/1797417/comments/2 ------------------------------------------------------------------------ On 2018-10-09T19:33:19+00:00 Jeremy M wrote: I would like to confirm downgrading to gtk3-3.22 and the icon problem isn't present. Tested on a few workstations that have had this problem since the gtk3 package update on ArchLinux. Reply at: https://bugs.launchpad.net/ubuntu/+source/xfce4-panel/+bug/1797417/comments/3 ------------------------------------------------------------------------ On 2018-10-17T20:34:35+00:00 Simon Steinbeiß wrote: @Andreas: Your analysis seems sound, but to be honest this seems to be an issue within Gtk+3, I'm not sure how we can properly work around this in the panel reliably and without introducing ugly hacks. This may not sound encouraging, but I'm tempted to wait for Gtk+ devs to fix this in their toolkit... Reply at: https://bugs.launchpad.net/ubuntu/+source/xfce4-panel/+bug/1797417/comments/11 ------------------------------------------------------------------------ On 2018-10-17T20:35:26+00:00 Simon Steinbeiß wrote: *** Bug 14438 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/xfce4-panel/+bug/1797417/comments/12 ------------------------------------------------------------------------ On 2018-10-17T21:02:38+00:00 Simon Steinbeiß wrote: *** Bug 14397 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/xfce4-panel/+bug/1797417/comments/13 ** Changed in: xfce4-panel Status: Unknown => Confirmed ** Changed in: xfce4-panel Importance: Unknown => Medium ** Bug watch added: Xfce Bugzilla #14397 https://bugzilla.xfce.org/show_bug.cgi?id=14397 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1797417 Title: Background of system tray icons not drawn properly To manage notifications about this bug go to: https://bugs.launchpad.net/xfce4-panel/+bug/1797417/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
