Package: libgtk-3-0 Version: 3.22.2-1 Severity: important GTK3 applications fail to show menus. Instead, a single white pixel appears in the upper-left corner of the screen. The issue is visible in <http://web.mit.edu/bbaren/c/32f9df7c0.png>. (I added the grey border for visibility; in reality, the white pixel is right on the edge of the screen.) When I click on a menu, I receive a bunch of GTK debugging output, which I’ve included below.
This issue appears in multiple GTK3 applications, not just Emacs. I am running xmonad, and the issue persists in both tiling and floating modes. Adding or removing a compositor (compton) doesn’t change the behaviour. The issue first appeared in GTK 3.21; downgrading to 3.20.9-1 fixes the issue. My monitor is a Dell UP2414Q, which I’m driving at 3840x2160@60 over DisplayPort1.2 with MST. I’m using an Nvidia GeForce GTX 760 with the proprietary nvidia driver. -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386, armhf Kernel: Linux 4.7.0-1-amd64 (SMP w/12 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages libgtk-3-0 depends on: ii adwaita-icon-theme 3.22.0-1 ii hicolor-icon-theme 0.15-1 ii libatk-bridge2.0-0 2.22.0-1 ii libatk1.0-0 2.22.0-1 ii libc6 2.24-5 ii libcairo-gobject2 1.14.6-1+b1 ii libcairo2 1.14.6-1+b1 ii libcolord2 1.3.3-2 ii libcups2 2.2.1-1 ii libepoxy0 1.3.1-1 ii libfontconfig1 2.11.0-6.7 ii libfreetype6 2.6.3-3+b1 ii libgdk-pixbuf2.0-0 2.36.0-1 ii libglib2.0-0 2.50.1-1 ii libgtk-3-common 3.22.2-1 ii libjson-glib-1.0-0 1.2.2-1 ii libpango-1.0-0 1.40.3-2 ii libpangocairo-1.0-0 1.40.3-2 ii libpangoft2-1.0-0 1.40.3-2 ii librest-0.7-0 0.8.0-2 ii libsoup2.4-1 2.56.0-1 ii libwayland-client0 1.11.0-2 ii libwayland-cursor0 1.11.0-2 ii libwayland-egl1-mesa [libwayland-egl1] 12.0.3-3 ii libx11-6 2:1.6.3-1 ii libxcomposite1 1:0.4.4-1 ii libxcursor1 1:1.1.14-1+b1 ii libxdamage1 1:1.1.4-2+b1 ii libxext6 2:1.3.3-1 ii libxfixes3 1:5.0.2-1 ii libxi6 2:1.7.6-1 ii libxinerama1 2:1.1.3-1+b1 ii libxkbcommon0 0.6.1-1 ii libxml2 2.9.4+dfsg1-2 ii libxrandr2 2:1.5.0-1 ii shared-mime-info 1.7-1 Versions of packages libgtk-3-0 recommends: ii libgtk-3-bin 3.22.2-1 Versions of packages libgtk-3-0 suggests: pn gvfs <none> ii librsvg2-common 2.40.16-1 -- no debconf information *** /tmp/gtk.log (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed (emacs:1657): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion 'width >= 0' failed *** BUG *** In pixman_region32_init_rect: Invalid rectangle passed Set a breakpoint on '_pixman_log_error' to debug *** BUG *** In pixman_region32_init_rect: Invalid rectangle passed Set a breakpoint on '_pixman_log_error' to debug (emacs:1657): Gtk-WARNING **: Negative content width -7 (allocation 1, extents 4x4) while allocating gadget (node arrow, owner GtkMenu) (emacs:1657): Gtk-WARNING **: Negative content width -7 (allocation 1, extents 4x4) while allocating gadget (node arrow, owner GtkMenu) *** BUG *** In pixman_region32_init_rect: Invalid rectangle passed Set a breakpoint on '_pixman_log_error' to debug (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem) (emacs:1657): Gtk-WARNING **: Negative content width -11 (allocation 1, extents 6x6) while allocating gadget (node menuitem, owner GtkMenuItem)