Package: gnome-shell Version: 3.14.2-3+b1 Severity: normal When GNOME desktop is configured to raise and focus windows on click, and one clicks on a window title bar to raise it, sometimes the window remains "grabbed" for moving. This appears to be due to failure to handle mouse-up events, because a quick click will often cause this behavior whereas a slow click-hold-release never causes the behavior.
To ensure that this was not just someone's strange idea of useful behavior, I also experimented and found that the same is true for window resize: if you mouse over a low window's edge until you get the resize icon, short clicks sometimes result in the mouse remaining in resize mode after the window is raised, while a click-hold-release never does. It would be hard to imagine such behavior being considered useful. I have verified that xev does consistently register ButtonRelease events (and of course so does evtest) so the events are being lost higher up than at the raw input level. When using xev as one of the test windows, you can see a NotifyGrab event being delivered to the application with no immediate NotifyRelease event after it, when the problem happens, and when the problem does not happen, you see a NotifyRelease immediately. Oddly enough, at least on this laptop, this behavior is significantly easier to reproduce on the touchpad hardware buttons than it is to replicate with buttons that belong to the nipplemouse device, so if replicating please try a few different pointing devices since some may have slow rebound/debounce. Expected behavior: no matter how quickly you press+release the mouse button, after a window is raised it will be released and not follow the mouse elsewhere or resize. Filing this on gnome-shell as I do not know what most of the plethora of other subcomponents actually do these days. -- System Information: Debian Release: 8.0 APT prefers testing-updates APT policy: (500, 'testing-updates'), (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 3.16.0-4-amd64 (SMP w/4 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 gnome-shell depends on: ii dconf-gsettings-backend [gsettings-back 0.22.0-1 ii evolution-data-server 3.12.9~git20141128.5242b0-2+deb8u1 ii gir1.2-accountsservice-1.0 0.6.37-3+b1 ii gir1.2-atspi-2.0 2.14.0-1 ii gir1.2-caribou-1.0 0.4.15-1 ii gir1.2-clutter-1.0 1.20.0-1 ii gir1.2-freedesktop 1.42.0-2.2 ii gir1.2-gcr-3 3.14.0-2 ii gir1.2-gdesktopenums-3.0 3.14.1-1 ii gir1.2-gdm3 3.14.1-6 ii gir1.2-gkbd-3.0 3.6.0-1 ii gir1.2-glib-2.0 1.42.0-2.2 ii gir1.2-gnomebluetooth-1.0 3.14.0-2 ii gir1.2-gnomedesktop-3.0 3.14.1-1 ii gir1.2-gtk-3.0 3.14.5-1 ii gir1.2-ibus-1.0 1.5.9-1 ii gir1.2-mutter-3.0 3.14.2-1 ii gir1.2-networkmanager-1.0 0.9.10.0-6 ii gir1.2-nmgtk-1.0 0.9.10.0-2 ii gir1.2-pango-1.0 1.36.8-3 ii gir1.2-polkit-1.0 0.105-8 ii gir1.2-soup-2.4 2.48.0-1 ii gir1.2-telepathyglib-0.12 0.24.1-1 ii gir1.2-telepathylogger-0.2 0.8.1-1 ii gir1.2-upowerglib-1.0 0.99.1-3.1 ii gjs 1.42.0-1 ii gnome-backgrounds 3.14.1-1 ii gnome-icon-theme-symbolic 3.12.0-1 ii gnome-settings-daemon 3.14.2-3 ii gnome-shell-common 3.14.2-3 ii gnome-themes-standard 3.14.2.2-1 ii gsettings-desktop-schemas 3.14.1-1 ii libatk-bridge2.0-0 2.14.0-2 ii libatk1.0-0 2.14.0-1 ii libc6 2.19-15 ii libcairo2 1.14.0-2.1 ii libcanberra-gtk3-0 0.30-2.1 ii libcanberra0 0.30-2.1 ii libclutter-1.0-0 1.20.0-1 ii libcogl-pango20 1.18.2-3 ii libcogl20 1.18.2-3 ii libcroco3 0.6.8-3+b1 ii libdbus-glib-1-2 0.102-1 ii libecal-1.2-16 3.12.9~git20141128.5242b0-2+deb8u1 ii libedataserver-1.2-18 3.12.9~git20141128.5242b0-2+deb8u1 ii libgcr-base-3-1 3.14.0-2 ii libgdk-pixbuf2.0-0 2.31.1-2+b1 ii libgirepository-1.0-1 1.42.0-2.2 ii libgjs0e [libgjs0-libmozjs-24-0] 1.42.0-1 ii libglib2.0-0 2.42.1-1 ii libgstreamer1.0-0 1.4.4-2 ii libgtk-3-0 3.14.5-1 ii libical1a 1.0-1.3 ii libjson-glib-1.0-0 1.0.2-1 ii libmozjs-24-0 24.2.0-2 ii libmutter0e 3.14.2-1 ii libnm-glib4 0.9.10.0-6 ii libnm-util2 0.9.10.0-6 ii libpango-1.0-0 1.36.8-3 ii libpangocairo-1.0-0 1.36.8-3 ii libpolkit-agent-1-0 0.105-8 ii libpolkit-gobject-1-0 0.105-8 ii libpulse-mainloop-glib0 5.0-13 ii libpulse0 5.0-13 ii libsecret-1-0 0.18-1+b1 ii libstartup-notification0 0.12-4 ii libsystemd0 215-12 ii libtelepathy-glib0 0.24.1-1 ii libx11-6 2:1.6.2-3 ii libxfixes3 1:5.0.1-2+b2 ii mutter 3.14.2-1 ii python 2.7.8-4 ii telepathy-mission-control-5 1:5.16.3-1 Versions of packages gnome-shell recommends: ii gdm3 3.14.1-6 ii gkbd-capplet 3.6.0-1 ii gnome-contacts 3.14.1-1 ii gnome-control-center 1:3.14.2-3 ii gnome-user-guide 3.14.1-1 ii unzip 6.0-16 gnome-shell suggests no packages. -- no debconf information
