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