Bug#842730: konsole: Dragging tabs lag

[Francois Gouget <fgouget@free.fr>]

Package: konsole
Version: 4:16.08.2-1
Severity: normal

Dear Maintainer,

When one tries to drag a tab there is a lot of lag at the start of the
drag gesture. As a result the tab is likely to be trailing the mouse
pointer by inches so that figuring out where the tab will end up is
quite confusing.

For a bug such as this a video is worth a million words so I recorded a
drag session and uploaded it there:

http://fgouget.free.fr/tmp/konsole-drag-16.08.2.ogv

Note that this is not a new bug: it has been there for at least a year.

The workaround is to mark a pause between pressing the left mouse button
and dragging the mouse around.

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.7.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages konsole depends on:
ii  konsole-kpart         4:16.08.2-1
ii  libc6                 2.24-5
ii  libkf5completion5     5.27.0-1
ii  libkf5configcore5     5.27.0-1
ii  libkf5configgui5      5.27.0-1
ii  libkf5configwidgets5  5.27.0-1
ii  libkf5coreaddons5     5.27.0-1
ii  libkf5crash5          5.27.0-1
ii  libkf5dbusaddons5     5.27.0-1
ii  libkf5i18n5           5.27.0-2
ii  libkf5iconthemes5     5.27.0-1
ii  libkf5kiowidgets5     5.27.0-1
ii  libkf5notifyconfig5   5.27.0-1
ii  libkf5widgetsaddons5  5.27.0-1
ii  libkf5windowsystem5   5.27.0-1
ii  libkf5xmlgui5         5.27.0-1
ii  libqt5core5a          5.6.1+dfsg-3+b1
ii  libqt5gui5            5.6.1+dfsg-3+b1
ii  libqt5widgets5        5.6.1+dfsg-3+b1
ii  libstdc++6            6.2.0-9

konsole recommends no packages.

konsole suggests no packages.

-- no debconf information