When first started, GIMP's Layer Dock was almost completely off screen to the right

[Scott Cowles Jacobs]

The following bug was reported at:

https://bugzilla.gnome.org/show_bug.cgi?id=781803

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I just installed the latest Lubuntu (17.04) and installed the latest standard GIMP in my repositories (2.8.20-1).
The Layers/Channels/Paths/Undo/Brushes/Patterns/Gradients combined dock (
Whew! - is there a shorter name for this initially standard opening combo dock?)
was so far to the right on my screen that I had to snag it with Alt-Drag (see screenshot).
I am using the proprietary NVidia 304 package (which I have been automatically installing since (so far) Nouveau always manages to crash something I try to use; I have not actually tried it yet with the new Lubuntu, I suppose I ought to try one day...), and my monitor is set to a resolution of 1792x1344 (where DO they get these wierd coordinates?)
Since GIMP remembers window placement between sessions, and I moved the window/dock so that it was entirely visible, this is obviously no longer a problem,
but it would look bad for a new user of GIMP, and not everyone knows about Alt-Drag to lasso straying windows...

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scott@scott-ASUS-M2N68-AMPLUS:~$ uname -a
Linux scott-ASUS-M2N68-AMPLUS 4.10.0-19-generic #21-Ubuntu SMP Thu Apr 6 17:04:57 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
scott@scott-ASUS-M2N68-AMPLUS:~$ lsb_release -dsc
Ubuntu 17.04
zesty
scott@scott-ASUS-M2N68-AMPLUS:~$ echo $DESKTOP_SESSION
Lubuntu
scott@scott-ASUS-M2N68-AMPLUS:~$ gimp --version
GNU Image Manipulation Program version 2.8.20
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If there is any other info that would help, let me know...
-Scott
===========================================================================================

" Michael Schumacher [GIMP developer] "
was curious if this was a Lubuntu- or Ubuntu-only bug, as he had not encountered it.

I was going to report it at https://bugs.launchpad.net/lubuntu/+filebug
but the only "Project:"s that one can select are "Lubuntu Artwork", "... Software Center",
"... next", "... Tweaks", "LxFind", and "LxScreenshot", in none of whose categories GIMP belongs, so I am "ubuntu-bug"ing it here...

If any Ubuntu or Lubuntu users have either experienced this, or want to install it and see if
it happens for them, Michael and I (and probably others) would be interested in knowing about it.

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: gimp 2.8.20-1
ProcVersionSignature: Ubuntu 4.10.0-20.22-generic 4.10.8
Uname: Linux 4.10.0-20-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
CurrentDesktop: LXDE
Date: Mon May 1 19:26:19 2017
InstallationDate: Installed on 2017-04-22 (9 days ago)
InstallationMedia: Lubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: gimp
UpgradeStatus: No upgrade log present (probably fresh install)