Guake doesn't handle properly resolution changes in multi screen setup

[Bartłomiej Żogała]

Step's to reproduce:
1. Launch Guake on laptop with external screen connected, in ma particular case QHD internal screen resolution + FHD external scren.
2. Open Guake on external screen - full width used - OK
3. Open guake on internal screen - full width used - OK
4. Change resolution on internal from Native 3200x1800(16:9) to anything smaller 2047x1152(16:9)
5. Open guake on built-in screen
6. Part of guake window appears on external screen(1/8 width near the edge) while no part appears on built-in screen.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: guake 3.0.5-1
ProcVersionSignature: Ubuntu 4.15.0-117.118-generic 4.15.18
Uname: Linux 4.15.0-117-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.9-0ubuntu7.17
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Sep 19 20:14:36 2020
InstallationDate: Installed on 2015-05-08 (1961 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
SourcePackage: guake
UpgradeStatus: Upgraded to bionic on 2018-08-26 (754 days ago)