screengrab does not take screenshots from second monitor get black image only

[Lyn Perrine]

To reproduce on a mutlimonitor setup on monitor try to take a picture of a window on the second monitor in my case an hdmi monitor. To do this place a monitor off the primary monitor and then press new for the screenshot.

Description: Ubuntu Focal Fossa (development branch)
Release: 20.04

screengrab:
  Installed: 2.0.0-1
  Candidate: 2.0.0-1
  Version table:
 *** 2.0.0-1 500
        500 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        100 /var/lib/dpkg/status

Monitor settings

HDMI-A-0:
 Mode: 1920x1080
 Rate: 60 Hz
 Rotation: None
 Position: 1920x0
 Primary: False
 Enabled: True
DVI-D-0:
 Mode: 1920x1080
 Rate: 60 Hz
 Rotation: None
 Position: 0x0
 Primary: True
 Enabled: True

I expected qpdfview to have same imagge of window no matter which monitor it is on.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: screengrab 2.0.0-1
ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
Uname: Linux 5.4.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu20
Architecture: amd64
CurrentDesktop: LXQt
Date: Thu Mar 19 13:02:37 2020
InstallationDate: Installed on 2020-02-05 (43 days ago)
InstallationMedia: Lubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20191226)
SourcePackage: screengrab
UpgradeStatus: No upgrade log present (probably fresh install)

[Chris Guiver (guiverc)]

It's behaving strange for me too

guiverc@d960-ubu2:/de2900/lubuntu_64$ apt-cache policy screengrab
screengrab:
  Installed: 2.0.0-1

It appears to want to take a photo of the middle of my second monitor (not the window), however I got the following when trying to take a photo of my 'hexchat' window on my primary display (see attached)

Taking a picture of FULL SCREEN (both displays) looked correct.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.