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[Carl Pelz <pelzc@xxxxxxxx>]

I have the same problem on Ubuntu 14.04.  It happens with "screenshot",
"PrntScr" key, or "gnome-screenshot" from terminal.  Screen shot used to
work for me.

To recover from the "WHITE SCREEN": switch to terminal (Ctrl + Alt + F1)
and kill the "gnome-screenshot" process, then switch back to desktop
(Ctrl + Alt + F7).

I believe the problem is due to permissions on the file ~/.local/share
/recently-used.xbel in the user's home folder.  In my case, this file
was owned by root.  I assume this happened due to doing a printscreen as
sudoer, but I'm not how exactly this happened in my case.

Once I changed the owner and group back to my user, all the above
methods of screenshot work again without causing a white screen.  (sudo
chown user:user ~/.local/share/recently-used.xbel)

Hope this helps!

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-screenshot in Ubuntu.
https://bugs.launchpad.net/bugs/1194509

Title:
  Screenshot area is greyed out

Status in gnome-screenshot package in Ubuntu:
  Confirmed

Bug description:
  Hi. I've got a funny issue here that I cannot quite describe.
  Sometimes, when I want to take a screenshot (using the built in
  screenshot tool or an external screenshot tool like Screen Cloud) the
  screen just blanks out.

  gnome-screenshot produces a fully grey image (will attach). I expect
  it to take a full screen image of my desktop.

  Using the "select area and screenshot" tool of Screen Cloud used to
  grey out the entire screen and only show the shadow of the
  notification bar, but I've since reinstalled Ubuntu and now it greys
  out everything apart from the notification bar and the dock at the
  side. I will attach a photo of this, since I obviously cannot take a
  screenshot of this behaviour. Interestingly, the first time it
  happened on this new installation of Ubuntu, it blanked out most of
  what I described above apart from about half an inch from the bottom
  of the screen, just enough to show a part of the Chrome downloads bar.

  This happens seemingly at random, and then stays like this until I
  reboot. As I said, this happened across two installations (12.04
  upgraded to 12.10 and later to 13.04 and a fresh 13.04 installation),
  so this is likely a problem with my hardware. I will attach
  appropriate information momentarily.

  gnome-screenshot:
    Installed: 3.6.1-0ubuntu2
    Candidate: 3.6.1-0ubuntu2
    Version table:
   *** 3.6.1-0ubuntu2 0
          500 http://gb.archive.ubuntu.com/ubuntu/ raring/main amd64 Packages
          100 /var/lib/dpkg/status

  Also, in an attempt to fix this I've asked about on Ubuntu Forums about this error. ibjsb4 suggested reinstalling gnome-screenshot or using Shutter, but neither of these suggestions helped. He also suggested running gnome-screenshot from terminal, but that just takes a grey screenshot as normal and doesn't output anything in the terminal.
  --- 
  ApportVersion: 2.9.2-0ubuntu8.1
  Architecture: amd64
  DistroRelease: Ubuntu 13.04
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2013-06-09 (15 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MarkForUpload: True
  Package: gnome-screenshot 3.6.1-0ubuntu2
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 3.8.0-25.37-generic 3.8.13
  Tags:  raring
  Uname: Linux 3.8.0-25-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers

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