[Bug 379382] Re: gnome-screenshot (Alt-Printscreen) black/blanks out top of windows in multi monitor xinerama

[Rolf Leggewie]

** Patch added: "slightly updated debdiff for lucid SRU"
   https://bugs.launchpad.net/ubuntu/+source/gnome-utils/+bug/379382/+attachment/2460391/+files/lp379382-lucid.debdiff

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Title:
  gnome-screenshot (Alt-Printscreen) black/blanks out top of windows in
  multi monitor xinerama

Status in gnome-utils - GNOME Desktop Utilities:
  Fix Released
Status in “gnome-utils” package in Ubuntu:
  In Progress

Bug description:
  I have Ubuntu 9.04 configured in a multi-monitor Xinerama setup of a
  centre monitor 1600x1200 and two smaller monitors 1280x1024 on either
  side i.e. different resolutions across the screens.

  In Ubuntu 9.04 gnome-screenshot now black/blanks-out the top 210
  pixels of any screenshot I take of an individual window (i.e. Alt-
  Printscreen) regardless of which monitor I take it on. The number of
  pixels blanked out seems dependent on the difference in the y-offset
  across the screens as configured in xorg.conf. Taking a screenshot of
  the whole desktop works properly. The problem did not occur at all in
  Ubuntu 8.10.

  Here's the relevant extract from my xorg.conf:
  Section "ServerLayout"
  	Identifier     "Layout0"
  	Screen      0  "ScreenCentre" 1280 0
  	Screen      1  "ScreenLeft" 0 210
  	Screen      2  "ScreenRight" 2880 210
  	Option         "Xinerama" "On"
  EndSection

  Note that the left and right monitors are slightly lower on my desk
  than the centre monitor so I've set their y-offsets in xorg.conf to
  210 pixels (from what otherwise should be 1200-1024=176 pixels) so
  that when I drag windows between monitors the widows appear at the
  same level.

  I'll attach a screenshot of the whole desktop to illustrate the xorg
  offsets, and screenshots of individual windows which illustrate the
  problem.

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