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

Launchpad Bug Tracker 379382 at bugs.launchpad.net
Sun Sep 18 19:16:59 UTC 2011


You have been subscribed to a public bug by Rolf Leggewie (r0lf):

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.

** Affects: gnome-utils
     Importance: Medium
         Status: Fix Released

** Affects: gnome-utils (Ubuntu)
     Importance: Low
     Assignee: Rolf Leggewie (r0lf)
         Status: In Progress


** Tags: jaunty karmic lucid maverick patch regression
-- 
gnome-screenshot (Alt-Printscreen) black/blanks out top of windows in multi monitor xinerama
https://bugs.launchpad.net/bugs/379382
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