Bug 10382

Summary:	Impossible to capture screen image when running two X servers
Product:	xorg	Reporter:	Artem Ananiev <artem.ananiev>
Component:	Server/General	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED NOTABUG	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium	CC:	oleg.sukhodolsky
Version:	6.8.1
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Artem Ananiev 2007-03-23 00:12:45 UTC

I'm running two X servers on my desktop, say :0 and :1, they can be switched with ctrl+alt+f7 and ctrl+alt+f8. When I'm on the :0 and run

xwd -display :0 -root -out 1.xwd

it works correctly. However, if I try to capture an image from :1, I only get a garbage. The same is true if I'm running on :1 and trying to capture :0. The same test works correctly if the second server is Xnest of Xvfb.

Comment 1 Adam Jackson 2008-02-24 19:08:54 UTC

This is expected.  When the X server switches away from the VT, it loses the framebuffer; there's no storage for the screen, at all.

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