Organizing Xorg-7.2 external dependencies

Alexander E. Patrakov patrakov at
Sun Jun 3 22:13:06 PDT 2007

Dan Nicholson wrote:
> On 6/2/07, Alexander E. Patrakov <patrakov at> wrote:
>> Dan Nicholson wrote:
>>> I can't reproduce the bug here.
>> This is because your X server does not have the XINERAMA extension (the
>> same is true for the LiveCD, BTW). The following comment by Josh
>> Triplett appeared at
>> yesterday:
> Excellent! Thanks for checking that out. Hmm, I still can't trigger it
> even when I try to force on XINERAMA in the ServerFlags section.

Please verify that you really have XINERAMA (run xdpyinfo). I could not make 
the server enable it on Radeon 9200LE with a single LCD monitor attached, 
and thus cannot reproduce the Java bug natively at home (and at work, too - 
Radeon 9250 with a CRT monitor there). Since you have the same video card, I 
am afraid this also applies to you. However, while trying to obtain a 
XINERAMA-capable X server, I have found another testcase, without Java:

Xnest -noreset -ac -geometry 640x480 :1 &>/dev/null &
Xnest -noreset -ac -geometry 512x384 :2 &>/dev/null &
Xdmx -display :1 -display :2 :3
(it prints the failed assertion - I have to test if this is fixed in the 
latest git before reporting upstream, feel free to race with me)

This is reproducible on the latest SVN LiveCD (and on - sorry 
for other bugs, they are inevitable in a remote build).

Yet another way: install VMware Server and reproduce the Java bug in a 
virtual machine (it is reproducible here). The virtual "vmware" driver 
supports XINERAMA if you add the following in xorg.conf:

Section "Device"
	Identifier "Generic video card"
	Driver "vmware"
	Option "Xinerama" "on"
	Option "StaticXinerama" "512x768+0+0;512x480+512+0"

Alexander E. Patrakov

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