[Bug 99103] Same output (DisplayPort) is used in multi-head configuration for different Devices/Displays

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99103

--- Comment #11 from Stefan.LAUTERWASSER at thalesgroup.com ---
Created attachment 132136
  --> https://bugs.freedesktop.org/attachment.cgi?id=132136&action=edit
Xorg.0.log of nearly working xinerama configuration with 8 monitors (slow
performance)

working multi-head configuration with 8 monitors
working xinerama configuration with 8 monitors (slow performance)

The reason for manual enabling the monitors looks - after fixing identifiers -
in the Xorg.0.log file like:

[ 17828.932] (EE) RADEON(G0): Cannot position output DisplayPort-1-4 relative
to unknown output DisplayPort-3
[ 17828.932] (EE) RADEON(G0): Cannot position output DisplayPort-1-5 relative
to output DisplayPort-1-4 without modes
[ 17828.932] (EE) RADEON(G0): Cannot position output DisplayPort-1-6 relative
to output DisplayPort-1-5 without modes
[ 17828.932] (EE) RADEON(G0): Cannot position output DisplayPort-1-7 relative
to output DisplayPort-1-6 without modes


But I don't know how to fix these issue. Please help.

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