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IDProjectCategoryView StatusLast Update
0007793CentOS-7gnome-sessionpublic2014-10-28 09:28
Reportercolinmcfarlane Assigned To 
PrioritynormalSeveritymajorReproducibilityalways
Status newResolutionopen 
Product Version7.0-1406 
Summary0007793: Unable to run KDE over XDMCP due to gnome 3D errors
DescriptionCentos 7 on the server with XDMCP enabled. Workstation running Centos 7 and attempting to start "Xnest :1 -query server" produces a black window and the server reports:

<code>Oct 28 08:57:42 nx /usr/bin/dbus-launch: gnome-session-is-accelerated: No composite extension.
Oct 28 08:57:42 nx /usr/bin/dbus-launch: gnome-session-check-accelerated: Helper exited with code 256
Oct 28 08:57:42 nx /usr/bin/dbus-launch: ** (process:32693): WARNING **: software acceleration check failed: Child process exited with code 1</code>

The same failure occurs with the workstation booting into X as an xdmcp client. All our workstations are now failing due to this.

I could not find a way to get kdm to run without gnome on the server. I appreciate that the underlying bug is in the upstream gnome software but the fact that kde on centos 7 has a dependency on it is something centos may be able to resolve.
Steps To ReproduceInstall Centos 7 - choose "KDE Plasma Workspaces" as the software group to install, configure XDMCP. On the client either boot into xdmcp or use Xnest.
Additional InformationThis also happens with OpenSUSE 13.1 as the workstation OS.

Other distros have the same problem.
https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1251281

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Issue History

Date Modified Username Field Change
2014-10-28 09:28 colinmcfarlane New Issue