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SLE11: X causes high CPU load after logging into GNOME desktop

This document (7005704) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Desktop 11
SUSE Linux Enterprise Server 11


After logging into a GNOME session the command 'top' shows almost 100% CPU usage for X. This applies to all available users on the system. Other desktop environments as GNOME are not affected (e.g. IceWM).



Update the packages:
  • xorg-x11-server
  • xorg-x11-server-extra
  • xorg-x11-Xvnc
to version 7.4- or higher.


As an alternative to above solution edit /etc/X11/xorg.conf and search for
Section "Extensions"

at the end of the file. Add the option
Option "SYNC""off"

The result should look like:
Section "Extensions"
Option "SYNC""off"

Safe the file and restart X using
rcxdm restart


Additional Information

Please note that Option "SYNC""off" temporarily disables the desktop effects. As soon as the issue is solved the option may be safely removed from /etc/X11/xorg.conf.


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7005704
  • Creation Date: 08-Apr-2010
  • Modified Date:28-Sep-2022
    • SUSE Linux Enterprise Desktop
    • SUSE Linux Enterprise Server

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