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Graphical display stays black after resume from suspend to RAM (S3)

This document (7010116) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Point of Service
SUSE Linux Enterprise Desktop 11 Service Pack 1
SUSE Linux Enterprise Server 11 Service Pack 1

Situation

Under some cirtumstances the graphical display of the affected machine stays black after resume from suspend 
to RAM (S3) if a wireless network card Atheros AR5008 has been installed into the system.
There is some conflict in the PCI settings that cannot been resolved by the BIOS when waking up.

Resolution

Unload the ath5k module before suspend and reload it after the resume.
Additionally force PCI space and graphical mode saving when calling s2ram. To achieve this do the following: 1. Add the line S2RAM_OPTS="-f -p -m" to the file /etc/pm/config.d/suspend 2. Generate the file /etc/pm/sleep.d/99ath9k through:
/etc/pm/sleep.d/99ath9k
-->--
#!/bin/bash case "$1" in hibernate|suspend) modprobe -r ath9k ;; thaw|resume) modprobe ath9k ;; *) ;; esac exit 0 --<--
and then do a chmod +x /etc/pm/sleep.d/99ath9k

Additional Information

Machine(s) affected:
IBM 4838-510 with Atheros AR5008 wireless network card

Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/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:7010116
  • Creation Date:06-FEB-12
  • Modified Date:27-APR-12
    • SUSESUSE Linux Enterprise Desktop
      SUSE Linux Enterprise Point of Service
      SUSE Linux Enterprise Server

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