In RHEL 6.2, when on AC power, the brightness controls are not working after resume from suspend on Lenovo laptop models W510, W520, and W530.

Solution Unverified - Updated -

Issue

  • When on AC power, the brightness controls are not working after resume from suspend on Lenovo laptop models W510, W520, and W530.

Environment

  • Red Hat Enterprise Linux (RHEL) 6.2, 6.3
  • Lenovo laptop; W510, W520, W530

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