[ubuntu] USB Mouse/keyboard Can't wake up Ubuntu9.10 from S3/S4(Suspend/Hibernate)

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http://ubuntuforums.org – On my system, it Can't wake up Ubuntu9.10 from S3/S4 by USB Mouse/keyboard. Only Power-button can wake up system. But with same BIOS setting, system can wake up by USB Mouse/keyboard from S3/S4 in Microsoft Windows OS. Any export know the reason? Ubuntu does not support S3/S4 wake up by USB Mouse/keyboard??? Or Need some seeting? Thanks!:popcorn: (Hardware)