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I am using xfce4-power-manager to take care of screen locking and suspend when I close the lid of my laptop. It's a great little utility!

However, when the machine wakes from suspend (which is to RAM), it is very sluggish. e.g. typing in a terminal window will incur as much as a few seconds delay.

This effectively makes suspend to RAM useless on my machine :-(

I have the same problem if I manually use pm-suspend or pm-hibernate (the latter also requiring to go through grub when it wakes up).

Is there something I'm missing?

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Try to see if there is some program running that is confused by the suspend-resume. Issue top in a terminal and see if there is some program using all the CPU and/or RAM. –  Rmano Mar 24 at 22:18

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