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I'm running Kubuntu on my Averatec 3715-EH1 notebook, and am having a problem resuming after suspend-to-ram. Suspend-to-HDD works fine. It appears that I can suspend fine, but when I try to resume, I get a blank screen, and the HDD light stays lit constantly, though I can't hear any activity. Keystrokes get no response. This happens whether I try to resume by touching the keyboard, pressing the power button, or opening the lid. I am forced to reboot. I don't know my graphics card offhand, but will look for the information. The processor is an AMD Sempron 3000+.
ACPI4Linux is a very credible source IMO, but the worst it says about suspend-to-RAM is this:
Because it requires a high degree of coordination between the cpu, chipset, devices, OS, BIOS, and OS device drivers, this system state is the most prone to errors and instability.
Pavel Machek has created a small document with some hints how to solve problems with S3.
That sounds to me like it either works or tends to crash on any given system. Nothing about ruining your hardware right?