Hello ACPI experts, I made a breakthrough in my s2r debugging last night when I realized that the sooner I pressed the power button after suspend, the more life the system exhibited post-resume. In fact when I attempted to resume immediately after entering suspend, my system had a successful resume from memory for the first time ever. Therefore, I have a new hypothesis: DRAM self-refresh mode is not being properly entered. I'm running kernel 2.6.20 on a laptop with an ATI IGP 320M Northbridge and an Athlon XP. DSDT has a _PTS but no _GTS. I'm comfortable recompiling the kernel. Any suggestions as to how to proceed, experiments to run, etc.? Thanks for any help you can give, Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html