Most recent kernel where this bug did *NOT* occur: Distribution: Fedora Core 6 Hardware Environment: MacBook Core Duo Problem Description: On a resume from suspend-to-mem, machine does not wake up correctly. When I wake it up, the screen stays off (both the backlight and the actual display). I'm not sure what state it is in as the network doesn't come back. Nothing I can do will get it to wake up. Let me know what logs you need. Steps to reproduce: echo "mem" > /sys/power/state Wake up machine.
Created attachment 10970 [details] Output of acpidump
what is the latest kernel revision that worked properly, or has this always failed?
This has always failed.
2.6.21-rc6 fixes this issue.