Hi there, with some help from Ole Rohne I started investigating S3 suspend/resume on my sony vaio z600tek. I found that when I either jmp over acpi_enter_sleep_state in wakeup.s or comment out writing the sleep_enable_bit and the waiting-for-wakeup-loop in acpi_enter_sleep_state the suspend/resume cycle works fine. Without doing one of the above it suspends but on resume the power/charge/ilink leds go on and remain on - tough they are supposed to only blink once (what I know from resuming under win2000). Nothing else happens: no harddisk, no video, no fan, it is just completely dead - regardless of what I try to do. So I conclude that either there is something wrong with _WAK and _BFS or it locks up in wakeup.S - just before the hardware part in control of the leds gets resumed (resetted). Now, I would really appreciate any hint, how I can gather more information. Is there any chance to find out wether it actually jumps into wakeup.S after resume? DSDT is attached. Thanks in advance. -Knut -- -- "Marriage is the alliance of two people,one of whom never remembers birthdays and the other never forgets them." - Ogden Nash