> Sleep and hibernate have nothing to do with drivers. That sounds like a brave statement to me. Without knowing many details I believe that drivers can block

> Sleep and hibernate have nothing to do with drivers. That sounds like a brave statement to me. Without knowing many details I believe that drivers can block the system from hibernating when they don't cooperate correctly. I am absolutely sure during wakeup the driver needs to cooperate correctly. There are numerous cases that some device does no longer work correctly after wakeup. I doubt that ACPI alone can be blamed for all of the issues, even if I don't like the close source nature of ACPI. Is there any open source approach to ACPI? Not that I'd expect to work better right away. But you know whom to blame. In the worst case yourself for not starting to fix it.