I only just noticed a huge regression that was introduced when we moved PowerPC to the generic APM emulation code instead of our own. I'm in large part to blame since I acked the patch...
Basically, what we lost is the mechanism for notifying user applications and waiting for their ACK before proceeding to system suspend. The new generic code will still do that ... only when the actual suspend request initiates from an APM suspend ioctl. For any other suspend (via our private PMU ioctl or via the sysfs interface), userspace will -not- be notified. That basically means X will break. That's why X broke on the latest ubuntu until I whacked some new scripts in them to force console switching, among other things. Possibly other apps that relied on /dev/apm_bios to be notified of system suspend/resume broke as well. Now the question is that is it still work trying to fix it ? That would probably require APM emulation hooking at a fairly high level into the generic PM code to trigger the signaling & waiting of processes before freeze & device suspend among others... Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
