On Wed, Feb 18, 2009 at 10:41:31AM +0800, sheldon wrote: > I'm trying to find how Xorg handles ACPI (s3 and s4). It seems that Xorg > handles S3/S4( suspend and resume) is just the same as it process VT > switching, for both the flow is WaitFofSomething( )-> WakeUpHandle( ) -> > xf86Wakeup( ) -> xf86VTswitch( ) .
Xorg doesn't handle S3/S4. > Question 1. Is any different between Xorg handle S3/S4 and VT Switching? No - suspend/resume will typically be implemented by VT switching (see pm-utils or the kernel's own VT switching in kernel/power/main.c) > BUT, xf86HandlePMEvents( ) is never called (I'm using Ubuntu8.10, Xorg > 1.5.2 *C- a debug version ,compiled by myself). In my system S3/S4 is OK > in both console and X. > > Question 2. I don't know why, Is Xorg don't need to read ACPI Events ? or > using some other methods There are no ACPI events that Xorg can usefully respond to directly. They're all passed to userspace which will take appropriate actions. -- Matthew Garrett | [email protected] _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
