On Tue, Jul 12, 2011 at 03:20:23PM -0700, Keith Packard wrote: > Seriously? It's some kind of magic non-switch switch event? And you can > tell by checking magic bits within the event? The Intel drivers on Windows appear to have used 0x80 as a generic "Something's chanegd" notification, overloading it for docking, lid state change and display switch press. As a result of that right now we're sending a display switch event whenever one of these occurs. Less than ideal. Opregion gives us a magic field in shared OS/firmware memory that can be used to distinguish between these events. > How can I test this and know if it works? Tested on a Thinkpad X200. Make sure suspend is disabled, then close the lid. Open it again. The ACPI video input device will send a display switch event. Add this patch and repeat and the event will vanish. The display switch itself will still generate an event. I'll send v2 now. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
