The summary explains it all. In my 7720G laptop, the first time I close and open the cover it resumes perfectly. But from the second and subsequent times when I press some key or the shutdown button in order to resume, the system remains in black screen and it doesn't resume. Have you seen similar situations? Thanks -- 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