Christian, Did you try any of these boot parameters: acpi_sleep=s3_bios or acpi_sleep=s3_mode or acpi_sleep=s3_bios,s3_mode
-- screen is black after return from suspend https://launchpad.net/bugs/18113 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
