Using “blacklist=vga16fb” made no difference. The reason ACPI fails on this machine is that the 'extended checksum' field (and the 'length' field for that matter) in the RSDP table is wrong, so it is not being recognised as a valid table. (Incidentally, ACPI works correctly under Windows XP, so I assume XP only validates the original 'checksum' field to determine whether the table is valid. Linux validates the 'extended checksum' field as well if the table is ACPI v. 2+ format.)
I have been able to extract the ACPI tables from the BIOS (by amending acpidump from pmtools to ignore the invalid checksum) and the output is attached. ** Attachment added: "acpitables.txt" http://launchpadlibrarian.net/43524800/acpitables.txt -- [i845g] Login screen doesn't appear https://bugs.launchpad.net/bugs/552481 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
