ubuntu-x-swat team mailing list archive

[Simon Lewis <simon@xxxxxxxx>]

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.