Works better with the boot param "acpi_osi=Linux"
Without it, the PS/2 keyboard and USB mouse does not work at all.

Here is the rest of the info:

[    0.456522] ACPI: DMI System Vendor: Gateway
[    0.456523] ACPI: DMI Product Name: DX4720-03
[    0.456524] ACPI: DMI Product Version: To Be Filled By O.E.M.
[    0.456525] ACPI: DMI Board Name: MS-7399
[    0.456526] ACPI: DMI BIOS Vendor: American Megatrends Inc.
[    0.456528] ACPI: DMI BIOS Date: 08/06/2008
[    0.456529] ACPI: Please send DMI info above to
linux-acpi@vger.kernel.org

..............

[    0.506485] ACPI Error (uteval-0289): Return object type is incorrect
[\_SB_.LATA._CRS] (Node ffff88013fa39160), AE_TYPE
[    0.506492] ACPI Error (uteval-0295): Type returned from _CRS was
incorrect: Integer, expected Btypes: 4 [20080609]
[    0.506496] ACPI Exception (pci_link-0291): AE_TYPE, Evaluating _CRS
[20080609]
[    0.506498] ACPI: PCI Interrupt Link [LATA] (IRQs 20 21 22 23) *0,
disabled.
[    0.506550] ACPI Warning (tbutils-0217): Incorrect checksum in table
[OEMB] - 1E, should be 1D [20080609]


Attached is all the dmesg.


All the best and thank you for your effort,
M.T.M.