My Thinkpad X40 matches an UNSURE entry, as of current Debian unstable
(0.6~cvs20070618-1):

    Machine matched entry 321:
        sys_vendor   = 'IBM'
        sys_product  = '2386*'
        sys_version  = ''
        bios_version = ''
    Fixes: 0x2c  VBE_SAVE VBE_POST UNSURE 
    This machine can be identified by:
        sys_vendor   = "IBM"
        sys_product  = "23861CU"
        sys_version  = "ThinkPad X40"
        bios_version = "1UET73WW (1.21 )"
    See http://en.opensuse.org/S2ram for details.

These settings did not work for me.  The machine comes back on, and the
display lights up, but the screen is not fully drawn (windor borders
appear, for example, but no text within them).  This problem does not
even go away by restarting X.

Instead, I copied the entries from "2371*" (/* X40 confirmed by
Christian Deckelmann */), and they have been working fine:

        { "IBM",                        "2386*",                "",     "", 
S3_BIOS|S3_MODE },

Also, for reference, no hacks like this were necessary until I upgraded
to the new driver for my intel display chip, from Debian package
xserver-xorg-video-i810 2:1.7.2-4 to xserver-xorg-video-intel 2:2.1.0-2.
With the old driver, the screen always restored flawlessly.  (I wasn't
using uswsusp at the time, just the hibernate package, without any vbe
or acpi options set.)

Andrew

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