ACPI vs fdc0

Pav Lucistnik pav at
Sun Jul 6 15:41:31 PDT 2003


my floppy disc drive does not work. I was ignoring this fact until today,
because I need to write something to a floppy. It's probably clashing with
something ACPI is claiming:

[during boot]
fdc0: cmd 3 failed at out byte 1 of 3
fdc0: cmd 3 failed at out byte 1 of 3
fdc0: cannot reserve I/O port range (6 ports)

[devinfo -u]
    0x3f0-0x3f1 (acpi_sysresource0)
    0x3f2-0x3f5 ----
    0x3f6 (ata0)
    0x3f7 (root0)

How can I get tell ACPI to free those two I/O ports? It works fine when I
disable ACPI, but disabling ACPI is not an option, because X does not 
start without it. I need floppy under X.

I searched mailing list archives and exactly this same problem was
discussed back in summer 2001. I can't believe no solutions have been made
since then.

[uname -a]
FreeBSD 5.1-CURRENT FreeBSD 5.1-CURRENT #0: 
Fri Jul  4 21:23:06 CEST 2003    
root at

I'll provide any other debug information needed.

Pav Lucistnik <pav at>
What do we know about love? Love is like a pear. Pear is sweet and have
a specific shape. Try to exactly define the shape of a pear.
  -- Marigold: 50 Years Of Poetry

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