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From: "Pawel Worach" <pawel.worach@telia.com>
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cc: current@FreeBSD.org
Subject: Re: ACPI vs. /dev/fd0
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I have the same problem. This is a on a regular PC (not laptop).

acpi0: <ABIT   AWRDACPI> on motherboard
pcibios: BIOS version 2.10
Using $PIR table, 8 entries at 0xc00fd7e0
acpi_bus_number: root bus has no _BBN, assuming 0
    ACPI-0438: *** Error: Looking up [\\_PR_.CPU0] in namespace,
AE_NOT_FOUND
    ACPI-1284: *** Error: , AE_NOT_FOUND
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-safe"  frequency 3579545 Hz
    ACPI-1284: *** Error: Method execution failed
[\\_SB_.PCI0.ISA_.FDC0._CRS] (Node 0xc232d800), =
AE_AML_UNINITIALIZED_LOCAL
    ACPI-0175: *** Error: Method execution failed
[\\_SB_.PCI0.ISA_.FDC0._CRS] (Node 0xc232d800), =
AE_AML_UNINITIALIZED_LOCAL
can't fetch resources for \\_SB_.PCI0.ISA_.FDC0 - =
AE_AML_UNINITIALIZED_LOCAL
...
fdc0: cannot reserve I/O port range (1 ports)
fdc0: cannot reserve I/O port range (6 ports)

Regards
Pawel

Jeff Walters wrote:
> I cannot load the ACPI module in 5.0-current and get a working floppy
drive
> simultaneously.  With ACPI loaded the dmesg | grep fdc0 is:
>=20
> 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)
>=20
> With the ACPI module disabled in /boot/loader.conf, I get:
>=20
> fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> at port
> 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on isa0
> fdc0: FIFO enabled, 8 bytes threshold
> fd0: <1440-KB 3.5" drive> on fdc0 drive 0

Probably it needs to be explicitly enabled, having been disabled
by default.  Is this an external/drive-swap-bay floppy?

-- Terry