В dmesg вижу сообщения:
[ 0.085953] pci 0000:00:1f.0: quirk: [io 0x0480-0x04bf] claimed by ICH6 GPIO
[ 0.085998] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 1 PIO at 0280 (mask 00ff)
...
[ 0.086228] pci 0000:00:1f.1: reg 20: [io 0xffa0-0xffaf]
...
[ 0.086337] pci 0000:00:1f.2: reg 20: [io 0xc800-0xc80f]
[ 0.086376] pci 0000:00:1f.2: PME# supported from D3hot
[ 0.086453] pci 0000:00:1f.2: PME# disabled
[ 0.086596] pci 0000:00:1f.3: reg 20: [io 0x0400-0x041f]
...
[ 0.123598] pnp 00:06: Plug and Play ACPI device, IDs PNP0401 (active)
...
[ 0.123806] pnp 00:07: [io 0x04d0-0x04d1]
[ 0.123810] pnp 00:07: [io 0x0800-0x087f]
[ 0.123815] pnp 00:07: [io 0x0000-0xffffffffffffffff disabled]
[ 0.123820] pnp 00:07: [io 0x0480-0x04bf]
[ 0.123824] pnp 00:07: [io 0x0900-0x090f]
...
[ 0.126586] system 00:07: [io 0x04d0-0x04d1] has been reserved
[ 0.126666] system 00:07: [io 0x0800-0x087f] has been reserved
[ 0.126745] system 00:07: [io 0x0480-0x04bf] has been reserved
[ 0.126824] system 00:07: [io 0x0900-0x090f] has been reserved
...
[ 3.176880] ACPI: resource (null) [io 0x0480-0x04bf] conflicts with ACPI region GPR2 [io 0x480-0x4af]
[ 3.176887] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
Порты с 400 по 41f задействованы в чипсетовском GPIO, а ещё порты с 480 по 4bf и с 4d0 по 4d1 требует себе PNP0401 (это то ли IRDA, то ли параллельный порт).
Хочется понять, в чём дело и как разрешать такие конфликты.
