linux-kernel - [Bug 11603] Re: ACPI PnP on Intel MU440EX

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Message-Id: <200809201659.19268.bjorn.helgaas@hp.com>
Date:	Sat, 20 Sep 2008 16:59:18 -0600
From:	Bjorn Helgaas <bjorn.helgaas@...com>
To:	Martin Doucha <next_ghost@...ck.cz>
Cc:	Linux Kernel list <linux-kernel@...r.kernel.org>,
	matthieu castet <castet.matthieu@...e.fr>,
	bugme-daemon@...zilla.kernel.org
Subject: [Bug 11603] Re: ACPI PnP on Intel MU440EX

http://bugzilla.kernel.org/show_bug.cgi?id=11603

Thanks for opening this bug report, Martin.

The DSDT definitely includes the parallel device.  The device can be
in several modes, so there are actually three sections for it: LPT,
EPP, and ECP.  None of them showed up in the PNP debug output, so the
_STA methods must be telling us the device isn't present at all.

If you turn on CONFIG_ACPI_DEBUG and boot with these options:
  acpi.debug_layer=0x10000 acpi.debug_level=0x10

we should see the results of evaluating _STA.

Does the BIOS setup screen have any config items related to the
parallel port?  If so, can you experiment with them and find out
whether they make any difference?
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