** Changed in: linux-source-2.6.15 (Ubuntu)
Assignee: Registry Administrators (registry) = (unassigned)
** Changed in: linux-source-2.6.22 (Ubuntu)
Assignee: Registry Administrators (registry) = (unassigned)
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** Changed in: linux
Importance: Unknown = Medium
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https://bugs.launchpad.net/bugs/58386
Title:
ACPI: Looking for DSDT ... not found! (message during boot)
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Setting this to Fix Released for Intrepid as I believe the message has
been reworded to ACPI: Checking initramfs for custom DSDT . Thanks.
** Changed in: linux (Ubuntu)
Status: Fix Committed = Fix Released
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ACPI: Looking for DSDT ... not found! (message during boot)
** Changed in: linux (Ubuntu)
Assignee: Ubuntu Kernel ACPI Team (ubuntu-kernel-acpi) = Colin King
(colin-king)
Status: Triaged = In Progress
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ACPI: Looking for DSDT ... not found! (message during boot)
https://bugs.launchpad.net/bugs/58386
You received this bug notification
** Changed in: linux (Ubuntu)
Status: In Progress = Fix Committed
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ACPI: Looking for DSDT ... not found! (message during boot)
https://bugs.launchpad.net/bugs/58386
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I have a Dell Optiplex GX270. When I grep the dmesg I get the error that
this bug report shows.
I then did this:
~ sudo cp /proc/acpi/dsdt .
~ sudo iasl -d dsdt
~ sudo iasl -sa dsdt.ds
After it compiles I get this Warning:
dsdt.dsl 1052: Method (_S5D, 0, NotSerialized)
Warning
On Wed, Jun 04, 2008 at 12:15:24AM -, Mark Falcey wrote:
Well, the message says error so what should people expect.
It may not have been sufficiently clear from my comment, but I was
suggesting changing it (including removing the word error) for that
reason.
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- mdz
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ACPI: Looking
Well, the message says error so what should people expect.
I found this while perusing the logs after upgrading to 2.6.24-18.32
generic about an hour ago:
ACPI: Looking for DSDT in initramfs... error, file /DSDT.aml not found.
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ACPI: Looking for DSDT ... not found! (message during boot)
Still there in Hardy
** Also affects: linux-source-2.6.24 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Sourcepackagename: linux-source-2.6.24 = linux
Assignee: (unassigned) = Ubuntu Kernel ACPI Team (ubuntu-kernel-acpi)
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ACPI: Looking for DSDT ...
The problem here is that the message is not clear enough. It looks like
an error message, but it is not. In fact, nearly every Ubuntu system
logs this message on every boot.
It simply means that there is no DSDT override included in the
initramfs, and it should say that instead. This should be
This bug does not qualify as a stable release update candidate for Gutsy
and is being closed. Thanks.
** Changed in: linux-source-2.6.22 (Ubuntu)
Status: Confirmed = Won't Fix
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ACPI: Looking for DSDT ... not found! (message during boot)
https://bugs.launchpad.net/bugs/58386
You
The purpose of this optional kernel feature, enabled by
CONFIG_ACPI_CUSTOM_DSDT_INITRD=y in the kernel .config at build-time,
is to allow the user to replace the BIOS Advanced Configuration Power
Interface (ACPI) Differentiated System Description Table (DSDT) with one
that has been modified to
Update to reflect status for 2.6.22
** Changed in: linux-source-2.6.22 (Ubuntu)
Importance: Undecided = Wishlist
Assignee: (unassigned) = Ubuntu Kernel ACPI Team
Status: New = Confirmed
** Changed in: linux-source-2.6.15 (Ubuntu)
Importance: Undecided = Wishlist
Assignee:
** Changed in: linux-source-2.6.15 (Ubuntu)
Assignee: Jérémie Corbier = (unassigned)
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ACPI: Looking for DSDT ... not found! (message during boot)
https://bugs.launchpad.net/bugs/58386
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Bugs, which is the bug contact for
Re-opening (I think). Even if this is not a real error (ie, if not
having a DSDT is a normal situation), this is still a user-interface
bug: it should not be reported as a boot-time error. The message should
be changed to something more descriptive, like file /DSDT.aml not
found, using defaults or
** Changed in: linux (upstream)
Status: Unknown = Rejected
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ACPI: Looking for DSDT ... not found! (message during boot)
https://launchpad.net/bugs/58386
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This is not a definite fix, but rather a workaround. Try disabling ACPI
altogether. There's a nice forum thread on the topic:
http://ubuntuforums.org/showthread.php?t=2620
Another thing to try is to dig around in your motherboard's BIOS, since
most motherboards nowadays have Linux listed as one
My bios only has a switch for the OS type: OS2/Non-OS2 -- I set it to
Non-OS2.
I'll give the disabling ACPI thing a shot, though actually I DO want to use
it. The kernel bug team confirmed that the problem is ubuntu's initrd since
the message can't be found in any kernel source. Other than the
Dear Jeremie,
Since you were listed as the uploader of initrd-tools, I'm hoping you can help.
I'd like to figure out two things:
1. Was the package initrd-tools imported directly from Debian?
2. As indicated in the Linux kernel bug report (
http://bugzilla.kernel.org/show_bug.cgi?id=7089#c6 ),
The message is a harmless indication that no DSDT was found in the
initramfs.
** Changed in: initrd-tools (Ubuntu)
Sourcepackagename: initrd-tools = linux-source-2.6.15
Status: Confirmed = Rejected
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ACPI: Looking for DSDT ... not found! (message during boot)
System: IBM T22, Ubuntu Edgy, 256MB RAM
Using Edgy, when I boot my system I get far more frequent fsck checks
than I ever used to on Dapperit seems to do it nearly every boot,
not every 30 or so mounts as it used to.
Anyway, after the fsck check I get an error stating:
ACPI: Fatal Opcode
I like to add that this message still appears in the 2.6.17-10-generic
(amd64 or x86_64) kernel in Edgy Beta. Yet, earlier in the boot messages
it appears that ACPI: DSDT ... is indeed found and used. The file
/proc/acpi/dsdt is indeed present, and not empty.
As a matter of interest, I also use
** Changed in: Ubuntu
Sourcepackagename: None = initrd-tools
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ACPI: Looking for DSDT ... not found! (message during boot)
https://launchpad.net/bugs/58386
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