ACPI errors on boot

Dan Ponte dcp1990 at
Tue Mar 15 12:58:46 PST 2005

On Mon, Mar 14, 2005 at 10:00:49PM -0800, Doug White <dwhite at> was witnessed plotting the following conspiracy:
> On Sat, 12 Mar 2005, Dan Ponte wrote:
> > I've been seeing lots of ACPI errors in my dmesg lately. They haven't
> > really affected functionality (yet!), but I'd like to see them resolved
> > nonetheless. I've googled all around, could not find a hint of a
> > solution. This machine is an ASUS CUSL2 motherboard with BIOS revision
> > 1009. Below is my dmesg.
> ASUS motherboards are known to have broken ACPI code so this isn't too
> suprising.
> >     ACPI-0252: *** Error: No object was returned from [\\_SB_.PCI0.PX40.UAR2._STA] (Node 0xc15b8dc0), AE_NOT_EXIST
> This appears to be trying to get resource information for uart #2 (sio1).
> Since that port probes OK anyway its likely harmless.
> If you want to try to clear these up, try a BIOS update first (if
> available), then look for a replacement DSDT table. You can use the loader
> options described in acpi(4) to load the fixed table.
Hrm. I'll try the DSDT table, as the only update for this board is
marked as unstable and still in beta.
Dan Ponte
The problem with people who have no vices is that generally you can be
pretty sure they're going to have some pretty annoying virtues.
		-- Elizabeth Taylor
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url :

More information about the freebsd-stable mailing list