https://bugzilla.kernel.org/show_bug.cgi?id=43063
Peter <lekenst...@gmail.com> changed:
What |Removed |Added
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CC| |lekenst...@gmail.com
--- Comment #1 from Peter <lekenst...@gmail.com> 2012-06-02 13:16:34 ---
Please attach the output of the `acpidump` command. Someone else with a similar
problem on an Asus U43Jc:
https://github.com/Bumblebee-Project/Bumblebee/issues/170. A copy from his
error:
ACPI Error: Field [ROMI] Base+Offset+Width 0+24+1 is beyond end of region
[VROM] (length 24) (20120320/exfldio-210)
ACPI Error: Method parse/execution failed [\_SB_.PCI0.RP00.VGA_._ROM] (Node
ffff880131dee050), AE_AML_REGION_LIMIT (20120320/psparse-536)
failed to evaluate ROM got AE_AML_REGION_LIMIT
The \_SB.PCI0.RP00.VGA._ROM method from his DSDT:
Method (_ROM, 2, NotSerialized)
{
Store (\_SB.NVOB, Local0) // read 32-bit field from SystemMemory
Add (Arg0, Local0, Local0)
ShiftLeft (Arg1, 0x03, Local1)
Name (VBUF, Buffer (Arg1) {})
OperationRegion (VROM, SystemMemory, Local0, Local1)
Field (VROM, ByteAcc, NoLock, Preserve)
{
ROMI, 65536
}
Store (ROMI, VBUF)
Return (VBUF)
}
(the DSDT for N73SV seems the same)
Details from the ACPI spec v5 about _ROM (sect. B.3.3 _ROM (Get ROM Data)):
BIOS support.
Arguments: (2)
Arg0 – An Integer containing the offset of the display device ROM data
Arg1 – An Integer containing the size of the buffer to fill in (up to 4K).
Return Value:
A Buffer containing the requested ROM data
There haven't been any big changes in the nouveau_acpi code (last noticable
update was on 17 December 2011, most recent code only initialized a variable,
but it does not affect the ROM detection code), so it's possibly some change in
the ACPI (acpica) subsystem.
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