[bug #45002] Using "acpi" line won't load DSDT table of ACPI

[Cory Papenfuss]

URL:
  <http://savannah.gnu.org/bugs/?45002>

                 Summary: Using "acpi" line won't load DSDT table of ACPI
                 Project: GNU GRUB
            Submitted by: juneau10
            Submitted on: Sun 03 May 2015 12:35:22 PM GMT
                Category: Booting
                Severity: Major
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Cory
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: 2.02~beta1
         Reproducibility: Every Time
         Planned Release: None

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Details:

Hi all.  I'm trying to have grub insert a modified DSDT table into my laptop's
(broken) ACPI implementation on boot.  As near as I can tell, grub2 somehow
doesn't like inserting the DSDT table.  I can load other ones (by making a
dump to file from /sys/firmware/acpi/tables/XXXX and then loading with grub's
acpi xxxx.dump).  With normal bootup, I get this:

[    0.000000] ACPI: Early table checksum verification disabled
[    0.000000] ACPI: RSDP 0x000F7B50 000024 (v02 HP    )
[    0.000000] ACPI: XSDT 0x7DFC81CC 000084 (v01 HPQOEM SLIC-MPC 00000001 HP  
00000001)
[    0.000000] ACPI: FACP 0x7DFC8084 0000F4 (v04 HP     30C3     00000003 HP  
00000001)
[    0.000000] ACPI: DSDT 0x7DFC8544 014584 (v01 HP     nc65xx   00010000 MSFT
03000001)
[    0.000000] ACPI: FACS 0x7DFE7D80 000040
[    0.000000] ACPI: SLIC 0x7DFC8250 000176 (v01 HPQOEM SLIC-MPC 00000001 HP  
00000001)
[    0.000000] ACPI: HPET 0x7DFC83C8 000038 (v01 HP     30C3     00000001 HP  
00000001)
[    0.000000] ACPI: APIC 0x7DFC8400 000068 (v01 HP     30C3     00000001 HP  
00000001)
[    0.000000] ACPI: MCFG 0x7DFC8468 00003C (v01 HP     30C3     00000001 HP  
00000001)
[    0.000000] ACPI: TCPA 0x7DFC84A4 000032 (v02 HP     30C3     00000001 HP  
00000001)
[    0.000000] ACPI: ASF! 0x7DFC84D8 000069 (v16 HP     CHIMAYU  00000001 HP  
00000000)
[    0.000000] ACPI: SSDT 0x7DFDCAC8 000328 (v01 HP     HPQSAT   00000001 MSFT
03000001)
[    0.000000] ACPI: SSDT 0x7DFDCDF0 00014E (v01 HP     HPQPRN   00000001 MSFT
03000001)
[    0.000000] ACPI: SSDT 0x7DFDD946 00025F (v01 HP     Cpu0Tst  00003000 INTL
20060317)
[    0.000000] ACPI: SSDT 0x7DFDDBA5 0000A6 (v01 HP     Cpu1Tst  00003000 INTL
20060317)
[    0.000000] ACPI: SSDT 0x7DFDDC4B 0004D7 (v01 HP     CpuPm    00003000 INTL
20060317)


Trying just the "acpi dsdt.dump" to grub, I get this:

[    0.000000] ACPI: Early table checksum verification disabled
[    0.000000] ACPI: RSDP 0x0009F500 000024 (v03       )
[    0.000000] ACPI: XSDT 0x7D1091E1 000024 (v01                 00000000     
00000000)
[    0.000000] ACPI BIOS Error (bug): Invalid table length 0x24 in RSDT/XSDT
(20140424/tbutils-336)

 Is there something I'm missing? A more broken-than-usual computer?  It's an
HP 8710W fwiw... well-known to have some broken bios.  Thanks




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