Hardy won't boot on Clevo M720s

[perlhead]

Binary package hint: linux-source-2.6.24

Hardy fails to boot a Clevo M720s (OEM machine labeled "BANGHO" in Argentina) unless I disable either ACPI or SMP. Instead, it just freezes.

It did the same with Gutsy's CD. The machine is currently running Gutsy on top of the Feisty kernel (2..6.18-generic), which boots if run with the "noapic nolapic" options.

If I try to boot the Hardy CD with "noapic nolapic" but without "quiet splash", I see the machine freezes after the following output:

[47.327431] ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
[47.327430] ACPI: Processor [CPU0] (supports 8 throttling states)
[47.328445] ACPI: SSDT 37D962E8, 022D (r1 PmRef Cpu1Ist 3000 INTL 20050228)
[47.329109] ACPI: SSDT 37D95FB2, 022D (r1 PmRef Cpu1Ist 3000 INTL 20050228)
[47.330533] ACPI: CPU1 (power states: C1[C1] C2[C2] C3[C3])
[47.330730] ACPI: Processor [CPU1] (supports 8 throttling states)
[47.330882] ACPI Exception (processor_core-0816): AE_NOT_FOUND, Processor Device is not present [20070126]
[47.331063] ACPI Exception (processor_core-0816): AE_NOT_FOUND, Processor Device is not present [20070126]
[47.331235] ACPI Exception (processor_core-0816): AE_NOT_FOUND, Processor Device is not present [20070126]
[47.331405] ACPI Exception (processor_core-0816): AE_NOT_FOUND, Processor Device is not present [20070126]
[47.331574] ACPI Exception (processor_core-0816): AE_NOT_FOUND, Processor Device is not present [20070126]
[47.331743] ACPI Exception (processor_core-0816): AE_NOT_FOUND, Processor Device is not present [20070126]

The only way to revive the machine at this point is to power cycle.

The kernel *does* boot with either the 'nosmp' or 'acpi=off' options, but both options leave the notebook seriously crippled: either it limps along on only one core, or it can't do any power management.

I'm attaching the output of dmesg when booting with 2.6.18.

These are the contents of /proc/cpuinfo:
============================
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 14
model name : Intel(R) Core(TM) Duo CPU T2450 @ 2.00GHz
stepping : 12
cpu MHz : 1999.600
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc pni monitor est tm2 xtpr
bogomips : 4002.33
clflush size : 64

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 14
model name : Intel(R) Core(TM) Duo CPU T2450 @ 2.00GHz
stepping : 12
cpu MHz : 1999.600
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc pni monitor est tm2 xtpr
bogomips : 3999.32
clflush size : 64
============================

An this is the output of lspci -vvv:
============================
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 671MX
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
 Latency: 32
 Region 0: Memory at d0000000 (32-bit, non-prefetchable) [size=64M]
 Capabilities: [c0] AGP version 3.5
  Status: RQ=32 Iso- ArqSz=2 Cal=3 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3+ Rate=x4,x8
  Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>

00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS AGP Port (virtual PCI-to-PCI bridge) (prog-if 00 [Normal decode])
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0, Cache Line Size: 16 bytes
 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
 I/O behind bridge: 00009000-00009fff
 Memory behind bridge: d4000000-d40fffff
 Prefetchable memory behind bridge: c0000000-cfffffff
 Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
 BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-

00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS968 [MuTIOL Media IO] (rev 01)
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0

00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 01) (prog-if 80 [Master])
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 128
 Interrupt: pin ? routed to IRQ 9
 Region 0: I/O ports at 01f0 [size=8]
 Region 1: I/O ports at 03f4 [size=1]
 Region 2: I/O ports at 0170 [size=8]
 Region 3: I/O ports at 0374 [size=1]
 Region 4: I/O ports at 1000 [size=16]
 Capabilities: [58] Power Management version 2
  Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold+)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f) (prog-if 10 [OHCI])
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 32 (20000ns max)
 Interrupt: pin A routed to IRQ 10
 Region 0: Memory at d4104000 (32-bit, non-prefetchable) [size=4K]

00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f) (prog-if 10 [OHCI])
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 32 (20000ns max)
 Interrupt: pin B routed to IRQ 7
 Region 0: Memory at d4105000 (32-bit, non-prefetchable) [size=4K]

00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller (prog-if 20 [EHCI])
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 32 (20000ns max), Cache Line Size: 32 bytes
 Interrupt: pin C routed to IRQ 5
 Region 0: Memory at d4106000 (32-bit, non-prefetchable) [size=4K]
 Capabilities: [50] Power Management version 2
  Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME+

00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] 191 Gigabit Ethernet Adapter (rev 02)
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0
 Interrupt: pin A routed to IRQ 3
 Region 0: Memory at d4307000 (32-bit, non-prefetchable) [size=128]
 Region 1: I/O ports at 1080 [size=128]
 Capabilities: [40] Power Management version 2
  Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:05.0 IDE interface: Silicon Integrated Systems [SiS] SATA Controller / IDE mode (rev 03) (prog-if 8f [Master SecP SecO PriP PriO])
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 32
 Interrupt: pin A routed to IRQ 11
 Region 0: I/O ports at 1058 [size=8]
 Region 1: I/O ports at 104c [size=4]
 Region 2: I/O ports at 1050 [size=8]
 Region 3: I/O ports at 1048 [size=4]
 Region 4: I/O ports at 1020 [size=16]
 Capabilities: [58] Power Management version 2
  Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold+)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:06.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge (prog-if 00 [Normal decode])
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0, Cache Line Size: 16 bytes
 Bus: primary=00, secondary=09, subordinate=0a, sec-latency=0
 I/O behind bridge: 00003000-00004fff
 Memory behind bridge: dc000000-dfffffff
 Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
 BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
 Capabilities: [b0] Subsystem: Silicon Integrated Systems [SiS] Unknown device 0004
 Capabilities: [c0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
  Address: 0000000000000000 Data: 0000
 Capabilities: [d0] Express Root Port (Slot+) IRQ 0
  Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag+
  Device: Latency L0s <64ns, L1 <1us
  Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
  Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
  Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
  Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s L1, Port 0
  Link: Latency L0s <1us, L1 <2us
  Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch-
  Link: Speed 2.5Gb/s, Width x0
  Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug+ Surpise+
  Slot: Number 0, PowerLimit 0.000000
  Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet+ CmdCplt- HPIrq-
  Slot: AttnInd Off, PwrInd Off, Power-
  Root: Correctable- Non-Fatal- Fatal- PME-
 Capabilities: [f4] Power Management version 2
  Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge (prog-if 00 [Normal decode])
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0, Cache Line Size: 16 bytes
 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
 I/O behind bridge: 0000f000-00000fff
 Memory behind bridge: fff00000-000fffff
 Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
 BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
 Capabilities: [b0] Subsystem: Silicon Integrated Systems [SiS] Unknown device 0004
 Capabilities: [c0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
  Address: 0000000000000000 Data: 0000
 Capabilities: [d0] Express Root Port (Slot+) IRQ 0
  Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag+
  Device: Latency L0s <64ns, L1 <1us
  Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
  Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
  Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
  Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s L1, Port 0
  Link: Latency L0s <1us, L1 <2us
  Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch-
  Link: Speed 2.5Gb/s, Width x0
  Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug+ Surpise+
  Slot: Number 0, PowerLimit 0.000000
  Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq-
  Slot: AttnInd Off, PwrInd Off, Power-
  Root: Correctable- Non-Fatal- Fatal- PME-
 Capabilities: [f4] Power Management version 2
  Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:09.0 FLASH memory: ENE Technology Inc ENE PCI Memory Stick Card Reader Controller
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 32 (250ns min, 1000ns max), Cache Line Size: 16 bytes
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at 40000200 (32-bit, non-prefetchable) [size=128]
 Capabilities: [80] Power Management version 2
  Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:09.1 Generic system peripheral [0805]: ENE Technology Inc ENE PCI SmartMedia / xD Card Reader Controller (prog-if 01)
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 32 (8000ns min, 18000ns max), Cache Line Size: 16 bytes
 Interrupt: pin A routed to IRQ 11
 Region 0: Memory at 40000000 (32-bit, non-prefetchable) [size=256]
 Capabilities: [80] Power Management version 2
  Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:09.3 FLASH memory: ENE Technology Inc ENE PCI Secure Digital / MMC Card Reader Controller
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0 (8000ns min, 18000ns max)
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at 40000100 (32-bit, non-prefetchable) [size=256]
 Capabilities: [80] Power Management version 2
  Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0f.0 Audio device: Silicon Integrated Systems [SiS] Azalia Audio Controller
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0 (13000ns min, 2750ns max)
 Interrupt: pin A routed to IRQ 4
 Region 0: Memory at d4100000 (32-bit, non-prefetchable) [size=16K]
 Capabilities: [50] Power Management version 2
  Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:1f.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge (prog-if 00 [Normal decode])
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0, Cache Line Size: 16 bytes
 Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
 I/O behind bridge: 0000f000-00000fff
 Memory behind bridge: fff00000-000fffff
 Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
 BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
 Capabilities: [d0] Express Root Port (Slot+) IRQ 0
  Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag+
  Device: Latency L0s <64ns, L1 <1us
  Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
  Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
  Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
  Link: Supported Speed 2.5Gb/s, Width x16, ASPM L0s L1, Port 0
  Link: Latency L0s <1us, L1 <2us
  Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch-
  Link: Speed 2.5Gb/s, Width x0
  Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise-
  Slot: Number 0, PowerLimit 75.000000
  Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq-
  Slot: AttnInd Off, PwrInd Off, Power-
  Root: Correctable- Non-Fatal- Fatal- PME-
 Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
  Address: 00000000 Data: 0000
 Capabilities: [f4] Power Management version 2
  Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-
 Capabilities: [70] Subsystem: Silicon Integrated Systems [SiS] PCI-to-PCI bridge

01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 771/671 PCIE VGA Display Adapter (rev 10) (prog-if 00 [VGA])
 Subsystem: CLEVO/KAPOK Computer Unknown device 0720
 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Interrupt: pin A routed to IRQ 9
 BIST result: 00
 Region 0: Memory at c0000000 (32-bit, prefetchable) [size=256M]
 Region 1: Memory at d4000000 (32-bit, non-prefetchable) [size=128K]
 Region 2: I/O ports at 9000 [size=128]
 Capabilities: [40] Power Management version 2
  Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-
 Capabilities: [50] AGP version 3.0
  Status: RQ=256 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3+ Rate=x4,x8
  Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>
============================

[perlhead (fheinz)]

Erm... how do I get anybody at ubuntu to even acknowledge that this bug report exists? I mean, it's still marked "new" although it's been here for over six weeks...

[yannis (yannis-lg)]

Please ubuntu team help us !

[yannis (yannis-lg)]

You can try nmi_watchdog=1
You will get 2 cores :)

[perlhead (fheinz)]

On 30/07/2008, yannis wrote:
> You can try nmi_watchdog=1
> You will get 2 cores :)

Indeed, I do! Thanks!

Two problems with this:

1) we still don't know why this works, and it would be useful to correct it in
   such a way that people can make it work easily.
2) for some reason, ACPI will not shut down the machine when this is on.
   Actually, I'm not even sure that ACPI is working at all, I haven't had much
   time to play with the machine recently.

 Fede

[Leann Ogasawara (leannogasawara)]

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

[perlhead (fheinz)]

Good news. I just tried Intrepid Alpha 5, and the machine freezes bad with the default option, but boots fine with "noapic nolapic". I got it to boot once with just "nolapic", but when I tried it again it failed.

[yannis (yannis-lg)]

perlhead , help us there : http://bugzilla.kernel.org/show_bug.cgi?id=11166

people are working on it , so we will need no kernel options to boot !!!