Comment 2 for bug 1330145

seem problem in acpi

[ 0.056622] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
[ 0.056756] ACPI: bus type PCI registered
[ 0.056846] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[ 0.056979] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[ 0.058002] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
[ 0.062578] PCI: Using configuration type 1 for base access

[ 0.141391] pci 0000:00:1b.0: [8086:1c20] type 00 class 0x040300
[ 0.141405] pci 0000:00:1b.0: reg 10: [mem 0xf7d00000-0xf7d03fff 64bit]
[ 0.141469] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
[ 0.141512] pci 0000:00:1b.0: System wakeup disabled by ACPI

try livecd of working Ubuntu 12.04 and compare system log