Sorry, I seem unable to reproduce the earlier success even after having the machine without power for over an hour: ACPI: PCI Interrupt Link [LK2E] enabled at IRQ 47 ACPI: PCI Interrupt 0000:83:00.0[A] -> Link [LK2E] -> GSI 47 (level, high) -> IRQ 47 PCI: Setting latency timer of device 0000:83:00.0 to 64 ALSA sound/pci/hda/hda_intel.c:2022: chipset global capabilities = 0x3500 ALSA sound/pci/hda/hda_intel.c:754: codec_mask = 0x2 ALSA sound/pci/hda/hda_codec.c:3242: autoconfig: line_outs=4 (0xd/0xf/0xe/0x10/0x0) ALSA sound/pci/hda/hda_codec.c:3246: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) ALSA sound/pci/hda/hda_codec.c:3250: hp_outs=1 (0x11/0x0/0x0/0x0/0x0) ALSA sound/pci/hda/hda_codec.c:3251: mono: mono_out=0x0 ALSA sound/pci/hda/hda_codec.c:3259: inputs: mic=0x14, fmic=0x0, line=0x13, fline=0x0, cd=0x0, aux=0x0 ALSA sound/pci/hda/hda_codec.c:275: Too many connections ALSA sound/pci/hda/hda_codec.c:2336: BUG? (info->nid) Pid: 1, comm: swapper Not tainted 2.6.26-rc7-00240-gfae47c0 #1 Call Trace: [<ffffffff804668ed>] snd_hda_build_pcms+0x1fc/0x29c [<ffffffff804ec225>] azx_probe+0x7ed/0x7fd [<ffffffff804639b5>] azx_send_cmd+0x0/0x130 [<ffffffff80463ae5>] azx_get_response+0x0/0x207 [<ffffffff8046320a>] azx_attach_pcm_stream+0x0/0x1a0 [<ffffffff80462ed4>] azx_power_notify+0x0/0x51 [<ffffffff80324bd1>] pci_device_probe+0xa9/0xf6 [<ffffffff803b138a>] driver_probe_device+0xb5/0x159 [<ffffffff803b1474>] __driver_attach+0x46/0x6d [<ffffffff803b142e>] __driver_attach+0x0/0x6d [<ffffffff803b0c9e>] bus_for_each_dev+0x44/0x78 [<ffffffff803b0630>] bus_add_driver+0xac/0x1e6 [<ffffffff803b1638>] driver_register+0xa2/0x11f [<ffffffff80324e4a>] __pci_register_driver+0x4a/0x7c [<ffffffff80660b68>] alsa_card_azx_init+0x0/0x15 [<ffffffff80644656>] kernel_init+0x146/0x28b [<ffffffff8020cc08>] child_rip+0xa/0x12 [<ffffffff80644510>] kernel_init+0x0/0x28b [<ffffffff8020cbfe>] child_rip+0x0/0x12 ACPI: PCI interrupt for device 0000:83:00.0 disabled HDA Intel: probe of 0000:83:00.0 failed with error -22 ALSA device list: No soundcards found. I will power it down now and try again tomorrow. Perhaps you can sprinkle some strategic printk statements? I'm certainly happy to try different configurations. To confirm, this machine is not in production use and repeated reboots are not an issue. Regards, Tony V.
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