[ltp] swsusp2: hub 2-0:1.0: over-current change on port 1

[Carlos Moffat]

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On Wed, 2006-04-12 at 17:14 +0100, Damien Challet wrote:
> Dear All,
>=20
> Whenever I use a kernel with swsusp2 with ubuntu (2.6.12-ubuntu and=20
> 2.6.16-vanilla), after resuming from disk I get errors with usb which=20
> disappear if I unload the [ue]hci_hdc modules, but then I lose usb.
>=20
> [4295066.615000] - I/O speed: Write 50 MB/s, Read 52 MB/s.
> [4295066.800000] ACPI: PCI Interrupt 0000:00:1d.7[D] -> Link [LNKH] -> GS=
I 11=20
> (level, low) -> IRQ 11
> [4295066.801000] PCI: Setting latency timer of device 0000:00:1d.7 to 64
> [4295066.801000] ehci_hcd 0000:00:1d.7: EHCI Host Controller
> [4295066.801000] ehci_hcd 0000:00:1d.7: debug port 15 IN USE
> [4295066.802000] PCI: cache line size of 32 is not supported by device=20
> 0000:00:1d.7
> [4295066.824000] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned =
bus=20
> number 4
> [4295066.825000] ehci_hcd 0000:00:1d.7: irq 11, io mem 0xc0000000
> [4295066.825000] ehci_hcd 0000:00:1d.7: startup error -19
> [4295066.825000] ehci_hcd 0000:00:1d.7: USB bus 4 deregistered
> [...]
> [4295284.126000] hub 2-0:1.0: over-current change on port 1
> [4295284.227000] hub 2-0:1.0: over-current change on port 2
> [4295285.428000] hub 2-0:1.0: over-current change on port 1
> [4295286.727000] hub 2-0:1.0: over-current change on port 2
>=20
> Is this problem familiar to anybody else? Is is an irq problem?
>=20
> Thanks
>=20
> Damien
>=20

You have a few choices. They both have worked in the past for me:

1) Compile usb stuff in the kernel instead of as a module.
2) in your hibernate.conf, make sure you're unloading the affected
modules before hibernating (of course, you need them reloaded on
resume).

hope this helps.
Carlos

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