Re: [USB] uhci-hcd.c: b400: host controller halted after ACPI S3

From: Felipe Alfaro Solana
Date: Mon Nov 17 2003 - 18:08:24 EST


On Mon, 2003-11-17 at 22:05, Karol Kozimor wrote:
> Hi,
> In brief: After resuming from S3 (Suspend-To-RAM), my USB hosts go very
> bad.
>
> Less short:
> drivers/usb/host/uhci-hcd.c: b400: host system error, PCI problems?
> drivers/usb/host/uhci-hcd.c: b400: host controller halted. very bad
> drivers/usb/host/uhci-hcd.c: b400: host controller halted. very bad
>
> Those messages appear in the logs after a successful S3 resume. The USB
> mouse goes off and the HCDs work no more. Below is the lspci -v, attached
> it the dmesg output. I'll be happy to provide more info.

Try unloading uhci-hcd before suspending to S3. Then, load it again
after the system has been woken up from S3. At least, it works for me
:-)

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