lkml.org 
[lkml]   [2003]   [Sep]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: 2.4.22 USB problem (uhci)
From
Date
>>>>> "Greg" == Greg KH <greg@kroah.com> writes:
Greg> On Thu, Sep 18, 2003 at 08:10:48PM -0700, Jan Rychter wrote:
>> Upon disconnecting an USB mouse from a 2.4.22, I get
>>
>> uhci.c: efe0: host controller halted. very bad
>>
>> and subsequently, the machine keeps on spinning in ACPI C2 state,
>> never going into C3, as it should (since the mouse is the only USB
>> device).
>>
>> If afterwards I do 'rmmod uhci; modprobe uhci', then the machine
>> starts using the C3 state again.

Greg> If you use the usb-uhci driver, does it also do this?

If you mean strange messages, no, it doesn't. Using usb-uhci it just
says "USB disconnect..." and everything looks fine.

As to C-states, usb-uhci prevents Linux from *ever* entering C3, being
effectively unusable on some laptops -- so there is no way I can see the
same symptoms with it.

--J.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:48    [W:0.039 / U:24.768 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site