Red Hat Bugzilla – Bug 174963
USB devices fail after wakeup
Last modified: 2007-11-30 17:11:18 EST
Description of problem: I have an IBM T42p. With previous kernels I have been able to put the machine to sleep and then restore it with no adverse affects to the recognition of USB devices. With the latest kernel upgrade, after waking the machine no USB devices will be recognized. For example, after a restart, when I plug in a USB mouse I would get the following messages: Dec 4 20:22:30 bartali kernel: usb 3-1: new low speed USB device using uhci_hcd and address 2 Dec 4 20:22:30 bartali kernel: input: USB HID v1.00 Mouse [Cypress Sem PS2/USB Browser Combo Mouse] on usb-0000:00:1d.1-1 Dec 4 20:22:30 bartali hal.hotplug[3320]: DEVPATH is not set (subsystem input) Dec 4 20:22:30 bartali ntpd[2511]: synchronized to LOCAL(0), stratum 10 Dec 4 20:22:30 bartali ntpd[2511]: kernel time sync disabled 0041 Dec 4 20:22:33 bartali kernel: usb 3-1: USB disconnect, address 2 Dec 4 20:22:33 bartali hal.hotplug[3368]: DEVPATH is not set (subsystem input) After sleep and then wake, the kernel issues the following message, when I plug in the mouse again: Dec 4 20:23:21 bartali kernel: hub 3-0:1.0: over-current change on port 2 Dec 4 20:23:21 bartali kernel: hub 3-0:1.0: over-current change on port 1 Dec 4 20:23:21 bartali kernel: hub 3-0:1.0: over-current change on port 2 Dec 4 20:23:22 bartali kernel: hub 3-0:1.0: over-current change on port 1 I get the same messages with USB disks. Also Bluetooth devices, whic appear as a USB devices, no longer appear. Version-Release number of selected component (if applicable): 2.6.14-1.1644_FC4 How reproducible: always Steps to Reproduce: 1. put machine to sleep 2. wakeup 3. plug in USB device Actual results: messages about overcharge Expected results: USB devices are recognized with inserted. Additional info:
This is a mass-update to all currently open kernel bugs. A new kernel update has been released (Version: 2.6.15-1.1830_FC4) based upon a new upstream kernel release. Please retest against this new kernel, as a large number of patches go into each upstream release, possibly including changes that may address this problem. This bug has been placed in NEEDINFO_REPORTER state. Due to the large volume of inactive bugs in bugzilla, if this bug is still in this state in two weeks time, it will be closed. Should this bug still be relevant after this period, the reporter can reopen the bug at any time. Any other users on the Cc: list of this bug can request that the bug be reopened by adding a comment to the bug. If this bug is a problem preventing you from installing the release this version is filed against, please see bug 169613. Thank you.
This kernel fixes the problems I've had with USB and bluetooth. After wakeup bluetooth and usb is operational. Thanks.