Hello,
I've been using Fedora Core 3 as my primary workstation for a while now, probably since around the time it came out. Ever since then, I've had an intermittent problem with the mouse disconnecting/completely not responding while I'm in the middle of something--- but usually while my finger is on the keyboard, holding a key down (like Ctrl-clicking, etc). Keyboard is PS/2 though!

Unplugging it and plugging it back in allows it to resume.

This does not happen all the time, and has been easy enough to ignore. I can't reproduce it upon request, but it happens daily.

Both a Microsoft Explorer USB optical mouse and a Logitec USB optical mouse have had this problem. System is Fedora Core 3, kernel 2.6.11-1.14_FC3. lsusb reports: Bus 005 Device 004: ID 046d:c016 Logitech, Inc.

Hardware is a Dell Optiplex GX270. This happens using either the front or rear ports on this desktop. Other usb devices- iomega peerless, sandisk cruzer thumbdrive, lexar media thumbdrive, USB2 to RS232 adapter, all work great, too.

I can't figure this one out! Help!

Is there any information in /var/log/messages. Need to look for something on the lines of /dev/sda1.

eg. I get these entries on boot up for my USB scanner and pen drive:
Jul 11 18:43:31 falcon kernel: SCSI subsystem initialized
Jul 11 18:43:31 falcon kernel: Initializing USB Mass Storage driver...
Jul 11 18:43:31 falcon kernel: usb 2-2: new low speed USB device using ohci_hcd
and address 2
Jul 11 18:43:31 falcon kernel: input: USB HID v1.11 Keyboard [046a:0023] on usb-0000:00:03.0-2
Jul 11 18:43:31 falcon kernel: input: USB HID v1.11 Device [046a:0023] on usb-0000:00:03.0-2
Jul 11 18:43:31 falcon kernel: scsi0 : SCSI emulation for USB Mass Storage devices
Jul 11 18:43:31 falcon kernel: usbcore: registered new driver usb-storage
Jul 11 18:43:31 falcon kernel: USB Mass Storage support registered.
Jul 11 18:43:31 falcon kernel: usb 3-2: new full speed USB device using ohci_hcd and address 2

Example when I disconnect then reconnect my pen drive
Jul 15 20:27:32 falcon kernel: usb 1-1: USB disconnect, address 2
Jul 15 20:27:36 falcon kernel: usb 1-1: new high speed USB device using ehci_hcd and address 5
Jul 15 20:27:36 falcon kernel: scsi1 : SCSI emulation for USB Mass Storage devices
Jul 15 20:27:41 falcon kernel: Vendor: Model: USB DISK Pro Rev: PMAP
Jul 15 20:27:41 falcon kernel: Type: Direct-Access ANSI SCSI revision: 00
Jul 15 20:27:41 falcon kernel: SCSI device sda: 489472 512-byte hdwr sectors (251 MB)
Jul 15 20:27:41 falcon kernel: sda: Write Protect is off
Jul 15 20:27:41 falcon kernel: sda: assuming drive cache: write through
Jul 15 20:27:41 falcon kernel: SCSI device sda: 489472 512-byte hdwr sectors (251 MB)
Jul 15 20:27:41 falcon kernel: sda: Write Protect is off
Jul 15 20:27:41 falcon kernel: sda: assuming drive cache: write through
Jul 15 20:27:41 falcon kernel: sda: sda1
Jul 15 20:27:41 falcon kernel: Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
Jul 15 20:27:41 falcon kernel: Vendor: Model: USB DISK Pro Rev: PMAP
Jul 15 20:27:41 falcon kernel: Type: Direct-Access ANSI SCSI revision: 00
Jul 15 20:27:41 falcon kernel: SCSI device sdb: 2880 512-byte hdwr sectors (1 MB)
Jul 15 20:27:41 falcon kernel: sdb: Write Protect is off
Jul 15 20:27:41 falcon kernel: sdb: assuming drive cache: write through
Jul 15 20:27:41 falcon kernel: SCSI device sdb: 2880 512-byte hdwr sectors (1 MB)
Jul 15 20:27:41 falcon kernel: sdb: Write Protect is off
Jul 15 20:27:41 falcon kernel: sdb: assuming drive cache: write through
Jul 15 20:27:41 falcon kernel: sdb:
Jul 15 20:27:41 falcon kernel: Attached scsi removable disk sdb at scsi1, channel 0, id 0, lun 1
Jul 15 20:27:41 falcon scsi.agent[11029]: disk at /devices/pci0000:00/0000:00:03.2/usb1/1-1/1-1:1.0/host1/target1:0:0/1:0:0:0
Jul 15 20:27:41 falcon scsi.agent[11070]: disk at /devices/pci0000:00/0000:00:03.2/usb1/1-1/1-1:1.0/host1/target1:0:0/1:0:0:1

May be irrelevant and USB mice work differently but unless its hardware then there should be some indication as to the problem.

ThePhantom

I have problems using USB mice on some Linux distros. It maybe a good idea to have a usb to ps2 converter, so that your mouse is configured as a ps2 mouse on those Linux distros that have problems with usb mice.

Here's what I get in /var/log/messages:

Jul 18 10:48:58 lentz_b880 kernel: usb 5-2: USB disconnect, address 6
Jul 18 10:48:58 lentz_b880 hal.hotplug[26505]: DEVPATH is not set
Jul 18 10:49:00 lentz_b880 kernel: usb 5-2: new low speed USB device using uhci_hcd and address 7
Jul 18 10:49:00 lentz_b880 hal.hotplug[26549]: DEVPATH is not set
Jul 18 10:49:00 lentz_b880 kernel: input: USB HID v1.10 Mouse [Logitech Optical USB Mouse] on usb-0000:00:1d.3-2

dmesg:

usb 5-2: USB disconnect, address 6
usb 5-2: new low speed USB device using uhci_hcd and address 7
input: USB HID v1.10 Mouse [Logitech Optical USB Mouse] on usb-0000:00:1d.3-2


The disconnect messages might be me unplugging the mouse after it hangs in order to get it working again, other than that, though, there isn't anything else logged during the mouse freeze timeframe.