Public bug reported:

My USB mouse keeps freezing for 1-2 seconds, and then resetting itself 
automatically. I think the kernel might be doing some fishy stuff because it 
works in an older kernel flawlessly.
Also, if I set the DPI to 800, it is reset to 400 when it 
disconnects/reconnects itself, which is kinda annoying.

Ubuntu Hardy 8.04 LTS
Kernel 2.6.24-19-rt
Logitech mx500 USB mouse

kern.log says:
Jun 27 22:50:00 Kraftwerk kernel: [  113.738703] 
/build/buildd/linux-2.6.24/debian/build/custom-source-rt/drivers/hid/usbhid/hid-core.c:
 input irq status -75 received
Jun 27 22:50:00 Kraftwerk kernel: [  113.838714] hub 7-0:1.0: port 1 disabled 
by hub (EMI?), re-enabling...
Jun 27 22:50:00 Kraftwerk kernel: [  113.838721] usb 7-1: USB disconnect, 
address 2
Jun 27 22:50:00 Kraftwerk kernel: [  113.959589] usb 7-1: new low speed USB 
device using uhci_hcd and address 3
Jun 27 22:50:00 Kraftwerk kernel: [  114.125403] usb 7-1: configuration #1 
chosen from 1 choice
Jun 27 22:50:00 Kraftwerk kernel: [  114.142565] input: B16_b_02 USB-PS/2 
Optical Mouse as /devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/input/input6
Jun 27 22:50:00 Kraftwerk kernel: [  114.160452] input,hidraw0: USB HID v1.10 
Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:1d.2-1
Jun 27 22:57:04 Kraftwerk kernel: [  537.734292] usb 7-1: USB disconnect, 
address 3
Jun 27 22:57:04 Kraftwerk kernel: [  537.964053] usb 7-1: new low speed USB 
device using uhci_hcd and address 4
Jun 27 22:57:04 Kraftwerk kernel: [  538.127285] usb 7-1: configuration #1 
chosen from 1 choice
Jun 27 22:57:04 Kraftwerk kernel: [  538.144420] input: B16_b_02 USB-PS/2 
Optical Mouse as /devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/input/input7
Jun 27 22:57:04 Kraftwerk kernel: [  538.162805] input,hidraw0: USB HID v1.10 
Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:1d.2-1
Jun 27 22:57:24 Kraftwerk kernel: [  557.579493] usb 7-1: USB disconnect, 
address 4
Jun 27 22:57:24 Kraftwerk kernel: [  557.803264] usb 7-1: new low speed USB 
device using uhci_hcd and address 5
Jun 27 22:57:24 Kraftwerk kernel: [  557.966603] usb 7-1: configuration #1 
chosen from 1 choice
Jun 27 22:57:24 Kraftwerk kernel: [  557.983758] input: B16_b_02 USB-PS/2 
Optical Mouse as /devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/input/input8
Jun 27 22:57:24 Kraftwerk kernel: [  558.004261] input,hidraw0: USB HID v1.10 
Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:1d.2-1
Jun 27 22:58:11 Kraftwerk kernel: [  605.199216] usb 7-1: USB disconnect, 
address 5
Jun 27 22:58:12 Kraftwerk kernel: [  605.428977] usb 7-1: new low speed USB 
device using uhci_hcd and address 6
Jun 27 22:58:12 Kraftwerk kernel: [  605.593953] usb 7-1: configuration #1 
chosen from 1 choice
Jun 27 22:58:12 Kraftwerk kernel: [  605.611101] input: B16_b_02 USB-PS/2 
Optical Mouse as /devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/input/input9
Jun 27 22:58:12 Kraftwerk kernel: [  605.628734] input,hidraw0: USB HID v1.10 
Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:1d.2-1
Jun 27 23:00:33 Kraftwerk kernel: [  747.050316] 
/build/buildd/linux-2.6.24/debian/build/custom-source-rt/drivers/hid/usbhid/hid-core.c:
 input irq status -75 received
Jun 27 23:00:34 Kraftwerk kernel: [  747.274694] hub 7-0:1.0: port 1 disabled 
by hub (EMI?), re-enabling...
Jun 27 23:00:34 Kraftwerk kernel: [  747.274702] usb 7-1: USB disconnect, 
address 6
Jun 27 23:00:34 Kraftwerk kernel: [  747.401564] usb 7-1: new low speed USB 
device using uhci_hcd and address 7
Jun 27 23:00:34 Kraftwerk kernel: [  747.564901] usb 7-1: configuration #1 
chosen from 1 choice
Jun 27 23:00:34 Kraftwerk kernel: [  747.582056] input: B16_b_02 USB-PS/2 
Optical Mouse as /devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/input/input10
Jun 27 23:00:34 Kraftwerk kernel: [  747.601728] input,hidraw0: USB HID v1.10 
Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:1d.2-1
Jun 27 23:00:40 Kraftwerk kernel: [  753.653023] usb 7-1: USB disconnect, 
address 7
Jun 27 23:00:41 Kraftwerk kernel: [  754.228361] usb 7-1: new low speed USB 
device using uhci_hcd and address 9
Jun 27 23:00:41 Kraftwerk kernel: [  754.391773] usb 7-1: configuration #1 
chosen from 1 choice
Jun 27 23:00:41 Kraftwerk kernel: [  754.408929] input: B16_b_02 USB-PS/2 
Optical Mouse as /devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/input/input11
Jun 27 23:00:41 Kraftwerk kernel: [  754.431357] input,hidraw0: USB HID v1.10 
Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:1d.2-1
Jun 27 23:01:09 Kraftwerk kernel: [  782.992894] usb 7-1: USB disconnect, 
address 9
Jun 27 23:01:10 Kraftwerk kernel: [  783.489430] usb 7-1: new low speed USB 
device using uhci_hcd and address 10
Jun 27 23:01:10 Kraftwerk kernel: [  783.655273] usb 7-1: configuration #1 
chosen from 1 choice
Jun 27 23:01:10 Kraftwerk kernel: [  783.672440] input: B16_b_02 USB-PS/2 
Optical Mouse as /devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/input/input12
Jun 27 23:01:10 Kraftwerk kernel: [  783.690178] input,hidraw0: USB HID v1.10 
Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:1d.2-1
Jun 27 23:01:15 Kraftwerk kernel: [  788.488001] usb 7-1: USB disconnect, 
address 10
Jun 27 23:01:15 Kraftwerk kernel: [  788.970552] usb 7-1: new low speed USB 
device using uhci_hcd and address 11
Jun 27 23:01:16 Kraftwerk kernel: [  789.133542] usb 7-1: configuration #1 
chosen from 1 choice
Jun 27 23:01:16 Kraftwerk kernel: [  789.150676] input: B16_b_02 USB-PS/2 
Optical Mouse as /devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/input/input13
Jun 27 23:01:16 Kraftwerk kernel: [  789.167422] input,hidraw0: USB HID v1.10 
Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:1d.2-1

...etc etc etc...

** Affects: ubuntu
     Importance: Undecided
         Status: New

-- 
USB port keeps resetting Logitech mx500 mouse
https://bugs.launchpad.net/bugs/243707
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