I've the same problem in Macbook Pro 3.1 with Ubuntu 11.04. kernel: [ 2839.482286] usb 7-2: input irq status -75 received kernel: [ 2839.520243] hub 7-0:1.0: port 2 disabled by hub (EMI?), re-enabling... kernel: [ 2839.520255] usb 7-2: USB disconnect, address 3 kernel: [ 2839.521295] appletouch: atp_complete: usb_submit_urb failed with result -19 kernel: [ 2839.576393] input: appletouch disconnected kernel: [ 2839.860186] usb 7-2: new full speed USB device using uhci_hcd and address 4 kernel: [ 2840.080331] input: Apple Computer Apple Internal Keyboard / Trackpad as /devices/pci0000:00/0000:00:1d.2/usb7/7-2/7-2:1.0/input/input15 kernel: [ 2840.080594] apple 0003:05AC:021B.0008: input,hidraw0: USB HID v1.11 Keyboard [Apple Computer Apple Internal Keyboard / Trackpad] on usb-000 0:00:1d.2-2/input0 kernel: [ 2840.086195] appletouch: Geyser mode initialized. kernel: [ 2840.086371] input: appletouch as /devices/pci0000:00/0000:00:1d.2/usb7/7-2/7-2:1.1/input/input16 kernel: [ 2840.092401] input: Apple Computer Apple Internal Keyboard / Trackpad as /devices/pci0000:00/0000:00:1d.2/usb7/7-2/7-2:1.2/input/input17 kernel: [ 2840.092644] apple 0003:05AC:021B.0009: input,hidraw1: USB HID v1.11 Device [Apple Computer Apple Internal Keyboard / Trackpad] on usb-0000: 00:1d.2-2/input2 CRON[3874]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) kernel: [ 3472.097303] appletouch: OVERFLOW with data length 64, actual length is 0 kernel: [ 3472.168205] hub 7-0:1.0: port 2 disabled by hub (EMI?), re-enabling... kernel: [ 3472.168219] usb 7-2: USB disconnect, address 4 kernel: [ 3472.228335] input: appletouch disconnected
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