Hi Everyone, As some of the group regulars know I've been having problems with my laptop "flipping out" lately. When pressure is applied to the case in a certain way, anything connected on USB stops working, and I get a slew of errors in dmesg (attached below). The computer will also refuse to boot the first 20 or so times that I hit the power button after such an event. To get it to turn back on I have to shake it, disconnect the power supply, etc. a few times. The really weird thing is that I can negate the effects of the "flip out" by suspending and resuming the laptop before a complete power down (at least this seems to work consistently, I'm not completely sure if this is actually connected or not).
My first intuition was that it might be a short, so I opened up my case and covered most of the bare metal with either plastic or electrical tape. For a while, the computer would also turn itself off, and the electrical tape fix seems to have at least remedied that behavior. Does anyone have any ideas on how to troubleshoot this sort of issue? It seems almost certain to me that its electrical in nature, but short of what I've done I don't really have any ideas. -Ed ==================================================================== [ 2437.744104] usb 1-1: USB disconnect, address 2 [ 2438.052062] usb 1-1: new full speed USB device using uhci_hcd and address 3 [ 2438.172170] usb 1-1: device descriptor read/64, error -71 [ 2438.396053] usb 1-1: device descriptor read/64, error -71 [ 2438.612070] usb 1-1: new full speed USB device using uhci_hcd and address 4 [ 2438.732056] usb 1-1: device descriptor read/64, error -71 [ 2438.956131] usb 1-1: device descriptor read/64, error -71 [ 2439.172058] usb 1-1: new full speed USB device using uhci_hcd and address 5 [ 2439.580046] usb 1-1: device not accepting address 5, error -71 [ 2439.692043] usb 1-1: new full speed USB device using uhci_hcd and address 6 [ 2440.104051] usb 1-1: device not accepting address 6, error -71 [ 2440.105410] hub 1-0:1.0: unable to enumerate USB device on port 1 [ 2440.106752] hub 3-0:1.0: port 1 disabled by hub (EMI?), re-enabling... [ 2440.106763] usb 3-1: USB disconnect, address 5 [ 2440.107160] btusb_intr_complete: hci0 urb ffff880074099600 failed to resubmit (19) [ 2440.111402] btusb_send_frame: hci0 urb ffff880060b29cc0 submission failed [ 2440.600069] usb 3-1: new full speed USB device using uhci_hcd and address 6 [ 2440.720071] usb 3-1: device descriptor read/64, error -71 [ 2440.944056] usb 3-1: device descriptor read/64, error -71 [ 2441.160051] usb 3-1: new full speed USB device using uhci_hcd and address 7 [ 2441.280063] usb 3-1: device descriptor read/64, error -71 [ 2441.504071] usb 3-1: device descriptor read/64, error -71 [ 2441.720060] usb 3-1: new full speed USB device using uhci_hcd and address 8 [ 2442.128053] usb 3-1: device not accepting address 8, error -71 [ 2442.240052] usb 3-1: new full speed USB device using uhci_hcd and address 9 [ 2442.648041] usb 3-1: device not accepting address 9, error -71 [ 2442.649393] hub 3-0:1.0: unable to enumerate USB device on port 1
