frantisek holop, 30 May 2015 00:23: > 4. IIUC, something is wrong with the usb hub > and in the process the boot device is lost. > i tried disabling xhci, no disabled port messages, > however no usb at all. bios has no usb legacy options.
according to the linux dmesg, some of the string descriptors are malformed: [ 7.398979] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 7.398984] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 7.398988] usb usb1: Product: xHCI Host Controller [ 7.398991] usb usb1: Manufacturer: Linux 3.13.0-37-generic xhci_hcd [ 7.398994] usb usb1: SerialNumber: 0000:00:14.0 [ 7.399972] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003 [ 7.399976] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 7.399979] usb usb2: Product: xHCI Host Controller [ 7.399983] usb usb2: Manufacturer: Linux 3.13.0-37-generic xhci_hcd [ 7.399986] usb usb2: SerialNumber: 0000:00:14.0 [ 7.713376] usb 1-2: new high-speed USB device number 2 using xhci_hcd [ 7.731567] usb 1-2: New USB device found, idVendor=05e3, idProduct=0608 [ 7.731574] usb 1-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0 [ 7.731577] usb 1-2: Product: USB2.0 Hub [ 7.901178] usb 1-4: new high-speed USB device number 3 using xhci_hcd [ 7.988058] usb 1-4: New USB device found, idVendor=1bcf, idProduct=2c57 [ 7.988061] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 7.988063] usb 1-4: Product: HD WebCam [ 7.988064] usb 1-4: Manufacturer: NC2141102T503020A3LM09 [ 8.129517] usb 1-2.1: new full-speed USB device number 4 using xhci_hcd [ 8.148652] usb 1-2.1: string descriptor 0 malformed (err = -61), defaulting to 0x0409 [ 8.152390] usb 1-2.1: New USB device found, idVendor=0489, idProduct=e04e [ 8.152392] usb 1-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 8.225338] usb 1-2.3: new high-speed USB device number 5 using xhci_hcd [ 8.243074] usb 1-2.3: New USB device found, idVendor=125f, idProduct=102e [ 8.243077] usb 1-2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 8.243078] usb 1-2.3: Product: USB Flash Drive [ 8.243080] usb 1-2.3: Manufacturer: USB 2.0 [ 8.243081] usb 1-2.3: SerialNumber: 43a67742cf415a [ 8.248217] usb-storage 1-2.3:1.0: USB Mass Storage device detected [ 8.248501] scsi2 : usb-storage 1-2.3:1.0 [ 8.248608] usbcore: registered new interface driver usb-storage [ 22.606182] usbcore: registered new interface driver btusb [ 22.844086] usbcore: registered new interface driver ath3k [ 22.929986] usbcore: registered new interface driver uvcvideo [ 23.029317] usb 1-2.1: USB disconnect, device number 4 [ 23.229541] usb 1-2.1: new full-speed USB device number 6 using xhci_hcd [ 23.247279] usb 1-2.1: string descriptor 0 malformed (err = -61), defaulting to 0x0409 [ 23.250613] usb 1-2.1: New USB device found, idVendor=0489, idProduct=e04e [ 23.250620] usb 1-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 -- i couldn't repair your brakes so i made your horn louder.
