More details: upon resume from sleep, after pluging in an external monitor to be able to trigger whatever makes the screen come up, the tty 1 shows the following:
Ubuntu 16.04 LTS metall tty1 metall login: [ 7875.907520] xhci_hcd 0000:00:14.0: Command comp letion event does not match command [ 7876.111524] usb 2-3: device not accepting address 4, error -62 [ 7880.915458] xhci_hcd 0000:00:14.0: Error while assigning device slot ID [ 7880.915482] xhci_hcd 0000:00:14.0: Max number of devices this xHCI host supports is 32. [ 7880.915504] usb usb1-port1: couldn't allocate usb_device [ 7886.707269] xhci_hcd 0000:00:14.0: Command completion event does not match command [ 7892.126537] usb 2-3: device not accepting address 5, error -62 For comparison, the "lsusb" command prints: $ lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 05ac:0259 Apple, Inc. Bus 001 Device 006: ID 05ac:8289 Apple, Inc. Bus 001 Device 002: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth) Bus 001 Device 007: ID 413c:3016 Dell Computer Corp. Optical 5-Button Wheel Mouse Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Of note: when the screen is black, the keyboard LED lighting doesn't come up either. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575148 Title: Ubuntu 16.04 with kernel 4.4.0.21 does not recognize at all the nvidia card of a macbook pro 11,1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575148/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
