I have a Huawei usb dongle and after a power cycle reboot all appears good:-
dave@withycombe:~$ uname -a Linux withycombe 4.4.0-30-generic #49-Ubuntu SMP Thu Jun 30 20:51:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux dave@withycombe:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04 LTS Release: 16.04 Codename: xenial dave@withycombe:~$ lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 8087:0a2a Intel Corp. Bus 001 Device 003: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 001 Device 005: ID 12d1:155e Huawei Technologies Co., Ltd. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub dave@withycombe:~$ ls -l /dev/ttyU* crw-rw---- 1 root dialout 188, 0 Jul 12 09:07 /dev/ttyUSB0 crw-rw---- 1 root dialout 188, 1 Jul 12 09:07 /dev/ttyUSB1 crw-rw---- 1 root dialout 188, 2 Jul 12 09:08 /dev/ttyUSB2 dave@withycombe:~$ However if I issue the command 'sudo reboot' then look at the system I don't get the /dev/ttyU* devices created. To be honest this bug is also complicated by fact that my Intel NUC computer does not always come back after a reboot. But that's a separate issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1435028 Title: Kernel does not detect already connected USB devices on boot Status in linux package in Ubuntu: Confirmed Bug description: The kernel does not always detect already connected USB devices on boot. I have an USB nic and an external mouse connected to my Laptop. Sometimes these devices are recognized after boot, sometimes they are missing. When they are not present after boot you have to unplug them and plug them again. This is inconvient and adds physical wear on the USB connectors. The kernel log shows no sign of a disconnect, so it seems the kernel does not recognize the devices as plugged in on boot. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-9-generic 3.19.0-9.9 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.16.2-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC1D0p: jan 1733 F...m pulseaudio /dev/snd/controlC1: jan 1733 F.... pulseaudio /dev/snd/controlC0: jan 1733 F.... pulseaudio CurrentDesktop: GNOME Date: Sun Mar 22 17:07:16 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-01-30 (50 days ago) InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: Dell Inc. XPS 13 9343 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-9-generic.efi.signed root=UUID=e4431ecc-e85e-4e35-92af-58f455c46c2b ro kvm-intel.nested=1 quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-9-generic N/A linux-backports-modules-3.19.0-9-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-03-19 (3 days ago) dmi.bios.date: 03/12/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A02 dmi.board.name: 0310JH dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA02:bd03/12/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 13 9343 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1435028/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
