I can do more testing if you need it or if you don't have access to this or similar motherboard.
-- 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/1649039 Title: USB 3.1 controller does weird magic: appears after Windows 10, disappears otherwise Status in linux package in Ubuntu: Confirmed Bug description: I have motherboard GA-Z170X-UD5 TH with 2 USB Type-C (USB 3.1/Thunderbolt 3) ports, BIOS version F20b. Both ports are "sleeping" on cold start - I can't boot from USB device plugged into any and both of these 2 USB Type-C ports. Ubuntu 17.04 as of December 11 doesn't see anything (no messages in dmesg). But magically situation changes when involve Windows 10 to the party. I boot into Windows PE based on Windows 10 and it happily see flash drive and my Nexus 6P connected to both ports. After this without unplugging mentioned devices I reboot into Ubuntu and "magic" - both flash drive and Nexus 6P work fine through these 2 USB Type-C ports. Even though it works in Ubuntu, BIOS still doesn't see anything. nazar-pc ~ lspci -d ::0c03 -k 00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31) Subsystem: Gigabyte Technology Co., Ltd Sunrise Point-H USB 3.0 xHCI Controller Kernel driver in use: xhci_hcd 0b:00.0 USB controller: Intel Corporation DSL6540 USB 3.1 Controller [Alpine Ridge] Subsystem: Device 2222:1111 Kernel driver in use: xhci_hcd But things are even more interesting: when I unplug either Nexus 6P or flash drive and then plug back - they still work fine! But as soon as I unplug both of them - Ubuntu doesn't see anything and doesn't post anything into dmesg until I boot into Windows 10 again. Interestingly, USB 3.1 controller disappears: nazar-pc ~ lspci -d ::0c03 -k 00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31) Subsystem: Gigabyte Technology Co., Ltd Sunrise Point-H USB 3.0 xHCI Controller Kernel driver in use: xhci_hcd nazar-pc ~ cat /proc/version_signature Ubuntu 4.9.0-10.11-lowlatency 4.9.0-rc8 --- ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: nazar-pc 3227 F.... pulseaudio /dev/snd/controlC1: nazar-pc 3227 F.... pulseaudio CurrentDesktop: Custom DistroRelease: Ubuntu 17.04 EcryptfsInUse: Yes IwConfig: Error: [Errno 2] Немає такого файла або каталогу MachineType: Gigabyte Technology Co., Ltd. Z170X-UD5 TH NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 EFI VGA ProcKernelCmdLine: root=UUID=5170aca4-061a-4c6c-ab00-bd7fc8ae6030 ro rootflags=subvol=root nosplash intel_pstate=disable initrd=/efi/ubuntu_efi_stub/initrd.img ProcVersionSignature: Ubuntu 4.9.0-10.11-lowlatency 4.9.0-rc8 RelatedPackageVersions: linux-restricted-modules-4.9.0-10-lowlatency N/A linux-backports-modules-4.9.0-10-lowlatency N/A linux-firmware 1.162 RfKill: Error: [Errno 2] Немає такого файла або каталогу Tags: zesty Uname: Linux 4.9.0-10-lowlatency x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo vboxusers _MarkForUpload: True dmi.bios.date: 11/07/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F20b dmi.board.asset.tag: Default string dmi.board.name: Z170X-UD5 TH-CF dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF20b:bd11/07/2016:svnGigabyteTechnologyCo.,Ltd.:pnZ170X-UD5TH:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnZ170X-UD5TH-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.name: Z170X-UD5 TH dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1649039/+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