There's a lot of reports of failures when using dongles with that chip. Some people have had success when switching to HDMI cables with better shielding.
On Fri, Feb 2, 2018, 01:40 Kai-Heng Feng <kai.heng.f...@canonical.com> wrote: > @Mario, > > The device I mentioned is a USB Type-C to HDMI UHD dongle, it uses a NXP > PTN5002 inside: > > T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 > D: Ver= 2.01 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 > P: Vendor=1fc9 ProdID=5002 Rev=01.00 > S: Manufacturer=NXP > S: Product=PTN5002 > S: SerialNumber=0000039e5595 > C: #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA > I: If#= 0 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) > > I just tried to use this dongle under Windows 10, same result. So > probably a hardware/firmware issue. > > The NXP PTN5002 works on Precision 3520's TBT port. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1745747 > > Title: > No USB support for Dell XPS 13 9370 running Bionic 18.04 > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745747/+subscriptions > -- 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/1745747 Title: No USB support for Dell XPS 13 9370 running Bionic 18.04 Status in linux package in Ubuntu: Confirmed Bug description: I recently received an XPS 13 9370. After taking a backup for 16.04 (in case this very thing happened), I installed the daily build of 18.04 as it didn't really make sense for me to hold on to a distro that'll be replaced in a couple of months. I noticed there were a few Dell repositories in sources.list, but non of them have bionic endpoints (only xenial). I copied those, in case they would be useful and went to erasing the disk and installing 18.04. Everything seems to work fine, except the USB / Thunderbolt ports. Nothing I try works, whether it be USB or Thunderbolt 3. If I look in dmesg, I can see the controller is recognising something, but it never lands in userspace: [ 1807.837379] xhci_hcd 0000:39:00.0: Host supports USB 3.1 Enhanced SuperSpeed [ 1807.837410] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003 [ 1807.837412] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 1807.837413] usb usb4: Product: xHCI Host Controller [ 1807.837414] usb usb4: Manufacturer: Linux 4.13.0-25-generic xhci-hcd [ 1807.837416] usb usb4: SerialNumber: 0000:39:00.0 [ 1807.837549] hub 4-0:1.0: USB hub found [ 1807.837558] hub 4-0:1.0: 2 ports detected --- ApportVersion: 2.20.8-0ubuntu6 Architecture: amd64 CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-01-19 (10 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180118) Package: linux (not installed) Tags: bionic wayland-session Uname: Linux 4.15.0-041500-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip libvirt lpadmin lxd plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745747/+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
