[Bug 1853061] Re: Connection to USB-C hub frequently drops when charging over it
I am now running Ubuntu 20.04 with kernel version 5.4.0-37-generic and have reproduced the bug after running the command # echo "file drivers/pci/* +p" > /sys/kernel/debug/dynamic_debug/control as was requested. Attached is the dmesg log. Attached to the Thunderbolt hub are an iphone and an external monitor. The connection drops a couple times over the period of the log. ** Attachment added: "dmesg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853061/+attachment/5384224/+files/dmesg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853061 Title: Connection to USB-C hub frequently drops when charging over it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1853061] Re: Connection to USB-C hub frequently drops when charging over it
I tried installing the deb files linux-headers-5.4.0-050400rc8_5.4.0-050400rc8.201911171930_all.deb linux-headers-5.4.0-050400rc8-generic_5.4.0-050400rc8.201911171930_amd64.deb linux-image-unsigned-5.4.0-050400rc8-generic_5.4.0-050400rc8.201911171930_amd64.deb linux-modules-5.4.0-050400rc8-generic_5.4.0-050400rc8.201911171930_amd64.deb and booting with the new kernel but my system did not seem to be wholly compatible. The proprietary nvidia drivers I am using (nvidia-driver-440 off of the Ubuntu graphics-drivers ppa) did not seem to be compatible with these kernel debs. I was unable to get to the Gnome desktop when trying to use nouveau drivers with kernel 5.4.0. I will try again and see if I can get to the desktop when I get a chance to debug the boot process in a day or two. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853061 Title: Connection to USB-C hub frequently drops when charging over it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1853061] Re: Connection to USB-C hub frequently drops when charging over it
Please test latest mainline kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4-rc8/ Under v5.4-rc8, run # echo "file drivers/pci/* +p" > /sys/kernel/debug/dynamic_debug/control And attach dmesg when this issue happens again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853061 Title: Connection to USB-C hub frequently drops when charging over it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1853061] Re: Connection to USB-C hub frequently drops when charging over it
I guess the manufacturer calls it a dock even though the computer does not actually dock into it, it attaches via a Thunderbolt 3 cable which I guess is different than USB-C . Sorry for the mistake. This entry in the lspci: 40:00.0 Ethernet controller [0200]: Intel Corporation I210 Gigabit Network Connection [8086:1533] (rev 03) is indeed over the dock (it disappears when the dock is unplugged; the other Ethernet controller remains so I guess it is the one in the laptop itself). When I ran the info reporting program the only connections I had to the dock were an ethernet cable to the dock's ethernet port and an external monitor from a USB-C port on the dock to the displayport out on the monitor. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853061 Title: Connection to USB-C hub frequently drops when charging over it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1853061] Re: Connection to USB-C hub frequently drops when charging over it
Seems like it's a Thunderbolt Dock comes with Intel I210 ethernet? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853061 Title: Connection to USB-C hub frequently drops when charging over it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
