*** This bug is a duplicate of bug 1848790 *** https://bugs.launchpad.net/bugs/1848790
I built a testing kernel, not only includes the fix for USB host, but also includes all new patches from https://github.com/raspberrypi/linux.git rpi-5.3.y branch (about 107 patches). I tested both arm64 and armhf kernels on Pi4 without HDMI monitor, everything works well. Could anybody help test these two kernels on Pi4 with HDMI monitor, Pi3 and Pi2 if you have any of them? After verifying the kernel will not introduce regression on Pi4/3/2, I will submit the patches to UBUNTU kernel. The new kernel could be downloaded: https://people.canonical.com/~hwang4/rpiv2/ To install and test the kernel: copy arm64 or armhf folders to rootfs of Pi, sudo dpkg -i linux-modules-xxxx.deb; sudo dpkg -i linux-image-xxx.deb;sudo reboot thx -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-raspi2 in Ubuntu. https://bugs.launchpad.net/bugs/1848703 Title: Raspberry Pi 4 - USB Bus not detecting any devices Status in linux-raspi2 package in Ubuntu: Confirmed Bug description: Pi 4 new install. System boots up but USB bus is not working. Tried 3 keyboards no key presses detected, 2 usb memory drives don't show up in lsblk. output of $lspci 00:00.0 PCI bridge: Broadcom Inc. and subsidiaries Device 2711 (rev 10) 01:00.0 USB controller: VIA Technologies, Inc. VL805 USB 3.0 Host Controller (rev 01) output of $dmesg on pastebin here http://pastebin.com/h7A3n9xa or attached to this bug report. Not the only one experiencing bug. Another user created a post on the ubuntu forums: https://ubuntuforums.org/showthread.php?t=2429396&s=01a0c4b0cb4c05e605cbf9d41f660e08&p=13898142#post13898142 64bit raspberry pi 4&4 image pulled from https://ubuntu.com/download/iot/raspberry-pi page. Specifically http://cdimage.ubuntu.com/releases/19.10/release/ubuntu-19.10 -preinstalled-server-arm64+raspi3.img.xz To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1848703/+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