Hi Ariel, thanks for the pictures! This is interesting, seems you're facing a USB host controller breakage, so all your USB devices are frozen. Can you try something, in order for us to be sure about that? Please, setup a SSH server [0], and after the freeze, try to connect to the machine using SSH. I'm wondering if the system is working "fine", only USB is broken. That will help us to debug.
Oh, and in case you don't have multiple computers, you could use an Android/iOS ssh client to access the computer, just for the testing perspective. Thanks, Guilherme [0] https://help.ubuntu.com/community/SSH/OpenSSH/Configuring -- 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/1917194 Title: [Dell G5 5590] lspci freezes computer on Ubuntu 20.04 Status in linux package in Ubuntu: Confirmed Bug description: After upgrading from Ubuntu 18.04 to 20.04 my computer started to freeze when running lspci. I ended up noticing that it happened when trying to query device '1f:00.0' a USB port. After some kernel and bios updates the problem got worse. Now the computer freezes ~5 seconds after booting up. I tried: 1) Running in recovery mode, also freezes 2) Running an older kernel version (5.4.0-66-generic), also freezes 3) Removing nvidia drivers (just in case), also freezes 4) Running all combinations nodemodeset, acpi=off an nouveau blacklisting 5) Updating all drivers The computer freezes for ever, I can't switch TTYs, move the mouse, anything, the only way to leave was to force shutdown. On the last cases after switching to a tty I could see this messages before the freeze ocurred: kernel: xhci_hcd 0000:1f:00.0: PCI post-resume error -19! kernel: xhci_hcd 0000:1f:00.0: HC died; cleaning up Running Ubuntu 20.04 from a USB sticks works fine, as well as doing a fresh install. All logs were obtained by chrooting to the faulty partition from a fresh install, if there are any more logs that would be helpful, let me know. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1917194/+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
