** Attachment added: "lsmod.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1917194/+attachment/5469940/+files/lsmod.log
-- 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: Incomplete 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
