Hi Ariel, thanks for your report! So, let me clarify: now your system is freezing on boot, you don't need to run "lspci" to observe the freeze anymore? Can you try adding "ignore_loglevel" in the kernel command-line on Grub, and observe the boot progressing? If so, then please take a screenshot/photo when it freezes, so we can see the last messages observed.
If machine is booting fine with the USB stick, can you perform such boot and try lspci from the live Ubuntu image? If lspci is a reproducer, it is worth to collect a dmesg while the problem happens, so we can investigate if any message pops during the event. Thanks, Guilherme -- 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
