Ran into this issue today as well. My hardware is a Pi 3B with the boot disk attached to a USB port.
I can still connect to the Pi via SSH, so it appears to be merely a problem with the video output. Current focal "daily-preinstalled" server images seem to be broken from the get go. So for new installs I now use 20.04.2 images, which still work, then immediately downgrade and pin flash-kernel and linux- firmware-raspi2 packages: sudo apt install -y flash-kernel=3.98ubuntu12 linux-firmware-raspi2=1.20200212-0ubuntu1 cat <<EOF | sudo tee /etc/apt/preferences.d/raspi-hdmi-workaround Package: flash-kernel Pin: 3.98ubuntu12 Pin-Priority: 999 Package: linux-firmware-raspi2 Pin: 1.20200212-0ubuntu1 Pin-Priority: 999 EOF The root cause may actually lie with the flash-kernel package. I'm not sure how these two interact. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1888781 Title: failed to boot with 1.20200601+arm64-0ubuntu2~20.04.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware-raspi2/+bug/1888781/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
