Comment 28 for bug 1917062

To be fair, the bug was originally about the password prompt not being displayed, with the secondary issue about the artwork.

I enabled Plymouth debugging to try to capture relevant logs, but any time plymouth debugging was enabled, this issue did not present itself. Disabling plymouth debugging returned to the same issue. Maybe it's timing related?

VM configuration:
- Bionic host
- virt-manager 1:1.5.1-0ubuntu1.2
- qemu-kvm 1:2.11+dfsg-1ubuntu7.36
- 16 CPUs allocated, configured as model: EPYC-IBPB
- 4GB ram
- Single 20GB VirtIO disk stored on an SSD
- SATA CDROM where the image is being installed from
- virtio network device, bridged
- Generic PS2 mouse
- Generic PS2 keyboard
- EVTouch USB Graphics Tablet
- Display Spice: Spice server, Address, localhost only, no OpenGL
- Sound ich6
- Serial device 1: pty, /dev/pts/0
- Channel spice: spicevmc, virtio, com.redhat.spice.0
- Video QXL: 16 MiB, 1 head
- Controller PCI 0
- Controller IDE 0
- Controller VirtIO Serial 0
- Controller USB 0, USB 3
- Controller SATA 0
- USB Redirector 1, SpiceVMC
- USB Redirector 2, SpiceVMC

Installation steps:
1. Installing from Xubuntu 20210420 media
2. Click Install Xubuntu
3. Select language and Continue
4. Select Normal installation, Download updates while installing Xubuntu and Continue
5. Select Erase disk and install Xubuntu
6. Click Advanced features...
7. Select Use LVM with the new Xubuntu installation
8. Check Encrypt the new Xubuntu installation for security and OK
9. Click Install Now
10. Enter and confirm a security key and click Install Now. The following popup is displayed:
  The following partitions are going to be formatted:
  LVM VG vgxubuntu, LV root at ext4
  LVM VG vgxubuntu, LV swap_1 as swap
  partition #2 of Virtual disk 1 (vda) as ESP
11. Click Continue
12. Select timezone and Continue
13. Enter user details and Continue
14. Installation completes and device reboots
15. Following post and hidden grub, blank screen until you press Escape.

I also tried this with grub not hidden and with a timeout of 5, and with plymouth not debugging, there is still no visible password prompt.

Without plymouth debugging, is there another log that will suffice?