plymouth: font missing at decrypt root prompt

[Tim Holmes-Mitra]

Fonts are missing (incorrectly displayed) at the plymouth splash screen when prompting for the luks decryption passphrase (ie just below the input box).

I have the same issue on my laptop (where this report has been generated) and my desktop (where the photo is from).

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: plymouth 22.02.122-3ubuntu1
ProcVersionSignature: Ubuntu 6.2.0-18.18-generic 6.2.6
Uname: Linux 6.2.0-18-generic x86_64
ApportVersion: 2.26.0-0ubuntu2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 23 19:40:58 2023
DefaultPlymouth: /usr/share/plymouth/themes/bgrt/bgrt.plymouth
InstallationDate: Installed on 2023-03-14 (9 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
MachineType: LENOVO 20XW0055UK
ProcCmdLine: BOOT_IMAGE=/vmlinuz-6.2.0-18-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.2.0-18-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
SourcePackage: plymouth
TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
UpgradeStatus: Upgraded to lunar on 2023-03-22 (1 days ago)
dmi.bios.date: 02/09/2023
dmi.bios.release: 1.59
dmi.bios.vendor: LENOVO
dmi.bios.version: N32ET83W (1.59 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20XW0055UK
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.33
dmi.modalias: dmi:bvnLENOVO:bvrN32ET83W(1.59):bd02/09/2023:br1.59:efr1.33:svnLENOVO:pn20XW0055UK:pvrThinkPadX1CarbonGen9:rvnLENOVO:rn20XW0055UK:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20XW_BU_Think_FM_ThinkPadX1CarbonGen9:
dmi.product.family: ThinkPad X1 Carbon Gen 9
dmi.product.name: 20XW0055UK
dmi.product.sku: LENOVO_MT_20XW_BU_Think_FM_ThinkPad X1 Carbon Gen 9
dmi.product.version: ThinkPad X1 Carbon Gen 9
dmi.sys.vendor: LENOVO

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Carlos Nihelton (cnihelton)]

I got squares on my prompt. I use ZFS on root with native encryption. The new font is missing in the initramfs.

lsinitramfs -l /boot/initrd.img-6.2.0-18-generic | grep font | grep ubuntu
drwxr-xr-x 2 root root 0 Mar 23 17:26 usr/share/fonts/truetype/ubuntu

After updating the plymouth hook `/usr/share/initramfs-tools/hooks/plymouth` to copy the new font files (lines 138 to 143) I got the expected behavior.

lsinitramfs -l /boot/initrd.img-6.2.0-18-generic | grep font | grep ubuntu
drwxr-xr-x 2 root root 0 Mar 23 17:58 usr/share/fonts/truetype/ubuntu
-rw-r--r-- 1 root root 171816 Nov 21 16:54 usr/share/fonts/truetype/ubuntu/UbuntuMono-Italic[wght].ttf
-rw-r--r-- 1 root root 685020 Nov 21 16:54 usr/share/fonts/truetype/ubuntu/Ubuntu[wdth,wght].ttf

Thanks @seb128 for the guidance.

[Daniel van Vugt (vanvugt)]

https://launchpad.net/ubuntu/+source/plymouth/22.02.122-3ubuntu2