Boot / Shutdown splash screen not displayed with linux-kernel-latest v4.16.2-1

[jharveyb]

Qubes OS version:

4.0 testing

Affected component(s):

Plymouth

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Steps to reproduce the behavior:

Install linux-kernel-latest v4.16.2-1 from testing
Shutdown and boot with kernel 4.16.2-1
Shutdown after boot

Expected behavior:

Plymouth loads after selecting kernel, showing Qubes logo with disk password prompt and progress bar below. On shutdown Qubes logo is displayed with progress bar below.

Actual behavior:

Plymouth does not load during either boot or shutdown so disk password prompt is shown in text mode, followed by kernel messages that are normally shown after pressing Home / Escape from Plymouth splash screen.

General notes:

Was running linux-kernel-latest v4.15.6-1 before this and Plymouth behaved as expected, could switch to view kernel messages per boot without issue for subsequent boots or shutdowns. After installing linux-kernel-latest v4.16.2-1, booting linux-kernel-latest v4.15.6-1 still presents the Plymouth splash screen correctly.

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Related issues:

QubesOS/updates-status#483

[jharveyb]

The same issue is present with QubesOS/updates-status#542

rebuilding the initramfs using sudo plymouth-set-default-theme qubes-dark -R does not change the behavior.

However, the tribar theme does work on boot, even though the system still defaults to text mode (have to explicitly switch back to graphical mode to display the tribar). The same behavior is seen on shutdown, though there is no tribar and just a empty screen with black background.

[jharveyb]

The same issue is present with QubesOS/updates-status#542

rebuilding the initramfs using sudo plymouth-set-default-theme qubes-dark -R does not change the behavior.

However, the tribar theme does work on boot, even though the system still defaults to text mode (have to explicitly switch back to graphical mode to display the tribar). The same behavior is seen on shutdown, though there is no tribar and just a empty screen with black background.