#1004130 debian logo displayed partly off screen

Package:
plymouth
Source:
plymouth
Description:
boot animation, logger and I/O multiplexer
Submitter:
Marc Haber
Date:
2026-01-10 11:39:24 UTC
Severity:
normal
#1004130#5
Date:
2022-01-21 13:11:30 UTC
From:
To:
Hi,

I have an AMD Ryzen computer with two displays. xrandr output:
Screen 0: minimum 320 x 200, current 5440 x 2160, maximum 16384 x 16384
DisplayPort-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 941mm x 529mm
HDMI-A-0 connected 1600x1200+3840+0 (normal left inverted right x axis y axis) 408mm x 306mm

fwiw, HDMI-A-0, the smaller display, is adapted from HDMI first to
DisplayPort and then to DVI.

When booting this machine, plymouth displays the Debian logo in the very
lower right edge of the big screen conneted to DisplayPort-0. The entry
field that prompts for the LUKS pass phrase is entirely off-screen and
invisible, and so is the error message if something goes wrong with
unlocking the filesystems.

The monitor gets a proper signal formatted for 3840x2160, the native
resolution of the panel.

On a notebook with a single Full-HD Display (1920x1080), the Debian logo
is properly centered, with the LUKS prompt visible.

If you can give me ideas about what to try and how to get logs, I can
give more information, but at the moment I am kind of at a loss here.

Greetings
Marc

#1004130#10
Date:
2022-04-11 15:44:46 UTC
From:
To:
I have this bug too.
#1004130#15
Date:
2023-03-19 08:14:19 UTC
From:
To:
Hi,

I have this issue since upgrading from Bullseye to Bookworm. It was
working fine with Bullseye, but now with Bookworm my laptop Plymouth
login screen only show up the top left part of the theme image, with the
LUKS password entry field not visible (but functional).

In my case, it's related to multi-screens support. My laptop has a
native 2560x1440 screen, and is connected to an external display also
2560x1440.

When I use the laptop alone (no second screen), I use its native
resolution. Then on boot Plymouth works fine.

When the laptop is connected to the external screen, in order to deal
with the different sizes and dpi (problematic on X11, which I use with
KDE), I set the laptop screen to 1920x1080. Good enough, and there less
pixel density difference. In this case, on boot with Plymouth:

1)  The external screen show a proper theme image, with no input field;

2) The laptop screen only show the top-left part of the theme as described.

So it seems that the 1920x1080 resolution is applied already when
Plymouth starts, and Plymouth is not aware of it and display a 2560x1440
native content, which doesn't fit.

So the issue for me looks to be a mismanagement of the screen resolution
change. Either this should be done after Plymouth is done, or Plymouth
should be aware of it and use the actual resolution and not the native one.

For other people having this issue (Marc and Paul): do you also happen
to change the screen resolution on the screen where Plymouth has a
partial display?

Thanks

#1004130#20
Date:
2023-03-19 11:11:34 UTC
From:
To:
Actually, my laptop screen resolution configuration should not be
relevant: it's a KDE Plasma level setting, not available in an early
boot environment (root and home are even on an encrypted volume, not yet
mounted). I tried looking into /boot and the initramfs and can't find
any sign that the KDE screen setting is somewhat persisted there (but
could have missed it).

Still:
1) Laptop only: the Plymouth display is fine;
2) External screen connected: the external screen is OK, the Plymouth
display on the laptop is truncated.

The grub screen resolution configuration doesn't seem to have an effect
on this.

Thanks.

#1004130#25
Date:
2023-04-01 17:22:36 UTC
From:
To:
I have another laptop that works perfectly with the same external
screen. Also Bookworm, both up to date, same configurations for
Plymouth, initramfs and grub. I checked the initramfs content and
couldn't detect a difference related to the display.

The laptop with the issue is a Thinkpad X1 gen6, with a 2560x1440
display. The laptop that works fine is a Dell Latitude 7490, 1920x1080
screen.

A difference in behavior is that the Latitude shows the same thing on
both screens: I can see the LUKS entry field and my input on the
external screen too.

On the X1 however, the external screen has a fixed image with no input
field. The laptop screen is truncated so I can't see the input field,
but I assume it's present (I can enter the LUKS password just fine). So
it seems Plymouth displays different things on both screens. On Bullseye
it didn't behave this way: both screen showed the same thing on the X1
too, with no truncation on the laptop screen.

Suggestions on how to troubleshoot this welcomed ;)

#1004130#30
Date:
2025-02-25 08:37:16 UTC
From:
To:
There seem to be a race. With a different laptop using a Core Ultra 5
135U, connected by USB-C to two 4k screens, I can see 3 different kind
of behavior:

1) OK: both 4K displays show the same as the laptop screen, scaled.
Expected Plymouth Breeze theme screen. Rare;

2) Shift/scaling issue: the screen content is OK, but on the laptop it's
shifted as if it was a bigger image than the screen, centered. So one
can only see the bottom right corner. On both 4K displays the image only
uses the top-left corner. Rare;

3) Split: the Plymouth display has a top part, and on the bottom there
is the LUKS decryption input and later success message. In this case,
both are dissociated: on the 4k screen the regular display is top-left,
the LUKS message top-right. On the laptop things are shifted and one
can't see much. That's the most common case.

On another laptop I'm only ever see (3). This is on Trixie in both cases.

#1004130#35
Date:
2025-07-17 23:49:15 UTC
From:
To:
Dear Maintainer,

I've been on Trixie for a while and the Debian logo appears to be partially cut
off in the new splash screen. This problem didn't happen with the Bookworm
splash screen, before it was updated. I have two monitors side by side: the
left one is a 1920x1080 display and the right one is a 1600x1200 display. On
the left display, the logo doesn't appear at all, but on the right display you
can see a piece o the Debian logo at the bottom left corner.

#1004130#40
Date:
2026-01-10 10:08:08 UTC
From:
To:
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