(Please provide enough information to help the Debian
maintainers evaluate the report efficiently - e.g., by filling
in the sections below.)

Boot method: USB
Image version: https://cdimage.debian.org/cdimage/trixie_di_rc2/amd64/iso-cd/debian-trixie-DI-rc2-amd64-netinst.iso
Date: 2025-08-04

Machine: Lenovo T440s
Partitions: irrelevant


Base System Installation Checklist:
[O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it

Initial boot:           [E]
Detect network card:    [O]
Configure network:      [O]
Detect media:           [O]
Load installer modules: [O]
Clock/timezone setup:   [O]
User/password setup:    [O]
Detect hard drives:     [O]
Partition hard drives:  [O]
Install base system:    [O]
Install tasks:          [O]
Install boot loader:    [O]
Overall install:        [O]

Comments/Problems:

When booting this old laptop in UEFI mode the first installer menu is not displayed.
I could boot from the same installation media on a different computer, and the menu is shown.
I'm talking about the first menu, with these options:

- Graphical install
- Install
- Advanced options ...
- ...

Obviously the menu is using a graphics mode already, and apparently that mode cannot be set on my
laptop. When the menu should appear, the computer just beeps twice. Still it is possible to _use_ the
menu, without seeing it. I managed to access the rescue mode by pressing "down, down, enter, down, enter".
I could also start the installer by just pressing enter.

But maybe it would be safer to not use a graphical mode for that menu? Ubuntu for example is just using
a text menu on that level (even in version 25.04).

Hello,

Can you check if this is a duplicate of [1] and report if the workaround
in [2] fixes your issue?

In that case, you may also add a comment to [1] to inform GRUB
developers and also [3] so as to inform the Debian maintainer of GRUB.

[1] https://savannah.gnu.org/bugs/?65503
[2] https://savannah.gnu.org/bugs/?65503#comment2
[3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1088356

Regards

This is the installation image UEFI boot menu, powered by GRUB.

The installation image UEFI boot menu sets 800x600 graphic mode.
Does the same happen when booting the installed system (with GRUB
setting the default graphic resolution) ?

In the installation ISO image, GRUB main config file is
/boot/grub/grub.cfg. However the ISO 9660 filesystem is read-only, so it
may not be easy to modify it. Maybe it is easier to edit the early GRUB
config file /EFI/debian/grub.cfg in the embedded EFI system partition
(FAT filesystem) on the USB drive. Or if the issue also happens with the
installed system boot menu, just edit /boot/grub/grub.cfg on the
installed system.

Hello Fab and Pascal,

yes, this (bug 1110446) seems to be a duplicate of [1], and yes,
echoing something before switching to the graphics mode (comment 2[2])
indeed also fixed it. I left a comment under [1].

To your previous question, Pascal: no, in the installed system this
does not happen. But something with "Thinkpad" seems to briefly get
printed there also, just before Grub switches to the graphical menu.

Thanks for taking care of the problem, everyone!