I have Bullseye installations with ATI, Intel and NVidia GPUs. All of them with 5.10.0-37-amd64 exhibit similar behavior, the difference being instead of copyright characters, they are just black: blanks or nulls or spaces. Ttys 2-6 are similar to reporter's, except that where a shell prompt should appear, a blinking underscore appears, but no visible prompt on otherwise black screens. These are all legacy BIOS PCs.
Moments ago I did an upgrade and reboot on a UEFI machine exclusive of the 5.10.0-37-amd64 kernel, and this errant behavior was not present with 5.10.0-36-amd64. I then installed 5.10.0-37-amd64, and rebooted to find the errant behavior present. /etc/default/console-setup contains: CHARMAP="UTF-8" CODESET="Lat15" FONTFACE="" FONTSIZE="" VIDEOMODE= https://lists.debian.org/debian-user/2025/12/msg00381.html is the OP of the mailing list thread about this. -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata

