On Sat, 2024-08-31 at 23:54 +0200, Ben Hutchings wrote: > Well, the driver source is there, but we didn't enable it until later > and then only on arm64.
You're correct, that explains why I could not find anything about it on /boot/config*. > Well this is very weird. > > Another possibility is a USB hub getting into a broken state which > isn't cleared by rebooting. But this doesn't seem very likely. Okay, did some further troubleshooting, and now it is working again with 0.142+deb12u1. Not quite sure what happened, but here are some observations. - Switched to GRUB_TERMINAL=console mode in /etc/default/grub since the keyboard and screen update is super laggy with 4K gfxmode. - Had one modification in initramfs.conf: MODULES=dep to save space on my rather small /boot, which I reverted. - Uninstalled the previous kernel (dpkg --purge linux-image-6.1.0-23- amd64), update-initramfs got stuck for some 10 minutes on each attempt (Ctrl-C and retry), until I rebooted the machine. After reboot, uninstalling the previous kernel worked as expected. - Did apt-mark unhold initramfs-tools initramfs-tools-core and upgraded again to the latest version: rebooted, and no problems entering LUKS password! Maybe this will remain a mystery if I can't reproduce this anymore. This AMD machine has a history of some USB related glitches, especially the Logitech Streamcam web camera (with USB C connection) crashes the whole USB stack when I try to use it. The same cam works fine on other Intel machine. with identical kernel etc. But this is the first time I had keyboard issues in initramfs, and the machine is several years old already. Go figure; anyway I think this can be closed for now. Thank you Ben for your help.
