On Mon 21 Apr 2025 at 20:30:01 (-0400), Arbol One wrote: > > In my Debian 12, the keyboard stopped working all of the sudden, i > tried using the 'Screen Keyboard', but it didn't work either. Coming > from the world of Windows 10, I intended to reinstall the Debian. > With the memory stick containing the Debian installation files > plugged, I proceeded to reboot the computer. > The booting process then tells me something I've never seen before, > something along the lines of > > 'Something went terribly wrong. Security Policy Violation, ... , SBAT > self check failed, ... ' > > > What's going on with Debian 12, I'm not allowed to reinstall Debian? > > Do I need to install Windows 11, and then reinstall Debian? > > If anyone can suggest a better solution > it would be greatly appreciated. > > Thanks in advance. > > PD : > > After the 'Screen Blackout' kicked in and then moving the mouse, I was > asked to enter the password, and the keyboard worked! > > However, the keyboard doesn't work on any other application; no matter > what key I press.
Searching the web with SBAT self check failed turns up several hits, and they range from Windows updating the list of bad signatures (which would assume you have Secure Boot set, and a dual-booting Windows/linux system), to the effect of malware altering the boot system of the machine to its own ends. So I'd keep the machine switched off, and do some research to see what applies in your case. Your PD bit (is that a postscript?) isn't very clear about when the 'Screen Blackout' occurred. Was this when the keyboard originally stopped working, or after you rebooted and got the error message? And which password was it that you typed? Cheers, David.
