System running 24.04 for many months now. Was on kernel 6.8.0-49-generic with no issues. Last night ran an update/upgrade and the system was upgraded to kernel 6.8.0-50-generic. After update the system boots up to the LUKS GUI prompt to ask for password. At this point I have about 2 seconds to type; I can usually get 4 or 5 characters in from my much longer password. Suddenly the display goes black for 2 seconds. When the display comes back, visually things look normal; however, I am no longer able to type and complete my password. At this point I have to power cycle the computer. If I use Grub Advanced options to force it to boot the older 6.8.0-49-generic kernel the system behaves normally, so definitely something new in 50. I also tried booting 50 in text mode by removing quiet and splash from the boot options. When doing it that way the LUKS text prompt is given. Just like before I have about 2 seconds to type before the screen blanks for 2 seconds. When it comes back in this mode though it allows me to continue typing and the system will come up. When 24.04 originally came out I remember some people had issues with AMD graphics card and being unable to boot in GUI mode. I assume that was fixed long time ago, so unlikely to be the same issue. Reminded me of it though. Anyone know what they broke? Google found me some Mint posts from users complaining about the same thing, so yay its not just me. What is the proper way to revert the system to 6.8.0-49, remove and hopefully black list 6.8.0-50? I can manually edit the grub.conf I guess, but there must be a more elegant way to deal with problematic updates; I would like to learn.
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Update to kernel 6.8.0-50-generic causing LUKS password prompt to hang on boot
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