On Ubuntu 18.04 (5.4.0-113-generic kernel), everything was working fine until computer froze and I did a hard shut down (held power button). On restart I got stuck at the splash screen with four dots. I have checked some other posts and tried the following without being able to troubleshoot.
- Booting with an older kernel (5.4.0-113) (still stuck on splash screen, Ctl+T gets to a terminal and flashing cursor, but non-responsive to keyboard input)
- Booting in recovery mode (get lots of "OKs" then a flashing cursor I cannot type into).
- Tried to edit grub with adding line nomodset (still got stuck on splash screen) -I booted to a USB of 18.04 and ran sudo fsck -f /dev/sda1 (my linux fileststem).
I expect something is wrong with the video card or video card driver. But not sure why that would occur suddenly. The splash screen is more pixelated than usual. It looks the same as it did a few years ago when I installed Ubuntu and before I installed the nvidia driver.
But I am not sure it makes sense to blame the driver that had previously been working well for several years.