I just experienced the same problem today on my Asus G752VT Republic of Gaming laptop. I ended up having to force a power-off by holding down the power button for five seconds because it was stuck trying to booting up. It also wouldn't properly reboot with ALT+CTRL+DEL, getting stuck doing that as well. Once I powered it back on again, I could regain control once I had GRUB boot into the previous kernel again (4.15.0-176). I was able to repeat the same problem by letting it boot into the newer kernel (4.15.0-177) and had to repeat the same steps to regain control again.
miles@unicron:~$ uname -a Linux unicron 4.15.0-176-generic #185-Ubuntu SMP Tue Mar 29 17:40:04 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux miles@unicron:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.6 LTS Release: 18.04 Codename: bionic Some lshw details on the model: *-core description: Motherboard product: G752VT vendor: ASUSTeK COMPUTER INC. physical id: 0 version: 1.0 serial: BSN12345678901234567 slot: MIDDLE *-firmware description: BIOS vendor: American Megatrends Inc. physical id: 0 version: G752VT.213 date: 01/06/2016 size: 64KiB capacity: 5952KiB capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification uefi -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1973357 Title: Kernel update to 4.15.0-177 fails to load some kernel modules To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1973357/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs