However, if I boot into recovery mode, I can play the videos just fine. Here are the errors I'm getting from kern.log and syslog:
vlc_vlc.desktop[3877]: radeon: The kernel rejected CS, see dmesg for more information (-2)
kernel: [21688.584828] [drm:radeon_uvd_cs_msg [radeon]] ERROR Invalid UVD handle 0xe46a0001!
kernel: [21688.584988] [drm:radeon_cs_ioctl [radeon]] ERROR Invalid command stream !
This is my set up:
OS: Ubuntu 23.04
Motherboard: Asus Prime B350-Plus
Processor: AMD
Ryzen 5 1400 Graphics:Radeon HD 5450
How do I resolve this issue? Do I need to uninstall and then reinstall the open source AMD Radeon driver? Or should I uninstall the open source driver and install the proprietary driver from AMD's site?
I solved this issue by reinstalling Ubuntu. It's a bad solution because I did not figure out why the new UEFI BIOS update caused this issue or how to remediate it.