Strange Pop OS 24.04 behavior
Summary
A user documents unusual behavior after upgrading to Pop! OS 24.04: a significant drop in CPU performance, inability to access BIOS when booting from a live USB, and a working system that won’t POST until the SSD is removed and the OS is rolled back to 22.04 with XMP enabled. The discussion expands into speculation about UEFI/firmware interactions and the new Cosmic desktop, with comments offering hardware and boot configuration troubleshooting, driver considerations, and distro comparisons.