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‎06-01-2025 11:00 PM

HP Recommended
Product: HP 15.6 inch Laptop PC 15-e2000 (2J4V9AV)
Operating System: Microsoft Windows 11

On 26th April, HP released a BIOS update for my laptop (HP Laptop 15-ef2126wm, AMD Ryzen 5 5500U with Radeon Graphics). I successfully installed this update and tried to use Linux (dual boot). So far, Linux and Windows were working seamlessly, yet this BIOS update disabled CPPC, so amd pstate drivers in Linux couldn't use CPPC so did not work. I have to use either the old acpi-cpufreq drivers or need to enable CPPC again. I tried Smokeless_UMAF and enable CPPC, but it did not work. What can I do now? Can HP developers fix this issue? I am a computer scientist, so I need Linux to work.

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