Possible BIOS problems with amd-pstate

[EndeavourUser]

Powerprofiles werent supported by my device since it uses acpi_cpufreq i wanted to activate amd_pstate and after rebooting and checking it still said it uses acpi. I think it might be related to my BIOS with cppc settings. I tried to find something with a BIOS update but couldnt find anything i went to the software download page and it only had Windows available as a option.

Right now im using a linux arch based distro. A dmesg command also stated ccp related stuff wasnt working because of a broken BIOS. My final conclusion is if there is a workaround to enable cppc or to update/fix my bios so amd_pststate works

[VikramTheGreat]

Hi @EndeavourUser,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

Thank you for explaining your setup so clearly. You're absolutely right in your assessment, your HP Pavilion 15-eh1000 (2H5A6AV) laptop running Linux (Arch-based distro) is facing limitations due to:

• BIOS not exposing CPPC (Collaborative Processor Performance Control) features.
• amd_pstate not activating because the system defaults to acpi_cpufreq.
• HP does not officially supporting Linux drivers or BIOS updates for Linux platforms, especially for consumer-grade laptops.

I must keep you updated:

• HP does not provide Linux BIOS updates or support for Linux-specific features like CPPC or amd_pstate.
• BIOS updates are only available via Windows-based installers from the HP Software & Driver page.
• Linux users must either dual-boot Windows temporarily to apply BIOS updates or use a Windows PE USB if available.

1. Check for CPPC in BIOS (if available)

• Reboot and enter BIOS (usually by pressing Esc or F10 during startup).
• Look for settings like: 
  • CPPC (Collaborative Processor Performance Control)
  • AMD Cool’n’Quiet
  • Performance Boost Mode
• If these are missing, it confirms the BIOS doesn’t expose CPPC features.
   

2. Force amd_pstate Activation (Experimental)

You can try forcing amd_pstate=active via kernel parameters:  sudo nano /etc/default/grub
 

Add to GRUB_CMDLINE_LINUX_DEFAULT: amd_pstate=active
 

Then update GRUB: sudo grub-mkconfig -o /boot/grub/grub.cfg
 

Reboot and check with: cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver
 

If it still shows acpi_cpufreq, the BIOS is blocking CPPC.

I hope this helps.

Take care and have an amazing day!
 

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Regards,

VikramTheGreat