FS#71484 - Intel pstate driver not loading on 11th-gen Core (Tiger Lake)
Attached to Project:
Arch Linux
Opened by Curtis (foxcm2000) - Monday, 12 July 2021, 01:00 GMT
Last edited by Andreas Radke (AndyRTR) - Tuesday, 13 July 2021, 17:32 GMT
Opened by Curtis (foxcm2000) - Monday, 12 July 2021, 01:00 GMT
Last edited by Andreas Radke (AndyRTR) - Tuesday, 13 July 2021, 17:32 GMT
|
Details
Description:
I have a Tiger Lake system ("11th Gen Intel(R) Core(TM) i7-1165G7"). Since I have started using the system with Kernels 5.10 - 5.13, the Intel pstate driver has never loaded, and instead the acpi_cpufreq has been used. I recently tried to force-load the Intel pstate driver via the kernel command line, and got an error message that this CPU is not supported by the pstate driver (see notes below). As a new Intel CPU, I believe that Tiger Lake is supported by the pstate driver, and I'd like to figure out if this is an issue with Arch's kernel build or upstream with the kernel itself. Additional info: Package versions: Standard Arch Linux kernel (5.13.1 but all recent kernels have the same problem) Config: Kernel command line is reproduced below. The performance scaling governor option is recognized, but the intel_pstate driver fails to load. Additional Notes: Here's the output of dmesg with a grep filter for "pstate" showing my kernel parameters and the error message: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=e7b73f36-c0d9-4d7f-91e2-d18312fe67aa rw loglevel=3 elevator=noop intel_pstate=force cpufreq.default_governor=performance quiet [ 0.048935] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=e7b73f36-c0d9-4d7f-91e2-d18312fe67aa rw loglevel=3 elevator=noop intel_pstate=force cpufreq.default_governor=performance quiet [ 0.580320] intel_pstate: CPU model not supported |
This task depends upon
[1] https://github.com/torvalds/linux/blob/v5.13/drivers/cpufreq/intel_pstate.c#L2068