[gentoo-user] I915 mobile firmware

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Peter Humphrey

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Nov 15, 2022, 12:10:03 PM11/15/22
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Hello list,

My new laptop shows this from /proc/cpuinfo:

--->8
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 154
model name : 12th Gen Intel(R) Core(TM) i7-12700H
stepping : 3
microcode : 0x421
--->8

I've been hunting around to find which modules I need to load from sys-kernel/
linux-firmware, and it isn't at all clear.

Some sources say that the processor is a mobile complement to Alder Lake 11th
gen, but I also see it as just Tiger Lake. The web seems full of helpful
information, but not quite helpful enough for me. :-(

--
Regards,
Peter.

William Kenworthy

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Nov 15, 2022, 7:00:04 PM11/15/22
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Install lshw - might give more info.

Boot off of an install, ubuntu, sysrescue or other live USB and
investigate dmesg.

BillK

Lee

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Nov 15, 2022, 8:20:03 PM11/15/22
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And lsusb, lspci,..(I think they're both readily available)

Lee 😎

Michael

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Nov 16, 2022, 7:00:03 AM11/16/22
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On Wednesday, 16 November 2022 01:19:24 GMT Lee wrote:
> And lsusb, lspci,..(I think they're both readily available)
>
> Lee 😎

lsusb won't offer much info on a CPU ...

lscpu should be more appropriate.



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Michael

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Nov 16, 2022, 7:00:03 AM11/16/22
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Intel's website mentions this 12th Gen CPU was *formerly* known as Alder Lake,
was released in Q1 2022, but does not make it clear what it is now named as:

https://www.intel.co.uk/content/www/uk/en/products/sku/132228/intel-core-i712700h-processor-24m-cache-up-to-4-70-ghz/specifications.html

So, I'd be inclined to take their word for it. This Wikipedia lists the
processor as a mobile Alder Lake:

https://en.wikipedia.org/wiki/Alder_Lake#Alder_Lake-H

The Tiger Lake processors are 11th Gen and their model numbering start with
11***.

This page also confirms your family and model number as per cpuinfo use the
Golden Cove (P-cores) microarchitecture:

https://en.wikichip.org/wiki/intel/microarchitectures/alder_lake#CPUID

sys-apps/dmidecode will provide additional information to determine the
specifics of what the MoBo firmware reports.

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