From: Thomas Renninger <trenn@suse.de>
To: srinivas pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: linux-pm@vger.kernel.org, ez2blost@yahoo.com
Subject: Re: Disabling Intel turbo on non IDA featured processor generally correct?
Date: Wed, 05 Nov 2025 15:55:22 +0100 [thread overview]
Message-ID: <5615342.jMkzrH9lRO@linux.fritz.box> (raw)
In-Reply-To: <356b1c77ef385158d062ad2ecebfa275dc663017.camel@linux.intel.com>
[-- Attachment #1: Type: text/plain, Size: 984 bytes --]
On Mittwoch, 5. November 2025 14:06:42 Mitteleuropäische Normalzeit srinivas
pandruvada wrote:
> Hi Thomas,
>
> The BIOS shipped with system disabled turbo on boot and user had to
> manually force via the sysfs. With the new change that is not an
> option.
User (adding EZ, sorry for missing you out on initial post)
claims that cpuid shows:
So I ran the cpuid commend and it returned:
Thermal and Power Management Features (6):
digital thermometer = true
Intel Turbo Boost Technology = true
...
Not sure whether this really is the same bit and whether this is prove that
IDA feature bit has been switched by Linux OS (by SMI/firmware?) after
initializing?
IDA cpufeature bit is not set in /proc/cpuinfo
EZ probably can do the one or other msr read/write if you need someone tests.
Good luck,
Thomas
>
> We are trying to contact the manufacturer, but no solution yet.
That is appreciated!
[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 525 bytes --]
next prev parent reply other threads:[~2025-11-05 14:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-28 12:47 Disabling Intel turbo on non IDA featured processor generally correct? Thomas Renninger
2025-11-05 13:06 ` srinivas pandruvada
2025-11-05 14:55 ` Thomas Renninger [this message]
2025-11-05 18:27 ` srinivas pandruvada
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5615342.jMkzrH9lRO@linux.fritz.box \
--to=trenn@suse.de \
--cc=ez2blost@yahoo.com \
--cc=linux-pm@vger.kernel.org \
--cc=srinivas.pandruvada@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.