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Wed, 5 Nov 2025 14:55:23 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id ixsiDVtlC2lnaAAAD6G6ig (envelope-from ); Wed, 05 Nov 2025 14:55:23 +0000 From: Thomas Renninger To: srinivas pandruvada 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 Message-ID: <5615342.jMkzrH9lRO@linux.fritz.box> In-Reply-To: <356b1c77ef385158d062ad2ecebfa275dc663017.camel@linux.intel.com> References: <2764104.vuYhMxLoTh@localhost.localdomain> <356b1c77ef385158d062ad2ecebfa275dc663017.camel@linux.intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1829022.F6Skx1H6Bt"; micalg="pgp-sha256"; protocol="application/pgp-signature" X-Spam-Level: X-Spamd-Result: default: False [-5.40 / 50.00]; BAYES_HAM(-3.00)[99.99%]; SIGNED_PGP(-2.00)[]; SUBJECT_ENDS_QUESTION(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; NEURAL_HAM_SHORT(-0.20)[-1.000]; TO_DN_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FUZZY_RATELIMITED(0.00)[rspamd.com]; ARC_NA(0.00)[]; MISSING_XM_UA(0.00)[]; FREEMAIL_ENVRCPT(0.00)[yahoo.com]; RCPT_COUNT_THREE(0.00)[3]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[vger.kernel.org,yahoo.com]; RCVD_TLS_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo] X-Spam-Flag: NO X-Spam-Score: -5.40 --nextPart1829022.F6Skx1H6Bt Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8"; protected-headers="v1" From: Thomas Renninger To: srinivas pandruvada Cc: linux-pm@vger.kernel.org, ez2blost@yahoo.com Date: Wed, 05 Nov 2025 15:55:22 +0100 Message-ID: <5615342.jMkzrH9lRO@linux.fritz.box> MIME-Version: 1.0 On Mittwoch, 5. November 2025 14:06:42 Mitteleurop=C3=A4ische Normalzeit sr= inivas=20 pandruvada wrote: > Hi Thomas, >=20 > 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 =3D true Intel Turbo Boost Technology =3D true ... Not sure whether this really is the same bit and whether this is prove that= =20 IDA feature bit has been switched by Linux OS (by SMI/firmware?) after=20 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 test= s. Good luck, Thomas >=20 > We are trying to contact the manufacturer, but no solution yet. That is appreciated! --nextPart1829022.F6Skx1H6Bt Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- iQFPBAABCAA5FiEEo0EXulPW3gW/5bAoTxjWwdl3vVUFAmkLZVobFIAAAAAABAAO bWFudTIsMi41KzEuMTEsMiwyAAoJEE8Y1sHZd71V9SYH/11miU+DAkhbB9gKTfQi fsrgNn1ZKijxVfYhNB0Jn/4MO2dtDs6HcRhrqxXRzsUjtCfjBQojTwyvOg+FPO/i V+Jl9/7WEWaJLu6fdI/BjdJ95Z8+TCSJOP+Q2wLmnxrwksV7j5LaedAyYgsqLYcN td2O18iXkxV4haJihjqCN3fBza9dyUbKbHhH6INj43TtJF13NmQ3bWe4RxmC/DLH 1kxIyzVM+5O2Xy6u3GMflUKsT04YlzJFSYrRMqK+NYntAWicO8a9v0lrWWXNxHGL 7zg5cfuOYXH/OBWy3LlH8UFGGKaYeb1YFZh555SrihmlEvvTSldrbsajlXVOa2I7 tEU= =ANKd -----END PGP SIGNATURE----- --nextPart1829022.F6Skx1H6Bt--