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[217.62.96.139]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-af91a0a3bd2sm420122066b.54.2025.08.02.03.34.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 02 Aug 2025 03:34:27 -0700 (PDT) Message-ID: Date: Sat, 2 Aug 2025 12:36:02 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Issue or bug concerning DRRS on old i7-4980HQ To: Jani Nikula , Rodrigo Vivi , =?UTF-8?B?VmlsbGUgU3lyasOkbMOk?= , Arun R Murthy Cc: intel-gfx@lists.freedesktop.org References: <3aebffd3-b3b7-4c3c-a7ac-816965d0204d@gmail.com> <77f3386d-756b-4cca-b317-1b3c5ad725fb@gmail.com> Content-Language: nl, en-US From: =?UTF-8?Q?Ren=C3=A9_Herman?= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On 01-08-2025 11:19, Jani Nikula wrote: > On Thu, 31 Jul 2025, René Herman wrote: >> Here's that Ubuntu launchpad bug on freedesktop.org, but including a >> possibly interesting fix from 5 months ago in the currently last comment: >> >> https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/3441 > > Might be useful to attach dmesg and VBT to the bug as described at [1]. Just in case: please note the freedesktop.org bug is not our bug but just a 4 year old same one. I also unfortunately don't have the hardware on hand, and it seems the person I am assisting with this can't due to vacation get to it right now. Although I'm not a graphics/display person, seems to me it's more or less fixed by Arun Murthy (added to the To: list) in the last, still recent-ish comment on that bug? https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/3441#note_2803858 I.e., could while working with the person with the hardware not figure out what the point of that i915_drrs_ctl would be if the system immediately enabled it again anyway, so Arun's approach seems to make sense to me. This is probably going to be a more common issue soon when these older no-TPM Haswell systems get installed with Linux at the end of Windows 10 support. Regards, Rene