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Thu, 15 Oct 2026 02:55:12 -0700 (PDT) Received: from [192.168.60.5] ([207.115.103.98]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-5361269f364sm21663911cf.2.2026.10.15.02.55.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 Oct 2026 02:55:11 -0700 (PDT) Message-ID: <2df90a2a-770b-4439-9d01-bd8105084719@gmail.com> Date: Thu, 15 Oct 2026 17:55:07 +0800 Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v3] platform/x86: panasonic-laptop: Add platform_profile support To: Wu Zhipeng Cc: platform-driver-x86@vger.kernel.org, linux-acpi@vger.kernel.org, Ilpo Jarvinen , Hans de Goede , Hans de Goede , Kenneth Chan References: <20261007190446.38862-1-alexyeo362@gmail.com> Content-Language: en-US From: Alex Yeo In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Wu, Thanks for testing the patch on a CF-SV1. While the fan curve was observed to change, it is interesting to note that the CPU wattage appears to stay the same after an unlock. Based on the data, pkg max temp is a bit low which does indicate the possible presence of a firmware level power limit. If you do find the time to test, may I ask if you have thermal and power data when running Windows? Initial observations that have resulted in the creation of this patch series were made with a power meter (can be a watt meter from the wall or a watt meter from a USB-C PD monitor). On the SR4, maximum on Linux was around 42W, while Windows had spikes that went up to ~60W (on the AC charger) or ~80W on a 100W USB-C PD charger. (in addition to the higher CPU temps with all settings on both Windows and Panasonic utilities set to performance) Application of this patch on Linux with TLP set to performance resulted in similar observations when testing. Additionally, may I ask if you have tested to see if thermald affects the fan or power setting? Running it once in my case with the defaults has resulted in power being unlocked until next reboot. This change can be observed with both turbostat and a watt meter when plugged in. The DMI quirk code is appreciated but I'd like to clarify the power unlock part first before including it.