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Thu, 04 Dec 2025 20:01:57 -0800 (PST) From: Askar Safin To: superm1@kernel.org Cc: Dell.Client.Kernel@dell.com, andriy.shevchenko@linux.intel.com, bartosz.golaszewski@linaro.org, benjamin.tissoires@redhat.com, dmitry.torokhov@gmail.com, linux-acpi@vger.kernel.org, linux-gpio@vger.kernel.org, linux-i2c@vger.kernel.org, regressions@lists.linux.dev, rrangel@chromium.org, wse@tuxedocomputers.com Subject: Re: [REGRESSION][BISECTED] Dell Precision 7780 wakes up on its own from suspend Date: Fri, 5 Dec 2025 07:01:41 +0300 Message-ID: <20251205040141.1735580-1-safinaskar@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit "Mario Limonciello (AMD) (kernel.org)" : > Random thought - is this happening specifically when the lid is closed > and you're applying "pressure" to cause the touchpad to click with the > lid closed? No. I already sent script, which calls rtcwake in a loop. This script reproduces the bug. I don't touch anything when it is running. > If that's not it, I would check if you have the latest firmware for the > touchpad. Unfortunately this isn't something "commonly" flashable with > Linux like is the case with BIOS and other components. I already downloaded "touchpad firmware update utility" and did run it within Windows. So, yes, I have latest firmware. > Maybe @DellClientKernel could provide some guidance. Dell.Client.Kernel@dell.com was in CC all this time. Also, I contacted support via web chat (and said my service tag, of course). (My laptop comes with Ubuntu preinstalled.) They said I have basic support only, so they will not look into the issue too deeply. We had lengthy chat, and in some moment they said that they will not debug OS-related issues. I. e. if I want help with this bug, I should reproduce it without OS, i. e. in BIOS setup utility. Of course, this is not possible, because one cannot suspend BIOS setup utility. I sent them link to this thread and said that the bug is probably in firmware. But they seem to ignore this. Also, they said I can send the laptop to them, they will try to fix it and send it back. I don't want this. > But yes; failing all that it's viable to make a quirk. You can follow > any of the ones I've submitted for modeling how to do it. Here's the > most recent one I've done. > > https://github.com/torvalds/linux/commit/23800ad1265f10c2bc6f42154ce4d20e59f2900e Thank you! I will write something like this: + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_FAMILY, "Precision"), + }, + .driver_data = &(struct acpi_gpiolib_dmi_quirk) { + .ignore_wake = "VEN_0488:00@355", + }, I will test it and then properly send (hopefully today or tomorrow). -- Askar Safin