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([171.61.161.234]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-8231876e5d0sm5608273b3a.61.2026.01.24.16.12.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Jan 2026 16:12:15 -0800 (PST) From: Atharva Tiwari To: Cc: Atharva Tiwari , Jani Nikula , Rodrigo Vivi , Joonas Lahtinen , Tvrtko Ursulin , David Airlie , Simona Vetter , intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] drm/i915/display: Disable display for iMac's Date: Sun, 25 Jan 2026 00:11:01 +0000 Message-ID: <20260125001111.1269-3-atharvatiwarilinuxdev@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260125001111.1269-1-atharvatiwarilinuxdev@gmail.com> References: <20260125001111.1269-1-atharvatiwarilinuxdev@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Sun, 25 Jan 2026 13:48:52 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Disable display on iMacs, as they can't do link training on the internal display. (tested on iMac20,1) Signed-off-by: Atharva Tiwari --- drivers/gpu/drm/i915/display/intel_display_device.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c index 1170afaa8680..3fb47232e7a4 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.c +++ b/drivers/gpu/drm/i915/display/intel_display_device.c @@ -3,6 +3,7 @@ * Copyright © 2023 Intel Corporation */ +#include #include #include @@ -1657,6 +1658,7 @@ struct intel_display *intel_display_device_probe(struct pci_dev *pdev, const struct platform_desc *desc; const struct subplatform_desc *subdesc; enum intel_step step; + const char *product_name = dmi_get_system_info(DMI_PRODUCT_NAME); display = kzalloc(sizeof(*display), GFP_KERNEL); if (!display) @@ -1674,6 +1676,11 @@ struct intel_display *intel_display_device_probe(struct pci_dev *pdev, goto no_display; } + if (dmi_match(DMI_BOARD_VENDOR, "Apple Inc.") && !strncmp(product_name, "iMac", 4)) { + drm_dbg_kms(display->drm, "iMac Detected, Disabling display\n"); + goto no_display; + } + desc = find_platform_desc(pdev); if (!desc) { drm_dbg_kms(display->drm, -- 2.43.0