From nobody Sat Feb 7 15:09:43 2026 Received: from mail-pf1-f172.google.com (mail-pf1-f172.google.com [209.85.210.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9C3263C17 for ; Sun, 25 Jan 2026 00:12:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769299937; cv=none; b=KqK5zd3TfN3KRE4i8aWIU7eOoqaSArpTW8p4LdsC2Ll9OmP5uH182VyTFzlV3TWBECM5YBcMjBDj+IQpjdVmfkQdG2yQYmNkFkqjapdoxpCaABqdeTmrId6ew3mTmImkK6dM2YIZEkYxK0nuJfXpTZMYIjNr6iXDwttK4v6typs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769299937; c=relaxed/simple; bh=NIp79broFaUbqbE9SnW7jm+f6+JXbFWMPOnMGOnZKNk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=VC0p06F3kreMJLJ+yw4I4N4/oFmHmY0om3f1drzQ97bbzHNaEVVyjVHKgK3F88O2WXxKc9kdjllkDSGa5mt5hOGes31idnrakx5Feuu/F8Rm0KgUfX0eLvrT4E8A4cJcVKRTkncUvWKyX39SAXhTxomtJZJLG6ZjVVnJx6V+9i4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=IHinVaay; arc=none smtp.client-ip=209.85.210.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IHinVaay" Received: by mail-pf1-f172.google.com with SMTP id d2e1a72fcca58-823075fed75so1782364b3a.1 for ; Sat, 24 Jan 2026 16:12:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769299936; x=1769904736; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=iR/kjqFsPEWOeJ8atT4KIIDdY2v61pRn+hE1X2EyFVo=; b=IHinVaay5hYhyRVoDHn4tfwR1cjm53vWg3rDlvS1x9ELBLuNOqJEFAJ2Ufh2i5lLrn 5DqQGY4Fmfbrca8vmKwash4Rr2GyWp/t8zxlvNRLk1Cmx9zGgk6HQuX3ppRgQ6/7gIDw JVkteUOrOw60GdoBoODLRYrZlxVaV2+Btd/XG39cjibmsHszEZ2+Jhw2biLejWahFTNd qaIRtqcIow5qZF5hIujqf/d5SqASZ3rklJOaXpBW1fUeyAt2i0Nr+oRf60ppf7pK01ri i8fyjeD1YmiWHxTd8je245VtaOC96jBLJ3RvHugVER/q9btmvIUzdeU03HIpl7dpY/b/ YZZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769299936; x=1769904736; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=iR/kjqFsPEWOeJ8atT4KIIDdY2v61pRn+hE1X2EyFVo=; b=AXHeG3WLNTzOZXbJc7oErFW5JboUNNU6Y1bLkaPFSWq2oPmchhWe3YGk8BYTyHKFU/ x1iTOlXEGMdtnRyWl3oQ3lKIo7+8UHqW+jbGjZScEe72dWhBrQkbH2b656OZV1md+evC rJy5mifNcKx79UCrgMT2EWqx9yWAeeLz5HW8jLtkPMGiSn8pZH7fnzekAimsuxuvVAp0 87FoPpSoX5gkjWcOqvqwp7L5UDSBGxw10HszhLdMoaorMlluoFIOATsz3aw7/0uW3blq MX154iqTjmz37t1j7kvzV+jC5NO7tMTjKj4zgkIytKmYRPERbVkq5X/P609osnGFr3Ch CPCg== X-Forwarded-Encrypted: i=1; AJvYcCXhVEfU+t0C7HEehd6R9bpNh/Fg54UucXa+G5zhQmpoTMeoZGyyqfSP/IoGTqXG6Vs2uIHy8RRamqSZU4Y=@vger.kernel.org X-Gm-Message-State: AOJu0YxQcNMMqSg1LqSYjMaiuFo9/z+0uKxsMowDs4+5a0pU3HS8NwEV bd6m67P9HaFdSqDB3OqfbS6NM+HRpJALFxzseLWUwImG1IEMUKoKVLE= X-Gm-Gg: AZuq6aJmokbIv0pdDiXIDvOw5sC7KKxau72dICB+5uzt/NBQ5y0FGTsIIhSTii7is/n 0FNRXGnaX1VdLuYxJyYonhNgIlIwSZ+1M7XNpHktdqSCNEUAxNKy6doaIxo8QIT93q8DW/Rrmh+ KHX7oaxT/bXcCcdmVa9LeZksXW3ge8Nsk/tiYDrDPbpZXZdmXjqvH059LNGPmujD8OybIbuNCIn MF3HO9lXYHW+6GImOnURHdpg1UdpnFndeOAI7ttB3PQgGDXsqZFB7qoC38GhG4ySmUFMcORbG7N Ofn9Gi3ZQeTS8TakLW9XCI6V1TOuvPhQ+tgjZ6M+7ope/kNd7R2Je6wN55HyypJZHpZ7s3Qxz6m ppx7YSwh6cWEVwlP5+6HHOhp+pcJSozvjZbIZxwKbcLMRDTrB5ouAOOsd8kFwtUuHAZErCtCgXK /I2GxvUpak30qW4mg= X-Received: by 2002:a05:6a00:7702:b0:7ab:2c18:34eb with SMTP id d2e1a72fcca58-823411db9d4mr224890b3a.12.1769299936136; Sat, 24 Jan 2026 16:12:16 -0800 (PST) Received: from at.. ([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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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 =C2=A9 2023 Intel Corporation */ =20 +#include #include =20 #include @@ -1657,6 +1658,7 @@ struct intel_display *intel_display_device_probe(stru= ct pci_dev *pdev, const struct platform_desc *desc; const struct subplatform_desc *subdesc; enum intel_step step; + const char *product_name =3D dmi_get_system_info(DMI_PRODUCT_NAME); =20 display =3D kzalloc(sizeof(*display), GFP_KERNEL); if (!display) @@ -1674,6 +1676,11 @@ struct intel_display *intel_display_device_probe(str= uct pci_dev *pdev, goto no_display; } =20 + 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 =3D find_platform_desc(pdev); if (!desc) { drm_dbg_kms(display->drm, --=20 2.43.0