From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74A16332EA3; Fri, 21 Nov 2025 13:52:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763733166; cv=none; b=j9+vm4HMOFHMJxBmFdOtZjbPNmDKgTroqlk0ch+6TKeDmjWiwxWhvJYDTPkSgL4LXFK3Yord8sMMk/y5noEvuzp0lXh9wjDp/OxFIMf2tbbtpbGxfR0UDZu0nNSwsz0yT8x8UHGpOT1xt5jH5nCL1GM4DXW2/V/p1Nje9PxnnvU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763733166; c=relaxed/simple; bh=TYaVbF2xC3nsnWw8qBi5WKMxIefdaix3UDCaiSR2fOU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=KOWxP0xbGl0F1bU0Y4NpjowwXiP08/SC0+h1p6MAHSopN2YYyZUHNjMmYnQ8GQ53cd5gxZUlRRWEpreX3r8N4xveV+Bst5gkK8VyfKnjbZhFZzwe0xEL9JI5si2ahIZHWPgvh8fjV1uVR9fhVBIPqaSc90EkHD81W3o98g+S/f0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=QpiebEnw; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="QpiebEnw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F2C8EC4CEF1; Fri, 21 Nov 2025 13:52:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1763733166; bh=TYaVbF2xC3nsnWw8qBi5WKMxIefdaix3UDCaiSR2fOU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QpiebEnwHgnwhYkVQZYc0a3ieZgzE0tozu0TXWWL5T5YqXu+TGc+KUXJE/Q2Ov4aJ C2y7BllpOPfbG8nMV07zOALpNCPTcO6f5WGbQrMpBFQe4R5UjPHXzHmfFdLKgbH9Ug NJYG82/BbfRfsysHqhZ9VMf2t5+xU8d09pwnFBoM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Timur=20Krist=C3=B3f?= , Harry Wentland , Alex Hung , Ray Wu , Daniel Wheeler , Alex Deucher Subject: [PATCH 6.6 374/529] drm/amd/display: Fix black screen with HDMI outputs Date: Fri, 21 Nov 2025 14:11:13 +0100 Message-ID: <20251121130244.334057832@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251121130230.985163914@linuxfoundation.org> References: <20251121130230.985163914@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Hung commit fdc93beeadc2439e5e85d056a8fe681dcced09da upstream. [Why & How] This fixes the black screen issue on certain APUs with HDMI, accompanied by the following messages: amdgpu 0000:c4:00.0: amdgpu: [drm] Failed to setup vendor info frame on connector DP-1: -22 amdgpu 0000:c4:00.0: [drm] Cannot find any crtc or sizes [drm] Cannot find any crtc or sizes Fixes: 489f0f600ce2 ("drm/amd/display: Fix DVI-D/HDMI adapters") Suggested-by: Timur Kristóf Reviewed-by: Harry Wentland Signed-off-by: Alex Hung Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher (cherry picked from commit 678c901443a6d2e909e3b51331a20f9d8f84ce82) Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/dc/link/link_detection.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c @@ -1114,6 +1114,7 @@ static bool detect_link_and_local_sink(s !sink->edid_caps.edid_hdmi) sink->sink_signal = SIGNAL_TYPE_DVI_SINGLE_LINK; else if (dc_is_dvi_signal(sink->sink_signal) && + dc_is_dvi_signal(link->connector_signal) && aud_support->hdmi_audio_native && sink->edid_caps.edid_hdmi) sink->sink_signal = SIGNAL_TYPE_HDMI_TYPE_A;