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 E4EFC1D6DB5; Tue, 11 Nov 2025 00:54:06 +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=1762822447; cv=none; b=FCnYtLFQAwrtprd0TsBwG5VWJa5RWmXqxPkej2JND+Lfjb77yQv6zHTjkFDFMr1KtAktOXXWUG4h/FV26pGiVRvZf84MpPxno90jM5y0B7aSkG+u6phggPSUiwRAoBa5QXz33wZ73wCsxnaXmLj+Ohi8Z4bkU54/M7NV3gvy1YU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762822447; c=relaxed/simple; bh=R1HZLa7ECdZav7R4Q6yIXuTsey886sRppXunLrrxJ/I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mW1Bjf/qCHRGB+G2pcNGGfih7wVcF/VtsvuB8yGXmUdnJHkN6kzskItt5o8cUeBkifJ5Uz8VE5Qi5XI2TsndhoDeZCT1MqRMVD61EpAUPWFwsVrIMkCTUBkE5didZeErwp1rOq7DP6y0AsLAFmX5saRSopFh9+1kmI7PTFHUQ80= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=qXG2Oqsn; 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="qXG2Oqsn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 805F3C16AAE; Tue, 11 Nov 2025 00:54:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1762822446; bh=R1HZLa7ECdZav7R4Q6yIXuTsey886sRppXunLrrxJ/I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qXG2OqsnCFrOrZPEL2xcbAGbbyprsU2AeeKtGQMdbWaDBz7t0TyS7PK4HUFaNPQ7z gElTKxjEacS8305/2HmvXPzu5+QdQqASCOXwQd8YX2LCsG2iKv6rra6y+9kSniljgZ jI8NHmvOacaOD8OR5YRXAq5JTT+jkg+dBhTrsln4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Aurabindo Pillai , Alex Hung , Wayne Lin , Dan Wheeler , Alex Deucher Subject: [PATCH 6.17 109/849] drm/amd/display: Add HDR workaround for a specific eDP Date: Tue, 11 Nov 2025 09:34:39 +0900 Message-ID: <20251111004539.030889026@linuxfoundation.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251111004536.460310036@linuxfoundation.org> References: <20251111004536.460310036@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-Transfer-Encoding: 8bit 6.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Hung commit 7d08c3b1731014dd1cfd0bf8b0cb1cef9dfd191e upstream. [WHY & HOW] Some eDP panels suffer from flicking when HDR is enabled in KDE or Gnome. This add another quirk to worksaround to skip VSC that is incompatible with an eDP panel. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/4452 Reviewed-by: Aurabindo Pillai Signed-off-by: Alex Hung Signed-off-by: Wayne Lin Tested-by: Dan Wheeler Signed-off-by: Alex Deucher (cherry picked from commit 99441824bec63549a076cd86631d138ec9a0c71c) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -82,6 +82,7 @@ static void apply_edid_quirks(struct drm edid_caps->panel_patch.remove_sink_ext_caps = true; break; case drm_edid_encode_panel_id('S', 'D', 'C', 0x4154): + case drm_edid_encode_panel_id('S', 'D', 'C', 0x4171): drm_dbg_driver(dev, "Disabling VSC on monitor with panel id %X\n", panel_id); edid_caps->panel_patch.disable_colorimetry = true; break;