From mboxrd@z Thu Jan 1 00:00:00 1970 From: reimth@googlemail.com Subject: [PATCH] drm/radeon: Fix ECS A740GM-M DVI-D EDID error flooding problem Date: Wed, 20 Jul 2011 10:34:05 +0200 Message-ID: <1311150845-19198-1-git-send-email-reimth@gmail.com> References: <1309995012-5873-1-git-send-email-reimth@gmail.com> Return-path: In-Reply-To: <1309995012-5873-1-git-send-email-reimth@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Dave Airlie , Alex Deucher , Mario Kleiner , Jean Delvare , Tyson Whitehead Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Thomas Reim List-Id: dri-devel@lists.freedesktop.org From: Thomas Reim ECS A740GM-M with ATI RADEON 2100 sends data to i2c bus for a DVI connector that is not implemented/existent on the board. Fix by applying extented DDC probing for this connector. Requires [PATCH] drm/radeon: Fix Asus M2A-VM HDMI EDID error flooding problem BugLink: http://bugs.launchpad.net/bugs/810926 Signed-off-by: Thomas Reim --- drivers/gpu/drm/radeon/radeon_connectors.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 2e70be2..82dacc6 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -449,6 +449,15 @@ static bool radeon_connector_needs_extended_probe(struct radeon_device *dev, (supported_device == ATOM_DEVICE_DFP2_SUPPORT)) return true; } + /* ECS A740GM-M with ATI RADEON 2100 sends data to i2c bus + * for a DVI connector that is not implemented */ + if ((dev->pdev->device == 0x796e) && + (dev->pdev->subsystem_vendor == 0x1019) && + (dev->pdev->subsystem_device == 0x2615)) { + if ((connector_type == DRM_MODE_CONNECTOR_DVID) && + (supported_device == ATOM_DEVICE_DFP2_SUPPORT)) + return true; + } /* Default: no EDID header probe required for DDC probing */ return false; -- 1.7.1