This is a note to let you know that I've just added the patch titled
drm/radeon: Extended DDC Probing for ECS A740GM-M DVI-D Connector
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-extended-ddc-probing-for-ecs-a740gm-m-dvi-d.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <sta...@kernel.org> know about it.
>From a81b31e9fc98e067b7e7f1244861c97e44268e2d Mon Sep 17 00:00:00 2001
From: Thomas Reim <rei...@gmail.com>
Date: Fri, 29 Jul 2011 14:29:00 +0000
Subject: drm/radeon: Extended DDC Probing for ECS A740GM-M DVI-D Connector
From: Thomas Reim <rei...@gmail.com>
commit a81b31e9fc98e067b7e7f1244861c97e44268e2d upstream.
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: Extended DDC Probing for Connectors
with Improperly Wired DDC Lines
Tested for kernel 2.6.38 on Asus ECS A740GM-M board
BugLink: http://bugs.launchpad.net/bugs/810926
Signed-off-by: Thomas Reim <rei...@gmail.com>
Reviewed-by: Alex Deucher <alexdeuc...@gmail.com>
Acked-by: Stephen Michaels <stephen.miche...@gmail.com>
Signed-off-by: Dave Airlie <airl...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@suse.de>
---
drivers/gpu/drm/radeon/radeon_connectors.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -455,6 +455,15 @@ static bool radeon_connector_needs_exten
(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;
Patches currently in stable-queue which might be from rei...@gmail.com are
queue-3.0/drm-radeon-extended-ddc-probing-for-ecs-a740gm-m-dvi-d.patch
queue-3.0/drm-separate-edid-header-check-from-edid-block-check.patch
queue-3.0/drm-radeon-log-subsystem-vendor-and-device-information.patch
queue-3.0/drm-radeon-extended-ddc-probing-for-connectors-with.patch
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