drm/radeon/kms: add quirk for Acer laptop

DVI-I port is actually DVI-D

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index cd07c0e9122c..74bc8dfcb2a2 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -172,6 +172,15 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
                 }
         }
 
+        /* Acer laptop reports DVI-D as DVI-I */
+        if ((dev->pdev->device == 0x95c4) &&
+            (dev->pdev->subsystem_vendor == 0x1025) &&
+            (dev->pdev->subsystem_device == 0x013c)) {
+                if ((*connector_type == DRM_MODE_CONNECTOR_DVII) &&
+                    (supported_device == ATOM_DEVICE_DFP1_SUPPORT))
+                        *connector_type = DRM_MODE_CONNECTOR_DVID;
+        }
+
         return true;
 }