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path: root/drivers/gpu/drm/radeon/radeon_display.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_display.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 6a92f994cc2..7e17a362b54 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -278,7 +278,7 @@ static void radeon_print_display_setup(struct drm_device *dev)
DRM_INFO(" %s\n", connector_names[connector->connector_type]);
if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
DRM_INFO(" %s\n", hpd_names[radeon_connector->hpd.hpd]);
- if (radeon_connector->ddc_bus)
+ if (radeon_connector->ddc_bus) {
DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
radeon_connector->ddc_bus->rec.mask_clk_reg,
radeon_connector->ddc_bus->rec.mask_data_reg,
@@ -288,6 +288,15 @@ static void radeon_print_display_setup(struct drm_device *dev)
radeon_connector->ddc_bus->rec.en_data_reg,
radeon_connector->ddc_bus->rec.y_clk_reg,
radeon_connector->ddc_bus->rec.y_data_reg);
+ } else {
+ if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
+ connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
+ connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
+ connector->connector_type == DRM_MODE_CONNECTOR_DVIA ||
+ connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
+ connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)
+ DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
+ }
DRM_INFO(" Encoders:\n");
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
radeon_encoder = to_radeon_encoder(encoder);