1 files changed, 11 insertions, 10 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 45bc750e9ae2..6317d2c9e6d9 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -313,7 +313,6 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
                                      uint16_t *line_mux,
                                      struct radeon_hpd *hpd)
 {
-        struct radeon_device *rdev = dev->dev_private;
 
         /* Asus M2A-VM HDMI board lists the DVI port as HDMI */
         if ((dev->pdev->device == 0x791e) &&
@@ -425,21 +424,23 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
                 }
         }
 
-        /* Acer laptop reports DVI-D as DVI-I and hpd pins reversed */
+        /* Acer laptop (Acer TravelMate 5730G) has an HDMI port
+         * on the laptop and a DVI port on the docking station and
+         * both share the same encoder, hpd pin, and ddc line.
+         * So while the bios table is technically correct,
+         * we drop the DVI port here since xrandr has no concept of
+         * encoders and will try and drive both connectors
+         * with different crtcs which isn't possible on the hardware
+         * side and leaves no crtcs for LVDS or VGA.
+         */
         if ((dev->pdev->device == 0x95c4) &&
             (dev->pdev->subsystem_vendor == 0x1025) &&
             (dev->pdev->subsystem_device == 0x013c)) {
-                struct radeon_gpio_rec gpio;
-
                 if ((*connector_type == DRM_MODE_CONNECTOR_DVII) &&
                     (supported_device == ATOM_DEVICE_DFP1_SUPPORT)) {
-                        gpio = radeon_lookup_gpio(rdev, 6);
-                        *hpd = radeon_atom_get_hpd_info_from_gpio(rdev, &gpio);
+                        /* actually it's a DVI-D port not DVI-I */
                         *connector_type = DRM_MODE_CONNECTOR_DVID;
-                } else if ((*connector_type == DRM_MODE_CONNECTOR_HDMIA) &&
-                           (supported_device == ATOM_DEVICE_DFP1_SUPPORT)) {
-                        gpio = radeon_lookup_gpio(rdev, 7);
-                        *hpd = radeon_atom_get_hpd_info_from_gpio(rdev, &gpio);
+                        return false;
                 }
         }