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-rw-r--r--sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 00d5f224491..ff0e1acff96 100644
--- a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10790,14 +10790,23 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
if (range->flags != 1)
continue;
- amdgpu_dm_connector->min_vfreq = range->min_vfreq;
- amdgpu_dm_connector->max_vfreq = range->max_vfreq;
- amdgpu_dm_connector->pixel_clock_mhz =
- range->pixel_clock_mhz * 10;
-
connector->display_info.monitor_range.min_vfreq = range->min_vfreq;
connector->display_info.monitor_range.max_vfreq = range->max_vfreq;
+ if (edid->revision >= 4) {
+ if (data->pad2 & DRM_EDID_RANGE_OFFSET_MIN_VFREQ)
+ connector->display_info.monitor_range.min_vfreq += 255;
+ if (data->pad2 & DRM_EDID_RANGE_OFFSET_MAX_VFREQ)
+ connector->display_info.monitor_range.max_vfreq += 255;
+ }
+
+ amdgpu_dm_connector->min_vfreq =
+ connector->display_info.monitor_range.min_vfreq;
+ amdgpu_dm_connector->max_vfreq =
+ connector->display_info.monitor_range.max_vfreq;
+ amdgpu_dm_connector->pixel_clock_mhz =
+ range->pixel_clock_mhz * 10;
+
break;
}