The monitor shipped with the Framework 16 supports VRR [1], but it's not being advertised.
This is because the detailed timing block doesn't contain `EDID_DETAIL_MONITOR_RANGE` which amdgpu looks for to find min and max frequencies. This check however is superfluous for this case because update_display_info() calls drm_get_monitor_range() to get these ranges already. So if the `DRM_EDID_FEATURE_CONTINUOUS_FREQ` EDID feature is found then turn on freesync without extra checks. Closes: https://www.reddit.com/r/framework/comments/1b4y2i5/no_variable_refresh_rate_on_the_framework_16_on/ Closes: https://www.reddit.com/r/framework/comments/1b6vzcy/framework_16_variable_refresh_rate/ Closes: https://community.frame.work/t/resolved-no-vrr-freesync-with-amd-version/42338 Link: https://gist.github.com/superm1/e8fbacfa4d0f53150231d3a3e0a13faf [1] Signed-off-by: Mario Limonciello <mario.limoncie...@amd.com> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 5b7293da5453..38186d669a85 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -11238,9 +11238,12 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, bool edid_check_required = false; if (edid) { - edid_check_required = is_dp_capable_without_timing_msa( - adev->dm.dc, - amdgpu_dm_connector); + if (edid->features & DRM_EDID_FEATURE_CONTINUOUS_FREQ) + freesync_capable = true; + else + edid_check_required = is_dp_capable_without_timing_msa( + adev->dm.dc, + amdgpu_dm_connector); } if (edid_check_required == true && (edid->version > 1 || -- 2.34.1
