From 73091e4fb78b5d88913593012ad74a1c0ff266da Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 28 Mar 2022 17:34:23 +0300 Subject: [PATCH] drm/edid: fix reduced blanking support check MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The reduced blanking bit is valid only for CVT, indicated by display range limits flags 0x04. Cc: Ville Syrjälä Signed-off-by: Jani Nikula Reviewed-by: Ville Syrjälä Reviewed-by: Emil Velikov Link: https://patchwork.freedesktop.org/patch/msgid/5dea5ee24065450716bbc177dd6850d3193dbeec.1648477901.git.jani.nikula@intel.com --- drivers/gpu/drm/drm_edid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 0e434ab7908c..aa4ba35b40cf 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -2408,7 +2408,7 @@ is_rb(struct detailed_timing *t, void *data) if (!is_display_descriptor(r, EDID_DETAIL_MONITOR_RANGE)) return; - if (r[15] & 0x10) + if (r[10] == DRM_EDID_CVT_SUPPORT_FLAG && r[15] & 0x10) *(bool *)data = true; }