From 64c3b233b38af0817c70d142c65b915ca1fbc71a Mon Sep 17 00:00:00 2001 From: Matthias Reichl Date: Thu, 30 Dec 2021 15:12:19 +0100 Subject: [PATCH] drm/vc4: hdmi: Fix no video output on DVI monitors The drm edid parser doesn't signal RGB support on DVI monitors with old edid versions, leading to 8-bit RGB mode being rejected and no video on DVI monitors. As 8-bit RGB is mandatory on HDMI and DVI monitors anyways we can simply drop the RGB format check, aligning vc4 with other drivers. Signed-off-by: Matthias Reichl --- drivers/gpu/drm/vc4/vc4_hdmi.c | 3 --- 1 file changed, 3 deletions(-) --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -1416,9 +1416,6 @@ vc4_hdmi_sink_supports_format_bpc(const case VC4_HDMI_OUTPUT_RGB: drm_dbg(dev, "RGB Format, checking the constraints.\n"); - if (!(info->color_formats & DRM_COLOR_FORMAT_RGB444)) - return false; - if (bpc == 10 && !(info->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30)) { drm_dbg(dev, "10 BPC but sink doesn't support Deep Color 30.\n"); return false;