https://bugs.freedesktop.org/show_bug.cgi?id=83226
--- Comment #31 from sweeneygj at gmx.com --- I have a DCE3 (RS880) and a monitor which supports RGB quantisation. before executing the EDID test the values are radeon_encoder->output_csc = RADEON_OUTPUT_CSC_BYPASS frame.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT then it executes the EDID test if (drm_rgb_quant_range_selectable(radeon_connector_edid(connector))) { if (radeon_encoder->output_csc == RADEON_OUTPUT_CSC_TVRGB) frame.quantization_range = HDMI_QUANTIZATION_RANGE_LIMITED; else frame.quantization_range = HDMI_QUANTIZATION_RANGE_FULL; } else { frame.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT; } and the monitor loses sync and displays a blank screen. Should the code test both the EDID and output_csc != BYPASS before attempting the range change? -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20150827/ddf4e3e5/attachment.html>