From 5e3daaca09f5158eff9c92290faa1d2001ecc6e4 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 28 May 2015 09:38:45 +0200 Subject: [PATCH] drm/i915: Disable 12bpc hdmi for now MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit It's totally broken, and since commit d328c9d78d64ca11e744fe227096990430a88477 Author: Daniel Vetter Date: Fri Apr 10 16:22:37 2015 +0200 drm/i915: Select starting pipe bpp irrespective or the primary plane the kernel will try to use it even for the common rgb888 framebuffers. Ville has patches to fix it all up properly, but unfortunately they're stuck in review limbo. And since the 4.2 feature cutoff has passed we need to somehow handle this regression. Cc: Ville Syrjälä Cc: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_hdmi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 4117092ab2e3..e97731aab6dc 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1036,7 +1036,8 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, */ if (pipe_config->pipe_bpp > 8*3 && pipe_config->has_hdmi_sink && clock_12bpc <= portclock_limit && - hdmi_12bpc_possible(pipe_config)) { + hdmi_12bpc_possible(pipe_config) && + 0 /* FIXME 12bpc support totally broken */) { DRM_DEBUG_KMS("picking bpc to 12 for HDMI output\n"); desired_bpp = 12*3; -- 2.11.0