<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][SHARDS] igt@kms_properties@connector-properties-atomic - fail - Test assertion failure function max_bpc_prop_test, Failed assertion: ret == 0" href="https://bugs.freedesktop.org/show_bug.cgi?id=108642#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][SHARDS] igt@kms_properties@connector-properties-atomic - fail - Test assertion failure function max_bpc_prop_test, Failed assertion: ret == 0" href="https://bugs.freedesktop.org/show_bug.cgi?id=108642">bug 108642</a> from <a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> Martin Peres</a> <pre>I assigned Radhakrishna directly because the regression was quite likely caused by this patch: author Radhakrishna Sripada <<a href="mailto:radhakrishna.sripada@intel.com">radhakrishna.sripada@intel.com</a>> 2018-10-12 11:42:32 -0700 committer Rodrigo Vivi <<a href="mailto:rodrigo.vivi@intel.com">rodrigo.vivi@intel.com</a>> 2018-11-02 09:15:58 -0700 commit 47e22ff1a9e0c144611bd063b3e6135f9a269503 drm: Add connector property to limit max bpc At times 12bpc HDMI cannot be driven due to faulty cables, dongles level shifters etc. To workaround them we may need to drive the output at a lower bpc. Currently the user space does not have a way to limit the bpc. The default bpc to be programmed is decided by the driver and is run against connector limitations. Creating a new connector property "max bpc" in order to limit the bpc. xrandr can make use of this connector property to make sure that bpc does not exceed the configured value. This property can be used by userspace to set the bpc. V2: Initialize max_bpc to satisfy kms_properties V3: Move the property to drm_connector V4: Split drm and i915 components(Ville) V5: Make the property per connector(Ville) V6: Compare the requested bpc to connector bpc(Daniel) Move the attach_property function to core(Ville) V7: Fix checkpatch warnings V8: Simplify the connector check code(Ville) V9: Const display_info(Ville) V10,V11: Fix CI issues. V12: Add the Kernel documentation(Daniel) V14: Crossreference the function name in the doc(Daniel) Cc: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>> Cc: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>> Cc: Kishore Kadiyala <<a href="mailto:kishore.kadiyala@intel.com">kishore.kadiyala@intel.com</a>> Cc: Rodrigo Vivi <<a href="mailto:rodrigo.vivi@intel.com">rodrigo.vivi@intel.com</a>> Cc: Manasi Navare <<a href="mailto:manasi.d.navare@intel.com">manasi.d.navare@intel.com</a>> Cc: Stanislav Lisovskiy <<a href="mailto:stanislav.lisovskiy@intel.com">stanislav.lisovskiy@intel.com</a>> Cc: Sunpeng Li <<a href="mailto:sunpeng.li@amd.com">sunpeng.li@amd.com</a>> Acked-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>> Signed-off-by: Radhakrishna Sripada <<a href="mailto:radhakrishna.sripada@intel.com">radhakrishna.sripada@intel.com</a>> Reviewed-by: Rodrigo Vivi <<a href="mailto:rodrigo.vivi@intel.com">rodrigo.vivi@intel.com</a>> Signed-off-by: Rodrigo Vivi <<a href="mailto:rodrigo.vivi@intel.com">rodrigo.vivi@intel.com</a>> Link: <a href="https://patchwork.freedesktop.org/patch/msgid/20181012184233.29250-1-radhakrishna.sripada@intel.com">https://patchwork.freedesktop.org/patch/msgid/20181012184233.29250-1-radhakrishna.sripada@intel.com</a> Link: <a href="https://cgit.freedesktop.org/drm-tip/commit/?id=f1a1217222a24775eaaafbcbd386101dc44f8a81">https://cgit.freedesktop.org/drm-tip/commit/?id=f1a1217222a24775eaaafbcbd386101dc44f8a81</a> PS: Thanks for being on fd.o, Radhakrishna!</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>