Hi Ville, I have implemented the code that we discussed where if the link training fails, it would validate the modes on the new constraints and call an atomic helper like drm_atomic_helper_connector_modeset() to redo a modeset for the same mode. The two patches for this implemnetation is are: http://paste.ubuntu.com/23357104/ http://paste.ubuntu.com/23357105/ With this I can successfully trigger the modeset and retrain the link at lower link rate. But I am getting a warning during intel_audio_codec_enable() in intel_enable_ddi() during the commit phase on SKL. Following is the dmesg log: http://paste.ubuntu.com/23357075/ After further looking at it, I see that this calls drm_select_eld() function that throws a warning if the mode_config mutex and modeset locks are held. If I remove those WARN_ONs from there, I can get rid of this warning and everything works smoothly. Do you know if those WARN_ONs are required because these locks would be grabbed when we are in modeset. Regards Manasi _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
