<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [IGT] [KBL] Missing 3180x2160_60Hz mode" href="https://bugs.freedesktop.org/show_bug.cgi?id=102928#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [IGT] [KBL] Missing 3180x2160_60Hz mode" href="https://bugs.freedesktop.org/show_bug.cgi?id=102928">bug 102928</a> from <a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> Ville Syrjala</a> <pre>[ 3.348528] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:58:DP-1] [ 3.348534] [drm:intel_dp_detect] [CONNECTOR:58:DP-1] [ 3.348831] [drm:lspcon_wake_native_aux_ch] Native AUX CH up, DPCD version: 1.2 [ 3.348847] [drm:lspcon_resume] LSPCON recovering in PCON mode after 0 ms It's our old friend LSPCON :( The 4:2:0 support for that is still WIP. You may want to try the patches here: <a href="https://patchwork.freedesktop.org/series/28536/">https://patchwork.freedesktop.org/series/28536/</a> Assuming you would apply them on top of drm-tip you should only need the last three. Not sure if the entire series would cleanly apply against 4.14-rc.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>