<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CI] igt@* - dmesg-warn - *ERROR* dp aux hw did not signal timeout!" href="https://bugs.freedesktop.org/show_bug.cgi?id=105128#c18">Comment # 18</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CI] igt@* - dmesg-warn - *ERROR* dp aux hw did not signal timeout!" href="https://bugs.freedesktop.org/show_bug.cgi?id=105128">bug 105128</a> from <a class="email" href="mailto:matthew.d.roper@intel.com" title="Matt Roper <matthew.d.roper@intel.com>"> Matt Roper</a> <pre>After more investigation, it appears that the frequent TGL failures happen after the platform enters DC6. Since the AUX B and AUX C power domains are in PG1 on TGL rather than PG3 as they were on ICL, I believe we need to add these to the "DC off" list so that the DMC firmware won't turn them off behind our back when entering DC states. I've sent a series with a change that I hope will make these failures go away (plus some other AUX fixes and cleanups) here: <a href="https://patchwork.freedesktop.org/series/68590/">https://patchwork.freedesktop.org/series/68590/</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>