<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [bdw edp] Screen Flickering" href="https://bugs.freedesktop.org/show_bug.cgi?id=91393#c48">Comment # 48</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [bdw edp] Screen Flickering" href="https://bugs.freedesktop.org/show_bug.cgi?id=91393">bug 91393</a> from <a class="email" href="mailto:mika.kahola@intel.com" title="Mika Kahola <mika.kahola@intel.com>"> Mika Kahola</a> <pre>Created <a href="attachment.cgi?id=120389" name="attach_120389" title="Check if DP training set applied ok">attachment 120389</a> <a href="attachment.cgi?id=120389&action=edit" title="Check if DP training set applied ok">[details]</a> <a href='page.cgi?id=splinter.html&bug=91393&attachment=120389'>[review]</a> Check if DP training set applied ok Tom reported that flickering occurs when resuming back from the sleep. When resuming we are already trained the DP link and most probably reusing the DP link parameters when retraining the link. It may be possible that setting the DP training pattern fails yielding an error message of "*ERROR* failed to enable link training". This patch introduces a check to the routine that applies the DP training pattern. If this check fails, the link training is restarted by setting the parameters to zero. The patch applies on top of the latest drm-intel-nightly and requires this <a href="https://patchwork.freedesktop.org/patch/66697/">https://patchwork.freedesktop.org/patch/66697/</a> patch to be applied</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> </ul> </body> </html>