<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [CI] [BAT] [DRMTIP] igt@* - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun" href="https://bugs.freedesktop.org/show_bug.cgi?id=107724#c23">Comment # 23</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [CI] [BAT] [DRMTIP] igt@* - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun" href="https://bugs.freedesktop.org/show_bug.cgi?id=107724">bug 107724</a> from <a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> Martin Peres</a> <pre>Ville has been working on it, and he has patches addressing the issue: <a href="https://patchwork.freedesktop.org/series/58299/">https://patchwork.freedesktop.org/series/58299/</a> They are not landed because IGT does not cope well with the additional restrictions on plane size. The IGT test fixes are coming along, and we can expect to close this issue in the coming week or so. The customer impact of this issue is very high as this could lead to transient black screens / flickering, due to exceeding the memory bandwidth available to the display controller. To fix these issues for good, a test is being developed by Stan to stress-test watermark selection, which will hopefully allow us to iron out the final kinks and make FIFO underruns a thing of the past.</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>