<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - FIFO underrun, visual glitches and instability with dual monitors" href="https://bugs.freedesktop.org/show_bug.cgi?id=109376#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - FIFO underrun, visual glitches and instability with dual monitors" href="https://bugs.freedesktop.org/show_bug.cgi?id=109376">bug 109376</a> from <a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> Lakshmi</a> <pre>(In reply to Ville Syrjala from <a href="show_bug.cgi?id=109376#c7">comment #7</a>) > We seem to have fixed the original issue so I'm tempted to just close this > bug. > > However it might be interesting to know whether 4.19 and 4.20 are also > affected. 4.18 is a lost cause since it's no longer maintained, but we might > want to backport some of the fixes to 4.19 and 4.20. Can you test with > 4.19/4.20? > > In relation to <a class="bz_bug_link bz_status_CLOSED bz_closed" title="CLOSED FIXED - [WHL] FIFO underruns on a hybrid machine but only while on "performance" (dGPU) mode" href="show_bug.cgi?id=109248">bug 109248</a> Canonical identified commit ff43bc379e16 > ("drm/i915: Move ddb/wm programming into plane update/disable hooks on > skl+") as fixing their flickering screen problems. We might be after the > same thing here. Ville, We have results from Kernel 4.20 and issue is reproducible. But we do not have results yet from 4.19. Should we wait for 4.19 results before we close this bug?</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> <li>You are the assignee for the bug.</li> </ul> </body> </html>