<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna gen4] corrupt rendering (including wrong rendering of characters and flickering on redraw)" href="https://bugs.freedesktop.org/show_bug.cgi?id=55500#c141">Comment # 141</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna gen4] corrupt rendering (including wrong rendering of characters and flickering on redraw)" href="https://bugs.freedesktop.org/show_bug.cgi?id=55500">bug 55500</a> from <a class="email" href="mailto:h.judt@gmx.at" title="Harald Judt <h.judt@gmx.at>"> Harald Judt</a> <pre>(In reply to <a href="show_bug.cgi?id=55500#c134">comment #134</a>) > (In reply to <a href="show_bug.cgi?id=55500#c132">comment #132</a>) > > I don't want to speak too soon but it seems that the latest patch fixes the > > problem. > > Let it run for a day or so to be sure. The other thing that is worth > checking is whether setting MAX_FLUSH_VERTICES to 2 is also stable, or 4 > etc. Setting it to 1 has a major impact on performance (we are roughly an > order of magnitude slower at rendering than what can be expected). Setting max_flush_vertices to 1 fixes the problem here, with the mentioned noticeable performance loss. IIRC, hibernating/resuming can accelerate the appearance of the bug, but I'm not quite sure about this, it might also be coincidence. I will now try to decrease the value from the default one to find the sweet spot.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>