<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Intel DRI3 causes extremely slow scrolling on certain pages with WebKitGTK+" href="https://bugs.freedesktop.org/show_bug.cgi?id=85064#c23">Comment # 23</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Intel DRI3 causes extremely slow scrolling on certain pages with WebKitGTK+" href="https://bugs.freedesktop.org/show_bug.cgi?id=85064">bug 85064</a> from <a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> Martin Peres</a> <pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=85064#c22">comment #22</a>) > (In reply to Martin Peres from <a href="show_bug.cgi?id=85064#c21">comment #21</a>) > > I tried using the modesetting driver and got absolute garbage out. Stale > > rendering, extreme slowness. Why didn't I think of this before... > > > > Anyway, will try to see if I can fix this issue. Seems like I will have a > > happy time in glamor and mesa's code tomorrow. > > Note that I couldn't reproduce this problem with xf86-video-ati using > glamor. I guess the problem could be in the Mesa driver, but the modesetting > driver seems more likely. Well, the problem is likely limited to Intel. We will likely need a patch like this one[1] until we get explicit fencing. [1] <a href="http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/commit/?id=fc984e8953d61901b255422c8f56eb79a2dd2a28">http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/commit/?id=fc984e8953d61901b255422c8f56eb79a2dd2a28</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>