<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Assert in nouveau_pushbuf_data" href="https://bugs.freedesktop.org/show_bug.cgi?id=91632#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Assert in nouveau_pushbuf_data" href="https://bugs.freedesktop.org/show_bug.cgi?id=91632">bug 91632</a> from <a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> Ilia Mirkin</a> <pre>(In reply to Allan Sandfeld from <a href="show_bug.cgi?id=91632#c2">comment #2</a>) > The original qtwebengine bug is at > <a href="https://bugreports.qt.io/browse/QTBUG-41242">https://bugreports.qt.io/browse/QTBUG-41242</a> > > One interesting thing I discovered was that using the EGL/GLES mode instead > of GLX/GL solved the issue. I assume at your level it shouldn't be that > different. So it could be a difference in how EGL vs GLX acts. The issue was happening for me with Unigine Heaven run with DRI3 + DRI_PRIME=1. Then I started running it with vblank_mode=0 and all my problems disappeared. I haven't checked whether removing vblank_mode=0 would cause the issues to reappear. I was happy to blame it on the DRI3 boogeyman and moved on (I tend not to have a good grasp on these types of issues in the first place... normally I wouldn't touch DRI3 but it really makes nouveau dev quite a bit easier with a primary non-nvidia adapter since I can load/unload nouveau/nvidia at will and still have things display on my regular screen). Not sure how vsync would cause the problems, but I was getting actual shader traps reported in dmesg. Do you (or whoever is having the issue) have that as well?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>