<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - Rendering sometimes halts in waiting for back buffers with dri3 & xwayland" href="https://bugs.freedesktop.org/show_bug.cgi?id=81139#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - Rendering sometimes halts in waiting for back buffers with dri3 & xwayland" href="https://bugs.freedesktop.org/show_bug.cgi?id=81139">bug 81139</a> from <a class="email" href="mailto:stu_dby@126.com" title="Boyan Ding <stu_dby@126.com>"> Boyan Ding</a> <pre>I think it's not about xcb bug. I turned on DebugPresent output and that's what I get when running glxgears: q 1 0x2bf5a30 351258: 00400006 -> 00400002 (crtc (nil)) e 1 ust 5854416007 msc 351258 c 0x2bf5a30 351258: 00400006 -> 00400002 i 00400006 d 1 0x2bf5a30 351258: 00400006 -> 00400002 q 2 0x35e42a0 111514530873345: 00400006 -> 00400002 (crtc (nil)) e 2 ust 5854416646 msc 351258 c 0x35e42a0 351258: 00400006 -> 00400002 i 00400006 d 2 0x35e42a0 111514530873345: 00400006 -> 00400002 q 3 0x35e42a0 111514530873346: 00400006 -> 00400002 (crtc (nil)) e 3 ust 5854417065 msc 351258 c 0x35e42a0 351258: 00400006 -> 00400002 i 00400006 d 3 0x35e42a0 111514530873346: 00400006 -> 00400002 q 4 0x35e42a0 463856467970: 00400006 -> 00400002 (crtc (nil)) (both the output and the animation stop here) That means the event waited for is even not sent.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>