<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [nouveau] garbled rendering with glamor on G71" href="https://bugs.freedesktop.org/show_bug.cgi?id=99400#c21">Comment # 21</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [nouveau] garbled rendering with glamor on G71" href="https://bugs.freedesktop.org/show_bug.cgi?id=99400">bug 99400</a> from <a class="email" href="mailto:fourdan@xfce.org" title="Olivier Fourdan <fourdan@xfce.org>"> Olivier Fourdan</a> <pre>(In reply to Olivier Fourdan from <a href="show_bug.cgi?id=99400#c20">comment #20</a>) > > I cannot load the file on nouveau where it was captured, it says > > | 2 @0 eglGetPlatformDisplayEXT(platform = EGL_PLATFORM_GBM_KHR, > native_display = 0x26926b0, attrib_list = {}) = 0x26d8250 > | 2: warning: unsupported eglGetPlatformDisplayEXT call > error: failed to create OpenGL 3.1 context. Quick follow up on this, this is because of the way glamor works, it first creates an EGL context with some config attributes (which include the OpenGL version 3.1) and if it fails, it retries with no config attributes: <a href="https://cgit.freedesktop.org/xorg/xserver/tree/glamor/glamor_egl.c#n819">https://cgit.freedesktop.org/xorg/xserver/tree/glamor/glamor_egl.c#n819</a> or for Xwayland: <a href="https://cgit.freedesktop.org/xorg/xserver/tree/hw/xwayland/xwayland-glamor.c#n310">https://cgit.freedesktop.org/xorg/xserver/tree/hw/xwayland/xwayland-glamor.c#n310</a> So back to apitrace, as the config attributes specifies OpenGL 3.1, it fails and apitrace just stops there. So I changed Xwayland to not do the first call (which on this HW returns NULL anyway) and now apitrace is a happy buddy, I can replay the trace on nouveau as well. Same links, updated files: <a href="https://people.freedesktop.org/~ofourdan/bug99400/Xwayland.log">https://people.freedesktop.org/~ofourdan/bug99400/Xwayland.log</a> <a href="https://people.freedesktop.org/~ofourdan/bug99400/Xwayland.trace">https://people.freedesktop.org/~ofourdan/bug99400/Xwayland.trace</a> > For example frame 8932 (toward the end) is interesting imho, [...] Let's forget about this, now that the new trace can replay on both intel and nouveau. The problem I see is rather that I see no problem in apitrace, the frames look fine, AFAICT. And yet the rendering was wrong on screen when I captured the trace...</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>