<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Sep 1, 2020, 23:28 Julien Isorce <<a href="mailto:julien.isorce@gmail.com">julien.isorce@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi,<div><br></div><div>Try: DRI_PRIME=1 LIBVA_DRIVER_NAME=nouveau vainfo <span style="color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px">--display drm --device /dev/dri/renderD129</span></div><div><span style="color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px"><br></span></div><div><span style="color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px">Also try with and without the --device option, the important one is --display drm</span></div><div><span style="color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px"></span></div></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">Nada, and nada. Exact same error as before, both cases. </div><div dir="auto"><br></div><div dir="auto">waah! </div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><span style="color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px"><br></span></div><div><span style="color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px">Cheers</span></div><div><span style="color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px">Julien</span></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Sep 1, 2020 at 10:49 AM Analabha Roy <<a href="mailto:hariseldon99@gmail.com" target="_blank" rel="noreferrer">hariseldon99@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 1 Sep 2020 at 18:59, Ilia Mirkin <<a href="mailto:imirkin@alum.mit.edu" target="_blank" rel="noreferrer">imirkin@alum.mit.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Tue, Sep 1, 2020 at 9:10 AM Analabha Roy <<a href="mailto:hariseldon99@gmail.com" target="_blank" rel="noreferrer">hariseldon99@gmail.com</a>> wrote:<br> > Any suggestions on how to trace the config issues? Do I have to debug the va_openDriver() function?<br> <br> My guess, without reading any code, is that DRI_PRIME isn't doing what<br> you want it to, and the nouveau driver is being handed an intel<br> device. This does not work well. Fixing this will require tracing<br> through the va winsys code which to figure out how it invokes the<br> loader.<br> <br> <a href="https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/frontends/va/context.c#n111" rel="noreferrer noreferrer" target="_blank">https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/frontends/va/context.c#n111</a><br> <br> For the DRM/rendernodes "platform", it will just take whatever fd it<br> is given. vainfo appears to give it a fixed device:<br> <br> <a href="https://github.com/intel/libva-utils/blob/master/common/va_display_drm.c#L39" rel="noreferrer noreferrer" target="_blank">https://github.com/intel/libva-utils/blob/master/common/va_display_drm.c#L39</a><br> <br> However it looks like you can pass in --device /dev/dri/renderD129 or<br> whatever the right one is, which should pass in the right render node,<br> as seen here:<br> <br> <a href="https://github.com/intel/libva-utils/blob/master/common/va_display.c#L80" rel="noreferrer noreferrer" target="_blank">https://github.com/intel/libva-utils/blob/master/common/va_display.c#L80</a><br> <br> Note that I've never tried this, just did a few google searches to<br> find this stuff.<br> <br></blockquote><div><br></div><div>Brilliant googling. get_drm_device_name() does seem to do a crude argparse of "--device"</div><div><br></div><div>So I ran</div><div><br></div><div>$ DRI_PRIME=1 LIBVA_DRIVER_NAME=nouveau vainfo --device /dev/dri/renderD128<br><b><u>vainfo: unrecognized option '--device'<br></u></b>Show information from VA-API driver<br>Usage: vainfo --help<br> --help print this message<br><br>Usage: vainfo [options]<br>Display options:<br> --display display | help Show information for the specified display, or the available display list <br><b><u> --device device Set device name, only available under drm display<br></u></b></div><div><br></div><div><br></div><div>What does this mean?</div><div><br></div><div> Note that I also ran</div><div><br></div><div><br></div><div>$ nm -Dn -o /usr/lib/x86_64-linux-gnu/libva*|grep get_drm_device_name</div><div><br></div><div>Didn't get anything...</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> Cheers,<br> <br> -ilia<br> </blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div>Analabha Roy<br></div><div>Assistant Professor</div><div><a href="http://www.buruniv.ac.in/academics/department/physics" target="_blank" rel="noreferrer">Department of Physics</a></div><div><a href="http://www.buruniv.ac.in/" target="_blank" rel="noreferrer">The University of Burdwan</a></div><div>Golapbag Campus, Barddhaman 713104</div><div>West Bengal, India</div><div>Emails: <a href="mailto:daneel@utexas.edu" target="_blank" rel="noreferrer">daneel@utexas.edu</a>, <a href="mailto:aroy@phys.buruniv.ac.in" target="_blank" rel="noreferrer">aroy@phys.buruniv.ac.in</a>, <a href="mailto:hariseldon99@gmail.com" target="_blank" rel="noreferrer">hariseldon99@gmail.com</a><br><div><font face="tahoma, sans-serif">Webpage: <a href="http://www.ph.utexas.edu/~daneel/" target="_blank" rel="noreferrer">http://www.ph.utexas.edu/~daneel/</a></font></div></div></div></div></div></div></div> _______________________________________________<br> Nouveau mailing list<br> <a href="mailto:Nouveau@lists.freedesktop.org" target="_blank" rel="noreferrer">Nouveau@lists.freedesktop.org</a><br> <a href="https://lists.freedesktop.org/mailman/listinfo/nouveau" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/nouveau</a><br> </blockquote></div> </blockquote></div></div></div>