Created attachment 131543 [details] LD_DEBUG=libs xdriinfo with libglvnd installed Hi, with mesa-git master built against libglvnd , xdriinfo can't detect the dri-driver in use, glxinfo works fine . When the same mesa-git version is built with libglvnd explicitly disabled, xdriinfo works as expected. https://bugzilla.redhat.com/show_bug.cgi?id=1429894 appears to be about the same bug and concludes it's a mesa bug. That bug report also indicates Fedora Core has solved this by patching mesa though i can't find the patch they used.
Can you double-check that your build has the following commit c93f8f0cb3e8b655b0b39f2081bc5ad374abc79d. AFAICT it's the same one used by the Fedora folks, with a trivial cleanup.
Can't find a commit with that hash, or do you mean https://cgit.freedesktop.org/mesa/mesa/commit/?id=84f764a7591715104b28c035c837ce9fd86157ad glxglvnddispatch: Add missing dispatch for GetDriverConfig Together with some fixes to xdriinfo this fixes xdriinfo not working with glvnd. That commit is present in my build, looking for the fixes to xdriinfo now. https://cgit.freedesktop.org/xorg/app/xdriinfo/log/ shows 3 commits after last release, going to build xdriinfo from git.
xdriinfo build from git didn't change anything. I dug deeper, found that fedora core has put xdriinfo in their glx-utils package which is a sub pacakage of their mesa-demos package . downloaded the latest source-rpm from https://koji.fedoraproject.org/koji/buildinfo?buildID=868167 . after extracting the rpm i found xdriinfo-1.0.4-glvnd.patch (attached ). Applying that patch to xdriinfo from git solved the issue. Now to figure out how to continue and get that info to xdriinfo upstream.
Created attachment 131570 [details] [review] patch to give xdriinfo glvnd support created by hans de goede
(In reply to LoneVVolf from comment #3) > Now to figure out how to continue and get that info to xdriinfo upstream. I was waiting for someone on the mailinglist to review the patch, but since you've just independently verified that it fixes things I've gone ahead and pushed it. Which I believe means this bug is fixed now -> closing.
Thanks for the quick responses Emil & Hans. Searching on mailing lists i'm not subscribed to has always been tricky for me. After hans post I checked X mailing lists more throughly and found the patch proposal on xorg-devel ML (subscribed to it now) in the march archive.
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