Created attachment 573140 [details] Ebuild file that fix this issue I'm using VirtualGL with nvidia-drivers for accelerating 3D applications over VNC. When I run `VGL_DISPLAY=:1 vglrun glxspheres64`, it throws following error: Polygons in scene: 62464 (61 spheres * 1024 polys/spheres) libGL error: No matching fbConfigs or visuals found libGL error: failed to load driver: swrast Visual ID of window: 0xb6 X Error of failed request: GLXBadContext Major opcode of failed request: 151 (GLX) Minor opcode of failed request: 6 (X_GLXIsDirect) Serial number of failed request: 31 Current serial number in output stream: 30 For debugging, I just run `LD_DEBUG=all VGL_DISPLAY=:1 vglrun glxspheres64 2>&1 | grep libGL`, and I found that it always loads /usr/lib64/libGL.so.1 (which provided by Mesa package), not /usr/lib64/opengl/nvidia/lib/libGL.so.1 (which provided by nvidia-drivers package) despite of `eselect opengl show` indicates 'nvidia'. Because of running `ldd $(which glxspheres64)` just loads correct libGL.so.1, I suspects that it caused by vglrun script. I found that vglrun loads /usr/bin/.vglrun.vars64 (it sets VGL_LIBRARY_PATH using hard-coded VGL_LIBDIR), and use it for setting LD_LIBRARY_PATH. It's clear. The application loaded by vglrun script is always run with LD_LIBRARY_PATH=${VGL_LIBDIR}, currently set to /usr/lib64. It causes always loading /usr/lib64/libGL.so.1 before searching nvidia-drivers' one, and it does not work. I found that VGL_LIBDIR variable in /usr/bin/.vglrun.vars64 is adjustable by setting CMAKE_INSTALL_LIBDIR variable during src_configure phase. I just changed it from `/usr/$(get_libdir)` to `/usr/$(get_libdir)/VirtualGL` and re-emerge VirtualGL, then it works again. It separates VirtualGL DSOs from common libraries, then it prevents /usr/lib64/libGL.so.1 from unexpected loading. I'll attach ebuild file which I use. It contains possible fix for #675282 and #679710(these are just duplicates) - adding libXtst in dependency list.
Attached ebuild file contains fix for this issue, too. Sorry for incomplete description.
Adding candrews who did the 2.6.1 bump.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=5c8df2080a700ab49e52337e8ee4424178961d31 commit 5c8df2080a700ab49e52337e8ee4424178961d31 Author: Craig Andrews <candrews@gentoo.org> AuthorDate: 2019-05-01 20:12:42 +0000 Commit: Craig Andrews <candrews@gentoo.org> CommitDate: 2019-05-01 23:35:28 +0000 x11-misc/virtualgl: EAPI=7, install to /usr/lib/VirtualGL, add dep on libXtst Closes: https://bugs.gentoo.org/683656 Closes: https://bugs.gentoo.org/679710 Package-Manager: Portage-2.3.66, Repoman-2.3.12 Signed-off-by: Craig Andrews <candrews@gentoo.org> x11-misc/virtualgl/virtualgl-2.6.1-r1.ebuild | 95 ++++++++++++++++++++++++++++ x11-misc/virtualgl/virtualgl-9999.ebuild | 6 +- 2 files changed, 99 insertions(+), 2 deletions(-)
