Am 14.01.2015 um 02:21 schrieb walt: > Here are some hints for ~amd64 users who are about to have trouble with > gnome3-session failing to start: > > After updating today to mesa-10.4.2 and xorg-server-1.16.3-r1, gnome3 > failed to start, complaining that 3d acceleration was not available. > > This was true, unfortunately, and the reason is that xorg-server is > looking for the nvidia glx module in the wrong directory, i.e. > /usr/lib64/xorg/modules/extensions/libglx.so. > > The correct path is /usr/lib64/opengl/nvidia/extensions/libglx.so. > > Normally, 'eselect opengl' sets this path correctly, but not today, > apparently. > > I finally worked around this problem by creating an appropriate > symlink to the nvidia libglx.so file in the correct location. > > Another recent problem is that xorg-server is honoring *only* the > first path listed in /etc/X11/xorg.conf.d/20opengl, and fails if > the appropriate file isn't there: > > i.e. it looks in /usr/lib32/ as the first default path (even on a > 64-bit machine) and fails to look in /usr/lib64/ even though that > path is correctly included in the list of places to look. > > I think the devs are already aware of these bugs and are working > on the problem. (Obviously not fixed yet :) > > > BTW, some good news: mesa-10.4.2 fixes a problem with running > gnome3 as virtualbox guest: The software rasterizer in the new > mesa is now fast enough to satisfy /usr/libexec/gnome-session- > check-accelerated, so gnome-session no longer craps out when > starting in virtualbox :)
It's a known bug in eselect-opengl: https://bugs.gentoo.org/show_bug.cgi?id=534128 https://bugs.gentoo.org/show_bug.cgi?id=536266
