I believe my unreliable launching of GNOME is unrelated. For me, /var/log/messages shows output like
Mar 21 11:53:31 localhost vmunix: [ 86.999947] .gnome-session-[442]: segfault at 0 ip 00007f7b3141fce9 sp 00007ffd69b89560 error 4 in libgtk-3.so.0.2200.6[7f7b3114a000+6ed000] after a crash which I will investigate further with debug output for gnome-session at a later time. On Sun, 2017-03-19 at 17:02 +0100, Ludovic Courtès wrote: > "pelzflorian (Florian Pelz)" <pelzflor...@pelzflorian.de> skribis: > > > Does > > > > guix package -i xf86-video-intel > > > > or > > > > guix package -i xf86-video-nouveau > > > > help (or whatever else your GPU is from `guix package -s xf86-video-`)? > > Xorg wouldn’t pick up video drivers installed in the user’s profile, so > this shouldn’t make any difference AIUI. (See ‘xorg-configuration-file’ > in (gnu services xorg).) > Ah, I did not know. Good to know. Now my manifest is shorter. ;)