After some inactivity (~3 months), I ran emerge @world on my ia64 workstation. Hundreds of packages were upgraded/rebuilt leading to a broken GNOME desktop environment (more on this later). I don't know exactly how the various GNOME packages relate to each other, so it may be that the faulty package isn't gnome-shell itself. It's only because I think that both GDM and the GNOME desktop rely upon it that I've opened this BR against gnome-shell. Feel free to redirect if it proves to be wrong. Now the facts.
At the GDM login screen (attached gdm.jpg snapshot), when I click on my account, the GNOME Settings option and an edit text box (allowing me to enter my password) used to be displayed. Following emerge @world, as soon as I click on my account, GDM is restarted and I can't do much more. It's noteworthy that the calendar and accessibility options however work fine. Forcing GDM to use X11 (uncommenting WaylandEnable=false in /etc/gdm/custom.conf) didn't help, as Xorg is properly started anyway.
Starting a GNOME session from the command-line (startx) allowed me to see the GNOME desktop (attached gnome.jpg snapshot). But as can be seen in the snapshot, the dock, which is normally displayed on the left isn't there. Here again, the calendar is working properly. However, clicking on any of the settings (system, account) or Activities restarts the GNOME desktop. Clicking once again on any of those once the GNOME desktop is restarted shuts down the session. I'm the back to the shell prompt, without any further error message displayed.
Quite interestingly, emerge @world failed to upgrade gnome-shell and mutter to GNOME 3.26 because of bug #671538. I know for sure that =gnome-base/gnome-shell-3.24.3 was working fine during the GNOME 3.24 days.
From the evidences above, if you know which GNOME component may be faulty and reverted to give it a try, or which log file should I have a look at to get more information, please let me know as I'm in the dark here. And if you think that the GDM and desktop problems reported here are in fact two different issues, please let me know too, so that I can open separate BRs.
Created attachment 555760 [details]
Created attachment 555762 [details]
GNOME desktop snaphot
emerge --info output:
Portage 2.3.49 (python 3.6.5-final-0, default/linux/ia64/17.0/desktop/gnome/systemd, gcc-7.3.0, glibc-2.26-r7, 4.9.95-gentoo ia64)
System uname: Linux-4.9.95-gentoo-ia64-Madison-with-gentoo-2.4.1
KiB Mem: 24978336 total, 24673936 free
KiB Swap: 524272 total, 524272 free
Timestamp of repository gentoo: Thu, 25 Oct 2018 18:45:01 +0000
Head commit of repository gentoo: 1340cf0c06d0b471a45d586aae1b6800166dd502
sh bash 4.4_p12
ld GNU ld (Gentoo 2.30 p5) 2.30.0
dev-lang/python: 2.7.15::gentoo, 3.5.5::gentoo, 3.6.5::gentoo
sys-devel/autoconf: 2.13::gentoo, 2.69-r4::gentoo
sys-kernel/linux-headers: 4.13::gentoo (virtual/os-headers)
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git"
USE="X a52 aac acl acpi alsa berkdb branding bzip2 cairo cdda cdr cli colord crypt cups cxx dbus dri dts dvdr eds encode evo exif fam flac fortran gdbm gif glamor gnome gnome-keyring gnome-online-accounts gpm gstreamer gtk ia64 iconv introspection ipv6 jpeg lcms ldap libnotify libsecret libtirpc mad mng mp3 mp4 mpeg nautilus ncurses nls nptl ogg opengl openmp pam pango pcre pdf png policykit ppds pulseaudio readline sdl spell ssl startup-notification svg systemd tcpd tiff tracker truetype udev udisks unicode upower usb vorbis wxwidgets x264 xattr xcb xml xv xvid zlib" ALSA_CARDS="fm801" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon plan sheets stage words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev" KERNEL="linux" L10N="fr" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6 php7-1" POSTGRES_TARGETS="postgres9_5 postgres10" PYTHON_SINGLE_TARGET="python3_6" PYTHON_TARGETS="python2_7 python3_6" RUBY_TARGETS="ruby23" USERLAND="GNU" VIDEO_CARDS="fbdev radeon" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Do you have any coredumps in coredumpctl or anything interesting in journalctl?
The attached photos themselves seem fine to me - there is no left dock shown unless you are in activities overview, which you don't appear to be in.
mutter and gnome-shell need to be in sync (both 3.24 or both 3.26), other than that - I don't recall any big interdependencies.
gdm itself doesn't do any drawing really, you are seeing gnome-shell in its login UI there as well.
(In reply to Mart Raudsepp from comment #4)
> Do you have any coredumps in coredumpctl or anything interesting in
> The attached photos themselves seem fine to me - there is no left dock shown
> unless you are in activities overview, which you don't appear to be in.
> mutter and gnome-shell need to be in sync (both 3.24 or both 3.26), other
> than that - I don't recall any big interdependencies.
> gdm itself doesn't do any drawing really, you are seeing gnome-shell in its
> login UI there as well.
Well, I wish I could. My Gentoo HDD crashed hard and I had to reinstall everything from scratch. But now, I can't emerge GNOME 3.24 because of bug #671538, so can't even start a GNOME session right now.
That being said, I always had the dock displayed on my GNOME desktop previously, not only when in activities overview.