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Bug#969106: gdm3 can only start a gnome session, any other (e.g. mate, icewm, gnome on xorg...) fails

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Giacomo Mulas

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Aug 27, 2020, 2:30:03 PM8/27/20
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Package: gdm3
Version: 3.36.2-1
Severity: important

Dear Maintainer,

I don't know exactly with which version of gdm3 this occurred,
but with the current one I am forced to choose "GNOME" as a session
when logging in with the login manager. Any other choice just
results in getting back to the login manager. And by "any" I mean
also any other GNOME session, like "GNOME on Xorg", "GNOME fallback"...
Only GNOME (which defaults running on Wayland) successfuly starts
a user session. Due to this, I was currently forced to install
another login manager (lightdm) and use that, since that enables me
to use GNOME on Xorg (quite some apps still have problems on
Wayland). And I want to be able to use other sessions, in case GNOME
gets temporarily broken by some sid upgrade (it happened a number of
times, and being able to run MATE proved then to be absolutely
necessary).

I would gladly produce any debugging info that may help tracing and
solving this problem. Just give me directions on what you want me to
test and what log files to collect and send.

Thanks, best regards
Giacomo Mulas

-- System Information:
Debian Release: bullseye/sid
APT prefers unstable
APT policy: (401, 'unstable'), (10, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.7.17-jak (SMP w/4 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to it_IT.UTF-8), LANGUAGE=it_IT,en_EN
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gdm3 depends on:
ii accountsservice 0.6.55-3
ii adduser 3.118
ii cinnamon [x-window-manager] 4.6.7-1
ii cinnamon-session [x-session-manager] 4.6.2-1
ii cwm [x-window-manager] 6.6-2
ii dbus 1.12.20-1
ii dconf-cli 0.36.0-1
ii dconf-gsettings-backend 0.36.0-1
ii debconf [debconf-2.0] 1.5.74
ii gir1.2-gdm-1.0 3.36.2-1
ii gnome-session [x-session-manager] 3.36.0-2
ii gnome-session-bin 3.36.0-2+b1
ii gnome-session-flashback [x-session-manager] 3.36.4-1
ii gnome-settings-daemon 3.36.1-1
ii gnome-shell 3.36.5-1
ii gnome-terminal [x-terminal-emulator] 3.36.2-1
ii gsettings-desktop-schemas 3.36.1-1
ii icewm [x-window-manager] 1.6.6-1
ii icewm-experimental [x-window-manager] 1.6.6-1
ii kitty [x-terminal-emulator] 0.18.3-1
ii konsole [x-terminal-emulator] 4:20.08.0-1
ii kwin-x11 [x-window-manager] 4:5.17.5-2+b1
ii libaccountsservice0 0.6.55-3
ii libaudit1 1:2.8.5-3+b1
ii libc6 2.31-3
ii libcanberra-gtk3-0 0.30-7
ii libcanberra0 0.30-7
ii libgdk-pixbuf2.0-0 2.40.0+dfsg-5
ii libgdm1 3.36.2-1
ii libglib2.0-0 2.64.4-1
ii libglib2.0-bin 2.64.4-1
ii libgtk-3-0 3.24.22-1
ii libkeyutils1 1.6.1-2
ii libpam-modules 1.3.1-5
ii libpam-runtime 1.3.1-5
ii libpam-systemd 246.2-1
ii libpam0g 1.3.1-5
ii librsvg2-common 2.48.7-1
ii libselinux1 3.1-2
ii libsystemd0 246.2-1
ii libwrap0 7.6.q-30
ii libx11-6 2:1.6.10-3
ii libxau6 1:1.0.8-1+b2
ii libxcb1 1.14-2
ii libxdmcp6 1:1.1.2-3
ii lsb-base 11.1.0
ii marco [x-window-manager] 1.24.1-1
ii mate-session-manager [x-session-manager] 1.24.1-1
ii mate-terminal [x-terminal-emulator] 1.24.1-1
ii metacity [x-window-manager] 1:3.36.1-1
ii muffin [x-window-manager] 4.6.3-1
ii mutter [x-window-manager] 3.36.5-1
ii mwm [x-window-manager] 2.3.8-3
ii openbox [x-window-manager] 3.6.1-9
ii plasma-workspace [x-session-manager] 4:5.17.5-4
ii policykit-1 0.105-29
ii procps 2:3.3.16-5
ii sawfish [x-window-manager] 1:1.11.90-1.1+b1
ii twm [x-window-manager] 1:1.0.10-1
ii ucf 3.0043
ii x11-common 1:7.7+20
ii x11-xserver-utils 7.7+8
ii xfce4-session [x-session-manager] 4.14.2-1
ii xfce4-terminal [x-terminal-emulator] 0.8.9.2-1
ii xfwm4 [x-window-manager] 4.14.5-1
ii xterm [x-terminal-emulator] 359-1

Versions of packages gdm3 recommends:
ii at-spi2-core 2.36.0-3
ii desktop-base 10.0.3
ii x11-xkb-utils 7.7+5
ii xserver-xephyr 2:1.20.8-2
ii xserver-xorg 1:7.7+20
ii zenity 3.32.0-5

Versions of packages gdm3 suggests:
ii gnome-orca 3.36.5-1
pn libpam-fprintd <none>
ii libpam-gnome-keyring 3.36.0-1

-- debconf information excluded

Grégory Mounié

unread,
Mar 4, 2022, 5:40:03 AM3/4/22
to
Package: gdm3
Version: 41.3-1
Followup-For: Bug #969106

Dear Maintainer,

For a few days, I am not able to start a X11 session with default settings of
gdm3 (tried: Gnome in Xorg, Plasma in X11; lxqt) (I suppose gdm3 is in Wayland
mode from some time now ?). Login succeeds, but come back to login screen
almost instantly.

I can start plasma in wayland and gnome in wayland.

I am able to start Windowmaker (Why this one, I do not know. It is definitely a
simpler but only X11 window manager )

When I fallback to X11 in gdm3 daemon settings, everything is ok.

Note: I am using a recent optimus laptop (thus with software muxer) with the
nouveau driver. It may be related as Wayland is still buggy in my usage (using
gnome or plasma): I have frequent change in display settings with external
screen on usb-C dock and various videoprojectors (VGA or HDMI).


-- System Information:
Debian Release: bookworm/sid
APT prefers unstable
APT policy: (990, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.16.0-3-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr:en_US
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gdm3 depends on:
ii accountsservice 22.07.5-1
ii adduser 3.118
ii awesome [x-window-manager] 4.3-5+b2
ii cinnamon-session [x-session-manager] 5.2.0-2
ii clfswm [x-window-manager] 20111015.git51b0a02-3
ii cool-retro-term [x-terminal-emulator] 1.2.0+ds-4
ii dbus [default-dbus-system-bus] 1.14.0-1
ii dbus-bin 1.14.0-1
ii dbus-broker [dbus-system-bus] 29-4
ii dbus-daemon 1.14.0-1
ii dconf-cli 0.40.0-3
ii dconf-gsettings-backend 0.40.0-3
ii debconf [debconf-2.0] 1.5.79
ii deepin-terminal [x-terminal-emulator] 5.2.11-1
ii enlightenment [x-window-manager] 0.25.3-1
ii eterm [x-terminal-emulator] 0.9.6-6.1
ii fvwm [x-window-manager] 1:2.6.8-1+b2
ii fvwm-crystal [x-window-manager] 3.4.1+dfsg-3
ii gir1.2-gdm-1.0 41.3-1
ii gnome-session [x-session-manager] 41.3-1
ii gnome-session-bin 41.3-1
ii gnome-session-common 41.3-1
ii gnome-session-flashback [x-session-manager 3.42.0-2
ii gnome-settings-daemon 41.0-4+b1
ii gnome-shell 41.4-1
ii gnome-terminal [x-terminal-emulator] 3.43.90-1
ii gsettings-desktop-schemas 42~beta-1
ii i3-wm [x-window-manager] 4.20.1-1
ii icewm [x-window-manager] 2.9.6-1
ii kitty [x-terminal-emulator] 0.21.2-1
ii konsole [x-terminal-emulator] 4:21.12.2-1
ii kwin-x11 [x-window-manager] 4:5.24.2-1
ii libaccountsservice0 22.07.5-1
ii libaudit1 1:3.0.7-1
ii libc6 2.33-7
ii libcanberra-gtk3-0 0.30-8
ii libcanberra0 0.30-8
ii libgdk-pixbuf-2.0-0 2.42.6+dfsg-2
ii libgdm1 41.3-1
ii libglib2.0-0 2.70.4-1
ii libglib2.0-bin 2.70.4-1
ii libgtk-3-0 3.24.31-1
ii libkeyutils1 1.6.1-2
ii libpam-modules 1.4.0-11
ii libpam-runtime 1.4.0-11
ii libpam-systemd [logind] 250.3-2
ii libpam0g 1.4.0-11
ii librsvg2-common 2.52.5+dfsg-3+b1
ii libselinux1 3.3-1+b1
ii libsystemd0 250.3-2
ii libx11-6 2:1.7.2-2+b1
ii libxau6 1:1.0.9-1
ii libxcb1 1.14-3
ii libxdmcp6 1:1.1.2-3
ii lilyterm [x-terminal-emulator] 0.9.9.4+git20150208.f600c0-5+b1
ii lsb-base 11.1.0
ii lxqt-session [x-session-manager] 0.16.0-1
ii lxsession [x-session-manager] 0.5.5-2+b1
ii lxterminal [x-terminal-emulator] 0.4.0-2
ii marco [x-window-manager] 1.26.0-1
ii matchbox-window-manager [x-window-manager] 1.2.2+git20200512-1
ii mate-session-manager [x-session-manager] 1.26.0-1
ii mate-terminal [x-terminal-emulator] 1.26.0-1
ii metacity [x-window-manager] 1:3.42.0-1
ii mlterm [x-terminal-emulator] 3.9.0-1+b1
ii muffin [x-window-manager] 5.2.0-2+b1
ii mutter [x-window-manager] 41.4-1
ii openbox [x-window-manager] 3.6.1-10
ii openbox-lxde-session [x-session-manager] 0.99.2-4
ii plasma-workspace [x-session-manager] 4:5.24.2-2
ii policykit-1 0.105-33
ii procps 2:3.3.17-6
ii qterminal [x-terminal-emulator] 0.16.1-1
ii rxvt-unicode [x-terminal-emulator] 9.30-2+b2
ii sakura [x-terminal-emulator] 3.8.4-1
ii sawfish [x-window-manager] 1:1.11.90-1.2
ii stterm [x-terminal-emulator] 0.8.4-1
ii stumpwm [x-window-manager] 2:1.0.0-1
ii systemd-sysv 250.3-2
ii terminator [x-terminal-emulator] 2.1.1-1
ii terminology [x-terminal-emulator] 1.12.1-1+b1
ii ucf 3.0043
ii wmaker [x-window-manager] 0.95.9-3
ii x11-common 1:7.7+23
ii x11-xserver-utils 7.7+9
ii xfce4-session [x-session-manager] 4.16.0-1
ii xfce4-terminal [x-terminal-emulator] 0.8.10-1
ii xfwm4 [x-window-manager] 4.16.1-1
ii xiterm+thai [x-terminal-emulator] 1.10-2+b2
ii xmonad [x-window-manager] 0.15-4+b2
ii xterm [x-terminal-emulator] 370-2

Versions of packages gdm3 recommends:
ii at-spi2-core 2.42.0-2
ii cinnamon-session [x-session-manager] 5.2.0-2
ii desktop-base 11.0.3
ii gnome-session [x-session-manager] 41.3-1
ii gnome-session-flashback [x-session-manager] 3.42.0-2
ii lxqt-session [x-session-manager] 0.16.0-1
ii lxsession [x-session-manager] 0.5.5-2+b1
ii mate-session-manager [x-session-manager] 1.26.0-1
ii openbox [x-session-manager] 3.6.1-10
ii openbox-lxde-session [x-session-manager] 0.99.2-4
ii plasma-workspace [x-session-manager] 4:5.24.2-2
ii x11-xkb-utils 7.7+5
ii xfce4-session [x-session-manager] 4.16.0-1
ii xserver-xephyr 2:21.1.3-2+b1
ii xserver-xorg 1:7.7+23
ii zenity 3.41.0-2

Versions of packages gdm3 suggests:
pn libpam-fprintd <none>
ii libpam-gnome-keyring 40.0-3
pn libpam-pkcs11 <none>
pn libpam-sss <none>
ii orca 41.2-1

-- Configuration Files:
/etc/gdm3/daemon.conf changed:
[daemon]
WaylandEnable=false
[security]
[xdmcp]
[chooser]
[debug]


-- debconf information:
* shared/default-x-display-manager: gdm3
gdm3/daemon_name: /usr/sbin/gdm3
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