Bug#1074061: /usr/sbin/gdm3: gdm3+nouveau/nvidia 535 blank login screen with DisplayLink, worked with nvidia 525
Jonathan Kamens
jik at kamens.us
Sat Jun 22 16:51:00 BST 2024
Package: gdm3
Version: 46.0-2+b3
Severity: normal
File: /usr/sbin/gdm3
Dear Maintainer,
I have an NVidia graphics card. The following problem occurs both when
I am using the NVidia 535 driver and when I am using the open-source
Nouveau driver, i.e., when I completely purge all *nvidia* packages
from my system and reboot. This problem did _not_ occur with the
NVidia 525 driver before I upgraded to 535, and indeed I believe
that's the reason why I previously chose not to upgrade to 535.
Apparently moving forward that's not going to be an option because 525
is deprecated, so if this issue isn't fixed there's no longer a
workaround for me. :-/
I have two screens plugged into a DisplayLink hub.
When I have automatic login enabled in /etc/gdm3/daemon.conf, I can
reboot my system and go straight to being logged in with no trouble.
However, when I disable automatic login and reboot, or restart the gdm
service, or just log out from the automatic login session, then both
of my screens get _some_ signal from the computer after gdm starts up,
i.e., both monitors think they're displaying an image from the
computer rather than being in power-save mode, and indeed there's even
an X cursor on one monitor that I can move with my mouse, but the
login screen does not appear.
If I unplug both monitors from the DisplayLink hub and plug one of
them directly into the computer, the login screen immediately appears.
Note: if there is someone qualified who wants to investigate this
issue but the lack of a DisplayLink hub is impeding your ability to do
that, then I will pay to send you one either by shipping you one of my
extras or just reimbursing you for the cost of ordering one. I would
like to see this fixed and while I don't have the technical knowledge
or experience to fix it myself I am happy to put up enough money to
supply someone else with the hardware they need to work on it.
-- System Information:
Debian Release: trixie/sid
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 6.8.12-amd64 (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
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 23.13.9-6.1
ii adduser 3.137
ii dbus [default-dbus-system-bus] 1.14.10-4+b1
ii dbus-bin 1.14.10-4+b1
ii dbus-daemon 1.14.10-4+b1
ii dconf-cli 0.40.0-4+b2
ii dconf-gsettings-backend 0.40.0-4+b2
ii debconf [debconf-2.0] 1.5.86
ii gir1.2-gdm-1.0 46.0-2+b3
ii gnome-session [x-session-manager] 46.0-2
ii gnome-session-bin 46.0-2
ii gnome-session-common 46.0-2
ii gnome-settings-daemon 46.0-1+b3
ii gnome-shell 44.9-2+b1
ii gnome-terminal [x-terminal-emulator] 3.52.2-1
ii gsettings-desktop-schemas 46.0-1
ii libaccountsservice0 23.13.9-6.1
ii libaudit1 1:3.1.2-4
ii libc6 2.38-13
ii libcanberra-gtk3-0 0.30-17
ii libcanberra0 0.30-17
ii libgdk-pixbuf-2.0-0 2.42.12+dfsg-1
ii libgdm1 46.0-2+b3
ii libglib2.0-0t64 2.80.2-2
ii libglib2.0-bin 2.80.2-2
ii libgtk-3-0t64 3.24.42-1
ii libgudev-1.0-0 238-5
ii libjson-glib-1.0-0 1.8.0-2+b1
ii libkeyutils1 1.6.3-3
ii libpam-modules 1.5.3-7
ii libpam-runtime 1.5.3-7
ii libpam-systemd [logind] 256-1
ii libpam0g 1.5.3-7
ii librsvg2-common 2.58.0+dfsg-1
ii libselinux1 3.5-2+b2
ii libsystemd0 256-1
ii libx11-6 2:1.8.7-1+b1
ii libxau6 1:1.0.9-1+b1
ii libxcb1 1.17.0-2
ii libxdmcp6 1:1.1.2-3+b1
ii openbox [x-window-manager] 3.6.1-12+b1
ii polkitd 124-2
ii procps 2:4.0.4-4
ii systemd-sysv 256-1
ii ucf 3.0043+nmu1
ii x11-common 1:7.7+23
ii x11-xserver-utils 7.7+10+b1
ii xterm [x-terminal-emulator] 392-1
Versions of packages gdm3 recommends:
ii at-spi2-core 2.52.0-1
ii desktop-base 12.0.6+nmu1
ii gnome-session [x-session-manager] 46.0-2
ii openbox [x-session-manager] 3.6.1-12+b1
ii x11-xkb-utils 7.7+8+b1
ii xserver-xephyr 2:21.1.12-1
ii xserver-xorg 1:7.7+23
ii zenity 4.0.1-1+b1
Versions of packages gdm3 suggests:
ii libpam-fprintd 1.94.3-1
ii libpam-gnome-keyring 46.1-2
pn libpam-pkcs11 <none>
pn libpam-sss <none>
ii orca 46.1-1
-- Configuration Files:
/etc/gdm3/daemon.conf changed:
[daemon]
AutomaticLoginEnable = True
AutomaticLogin = jik
[security]
[xdmcp]
[chooser]
[debug]
/etc/pam.d/gdm-fingerprint changed:
auth requisite pam_nologin.so
auth required pam_succeed_if.so user != root quiet_success
auth required pam_fprintd.so max-tries=7
auth optional pam_gnome_keyring.so
@include common-account
session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close
session required pam_loginuid.so
session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open
session optional pam_keyinit.so force revoke
session required pam_limits.so
session required pam_env.so readenv=1
session required pam_env.so readenv=1 envfile=/etc/default/locale
@include common-session
session optional pam_gnome_keyring.so auto_start
password required pam_fprintd.so max-tries=7
-- debconf information:
* shared/default-x-display-manager: gdm3
gdm3/daemon_name: /usr/sbin/gdm3
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