Package: gdm3 Version: 3.22.1-1 Severity: normal I have a dual-monitor setup with an external monitor connected to my laptop (intel graphics). After resuming from hibernate, most of the times the external monitor does not switch on anymore. It is also not possible to log in, since the working monitor does not show any login dialog etc. Trying to switch to a console leads to a restart of gdm, showing the login dialog (the second monitor remains switched off), but trying to login does not work (it returns to the login screen immediately). The then-available shutdown button can be used, but the system never succeeds in actually shutting down the system, it remains on with switched-off screen. Only a hard reset resolves that situation then.
A few times the external monitor switched on, but not the laptop monitor. Then it was possible to log in, and the laptop monitor appears to be switched off in the monitor settings. Attempting to switch it on fails without reaction. In the first case, I see the following in the syslog: /usr/lib/gdm3/gdm-x-session[1978]: (EE) modeset(0): failed to set mode: Invalid argument and then lots of: /usr/lib/gdm3/gdm-x-session[1978]: (WW) modeset(0): flip queue failed: Device or resource busy /usr/lib/gdm3/gdm-x-session[1978]: (WW) modeset(0): Page flip failed: Device or resource busy /usr/lib/gdm3/gdm-x-session[1978]: (EE) modeset(0): present flip failed In the second case: /usr/lib/gdm3/gdm-x-session[2322]: (EE) modeset(0): failed to set mode: Invalid argument org.gnome.Shell.desktop[29479]: Window manager warning: Configuring CRTC 63 with mode 75 (1366 x 768 @ 60.018642) at position 1680, 0 and transform 0 failed In the worst case, this can lead to data loss because a hard reset is needed. Any more information needed? -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.8.0-2-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages gdm3 depends on: ii accountsservice 0.6.40-4 ii adduser 3.115 ii dconf-cli 0.26.0-2 ii dconf-gsettings-backend 0.26.0-2 ii debconf [debconf-2.0] 1.5.59 ii gir1.2-gdm-1.0 3.22.1-1 ii gnome-session [x-session-manager] 3.22.2-1 ii gnome-session-bin 3.22.2-1 ii gnome-session-flashback [x-session-manager] 3.22.0-3 ii gnome-settings-daemon 3.22.1-1 ii gnome-shell 3.22.2-1 ii gnome-terminal [x-terminal-emulator] 3.22.1-1 ii gsettings-desktop-schemas 3.22.0-1 ii libaccountsservice0 0.6.40-4 ii libaudit1 1:2.6.7-1 ii libc6 2.24-8 ii libcanberra-gtk3-0 0.30-3 ii libcanberra0 0.30-3 ii libgdk-pixbuf2.0-0 2.36.2-1 ii libgdm1 3.22.1-1 ii libglib2.0-0 2.50.2-2 ii libglib2.0-bin 2.50.2-2 ii libgtk-3-0 3.22.5-1 ii libkeyutils1 1.5.9-9 ii libpam-modules 1.1.8-3.4 ii libpam-runtime 1.1.8-3.4 ii libpam-systemd 232-8 ii libpam0g 1.1.8-3.4 ii librsvg2-common 2.40.16-1 ii libselinux1 2.6-3 ii libsystemd0 232-8 ii libwrap0 7.6.q-25 ii libx11-6 2:1.6.4-2 ii libxau6 1:1.0.8-1 ii libxdmcp6 1:1.1.2-1.1 ii lsb-base 9.20161125 ii metacity [x-window-manager] 1:3.22.1-1 ii mutter [x-window-manager] 3.22.2-2 ii policykit-1 0.105-17 ii ucf 3.0036 ii x11-common 1:7.7+18 ii x11-xserver-utils 7.7+7 ii xterm [x-terminal-emulator] 327-2 Versions of packages gdm3 recommends: ii at-spi2-core 2.22.0-4 ii desktop-base 8.0.2 ii x11-xkb-utils 7.7+3 ii xserver-xephyr 2:1.19.0-3 ii xserver-xorg 1:7.7+18 ii zenity 3.22.0-1 Versions of packages gdm3 suggests: ii gnome-orca 3.22.2-1 ii libpam-gnome-keyring 3.20.0-3 -- debconf information: gdm3/daemon_name: /usr/sbin/gdm3 * shared/default-x-display-manager: gdm3
