Bug#907701: Unable to load GDM on hybrid system after switching to nvidia driver

Fri Aug 31 16:40:02 BST 2018

Package: nvidia-driver
Version: 390.77-1

New laptop with hybrid video system.

Installed debian testing with Gnome desktop. GDM and gnome shell were functioning correctly until i installed nvidia-driver package (i do not know which driver system used at that point). Optimus packages are not installed.

After installing nvidia-driver package, GDM fails to launch. Console output it shown, then system attempts to launch display server, fails, a second later attempts to launch again. Sometimes it manages to load it. I do not know if it's connected to my activity (trying to switch ttys, for example, or maybe something else) or not. Chances to load successfully are very low per attempt nevertheless (<10%).

Info about system:

Kernel: Linux kreo 4.17.0-3-amd64 #1 SMP Debian 4.17.17-1 (2018-08-18) x86_64 GNU/Linux

Graphics card lspci output:
00:02.0 Display controller: Intel Corporation Device 3e9b
01:00.0 VGA compatible controller: NVIDIA Corporation GP104M [GeForce GTX 1080] (rev a1)

Installed nvidia packages:
$ apt list --installed | grep nvidia
glx-alternative-nvidia/testing,unstable,now 0.8.7 amd64 [installed,automatic]
libegl-nvidia0/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libegl1-nvidia/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libgl1-nvidia-glx/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libgles-nvidia1/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libgles-nvidia2/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libglx-nvidia0/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libnvidia-cfg1/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libnvidia-egl-wayland1/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libnvidia-eglcore/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libnvidia-glcore/testing,unstable,now 390.77-1 amd64 [installed,automatic]
libnvidia-ml1/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-alternative/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-driver/testing,unstable,now 390.77-1 amd64 [installed]
nvidia-driver-bin/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-driver-libs-nonglvnd/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-egl-wayland-common/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-egl-wayland-icd/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-installer-cleanup/testing,unstable,now 20151021+8 amd64 [installed,automatic]
nvidia-kernel-common/testing,unstable,now 20151021+8 amd64 [installed,automatic]
nvidia-kernel-dkms/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-kernel-support/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-legacy-check/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-modprobe/testing,unstable,now 390.25-1 amd64 [installed,automatic]
nvidia-nonglvnd-vulkan-common/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-nonglvnd-vulkan-icd/testing,unstable,now 390.77-1 amd64 [installed,automatic]
nvidia-persistenced/testing,unstable,now 390.25-1 amd64 [installed,automatic]
nvidia-settings/testing,unstable,now 390.67-1 amd64 [installed,automatic]
nvidia-support/testing,unstable,now 20151021+8 amd64 [installed,automatic]
nvidia-vdpau-driver/testing,unstable,now 390.77-1 amd64 [installed,automatic]
xserver-xorg-video-nvidia/testing,unstable,now 390.77-1 amd64 [installed,automatic]

Xorg log errors with some context:
...
[    46.151] (II) Module nouveau: vendor="X.Org Foundation"
[    46.151]    compiled for 1.20.0, module version = 1.0.15
[    46.151]    Module class: X.Org Video Driver
[    46.151]    ABI class: X.Org Video Driver, version 24.0
[    46.151] (II) LoadModule: "nv"
[    46.151] (WW) Warning, couldn't open module nv
[    46.151] (EE) Failed to load module "nv" (module does not exist, 0)
...
[    46.870] (II) Module glamoregl: vendor="X.Org Foundation"
[    46.870]    compiled for 1.20.1, module version = 1.0.1
[    46.870]    ABI class: X.Org ANSI C Emulation, version 0.4
[    46.875] (EE) modeset(G0): eglGetDisplay() failed
[    46.875] (EE) modeset(G0): glamor initialization failed

Systemd journal errors (related or not, hard to judge for me):
Aug 31 15:03:17 kreo kernel: iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
Aug 31 15:03:17 kreo kernel: iTCO_wdt iTCO_wdt: can't request region for resource [mem 0x00c5fffc-0x00c5ffff]
Aug 31 15:03:17 kreo kernel: iTCO_wdt: probe of iTCO_wdt failed with error -16
...
Aug 31 15:03:17 kreo kernel: ath10k_pci 0000:45:00.0: firmware: failed to load ath10k/pre-cal-pci-0000:45:00.0.bin (-2)
Aug 31 15:03:17 kreo kernel: firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware
Aug 31 15:03:17 kreo kernel: ath10k_pci 0000:45:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:45:00.0.bin failed with error -2
Aug 31 15:03:17 kreo kernel: ath10k_pci 0000:45:00.0: firmware: failed to load ath10k/cal-pci-0000:45:00.0.bin (-2)
Aug 31 15:03:17 kreo kernel: ath10k_pci 0000:45:00.0: Direct firmware load for ath10k/cal-pci-0000:45:00.0.bin failed with error -2
Aug 31 15:03:17 kreo kernel: ath10k_pci 0000:45:00.0: firmware: direct-loading firmware ath10k/QCA6174/hw3.0/firmware-6.bin
Aug 31 15:03:17 kreo kernel: ath10k_pci 0000:45:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1a56:1435
Aug 31 15:03:17 kreo kernel: ath10k_pci 0000:45:00.0: kconfig debug 0 debugfs 0 tracing 0 dfs 0 testmode 0
Aug 31 15:03:17 kreo kernel: ath10k_pci 0000:45:00.0: firmware ver WLAN.RM.4.4.1-00079-QCARMSWPZ-1 api 6 features wowlan,ignore-otp crc32 fd869beb
...
Aug 31 15:03:21 kreo bluetoothd[684]: Sap driver initialization failed.
Aug 31 15:03:21 kreo systemd[1]: Starting Network Manager...
Aug 31 15:03:21 kreo bluetoothd[684]: sap-server: Operation not permitted (1)
...
Aug 31 15:03:22 kreo dbus-daemon[691]: [system] Activating via systemd: service name='org.freedesktop.UPower' unit='upower.service' requested by ':1.19' (uid=116 pid=786 comm="/usr/bin/gnome-shell ")
Aug 31 15:03:22 kreo systemd[1]: Starting Daemon for power management...
Aug 31 15:03:22 kreo kernel: IPv6: ADDRCONF(NETDEV_UP): wlp69s0: link is not ready
Aug 31 15:03:22 kreo NetworkManager[696]: <info>  [1535717002.6036] device (wlp69s0): set-hw-addr: set MAC address to 16:34:E0:44:09:B0 (scanning)
Aug 31 15:03:22 kreo dbus-daemon[691]: [system] Successfully activated service 'org.freedesktop.UPower'
Aug 31 15:03:22 kreo systemd[1]: Started Daemon for power management.
Aug 31 15:03:22 kreo gnome-shell[786]: Failed to create backend: No resources
Aug 31 15:03:22 kreo gnome-session[779]: gnome-session-binary[779]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1
Aug 31 15:03:22 kreo gnome-session-binary[779]: Unrecoverable failure in required component org.gnome.Shell.desktop
Aug 31 15:03:22 kreo gnome-session-binary[779]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1
Aug 31 15:03:22 kreo systemd-logind[698]: Session c1 logged out. Waiting for processes to exit.
Aug 31 15:03:22 kreo gdm-launch-environment][759]: pam_unix(gdm-launch-environment:session): session closed for user Debian-gdm
Aug 31 15:03:22 kreo systemd-logind[698]: Removed session c1.
Aug 31 15:03:22 kreo gdm3[739]: GdmDisplay: display lasted 0.728247 seconds
Aug 31 15:03:22 kreo systemd[1]: user-runtime-dir at 116.service: Unit not needed anymore. Stopping.
Aug 31 15:03:22 kreo gdm3[739]: Child process -775 was already dead.
Aug 31 15:03:22 kreo systemd[1]: Stopping User Manager for UID 116...
Aug 31 15:03:22 kreo gdm3[739]: Child process 759 was already dead.
Aug 31 15:03:22 kreo systemd[764]: Stopped target Default.
Aug 31 15:03:22 kreo gdm3[739]: Unable to kill session worker process
Aug 31 15:03:22 kreo systemd[764]: Stopping D-Bus User Message Bus...
Aug 31 15:03:22 kreo gdm-launch-environment][814]: pam_unix(gdm-launch-environment:session): session opened for user Debian-gdm by (uid=0)
Aug 31 15:03:22 kreo systemd-logind[698]: New session c2 of user Debian-gdm.
Aug 31 15:03:22 kreo gdm-launch-environment][814]: pam_systemd(gdm-launch-environment:session): Failed to create session: Start job for unit user-116.slice failed with 'canceled'
Aug 31 15:03:22 kreo systemd[1]: Started Session c2 of user Debian-gdm.
Aug 31 15:03:22 kreo systemd[765]: pam_unix(systemd-user:session): session closed for user Debian-gdm
Aug 31 15:03:22 kreo systemd[764]: Stopped D-Bus User Message Bus.
Aug 31 15:03:22 kreo systemd[818]: pam_unix(systemd-user:session): session opened for user Debian-gdm by (uid=0)
Aug 31 15:03:22 kreo systemd[764]: Stopped target Basic System.
Aug 31 15:03:22 kreo systemd[764]: Stopped target Sockets.
Aug 31 15:03:22 kreo systemd[764]: Closed Sound System.
Aug 31 15:03:22 kreo systemd[764]: Closed GnuPG cryptographic agent and passphrase cache (restricted).
Aug 31 15:03:22 kreo systemd[764]: Closed GnuPG cryptographic agent and passphrase cache (access for web browsers).
Aug 31 15:03:22 kreo systemd[764]: Closed GnuPG network certificate management daemon.
Aug 31 15:03:22 kreo systemd[764]: Closed GnuPG cryptographic agent (ssh-agent emulation).
Aug 31 15:03:22 kreo systemd[764]: Closed GnuPG cryptographic agent and passphrase cache.
Aug 31 15:03:22 kreo systemd[764]: Stopped target Timers.
Aug 31 15:03:22 kreo systemd[764]: Stopped target Paths.
Aug 31 15:03:22 kreo systemd[764]: Closed D-Bus User Message Bus Socket.
Aug 31 15:03:22 kreo systemd[764]: Reached target Shutdown.
Aug 31 15:03:22 kreo systemd[764]: Starting Exit the Session...
Aug 31 15:03:22 kreo systemd[1]: Starting User Manager for UID 116...
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
...
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) LoadModule: "glx"
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading /usr/lib/xorg/modules/linux/libglx.so
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Module glx: vendor="NVIDIA Corporation"
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]:         compiled for 4.0.2, module version = 1.0.0
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]:         Module class: X.Org Server Extension
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA GLX Module  390.77  Tue Jul 10 22:05:43 PDT 2018
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Applying OutputClass "nvidia" to /dev/dri/card0
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]:         loading driver: nvidia
...
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) LoadModule: "nvidia"
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Module nvidia: vendor="NVIDIA Corporation"
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]:         compiled for 4.0.2, module version = 1.0.0
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]:         Module class: X.Org Video Driver
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) LoadModule: "nouveau"
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Module nouveau: vendor="X.Org Foundation"
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]:         compiled for 1.20.0, module version = 1.0.15
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]:         Module class: X.Org Video Driver
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]:         ABI class: X.Org Video Driver, version 24.0
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) LoadModule: "nv"
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (WW) Warning, couldn't open module nv
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (EE) Failed to load module "nv" (module does not exist, 0)
...
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) LoadModule: "ramdac"
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Module "ramdac" already built-in
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (WW) Falling back to old probe method for modesetting
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (WW) Falling back to old probe method for fbdev
...
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): using drv /dev/dri/card1
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0): Creating default Display subsection in Screen section
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]:         "Default Screen Section" for depth/fbbpp 24/32
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0): Depth 24, (==) framebuffer bpp 32
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0): RGB weight 888
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0): Default visual is TrueColor
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
Aug 31 15:03:22 kreo /usr/lib/gdm3/gdm-x-session[819]: (**) NVIDIA(0): Enabling 2D acceleration
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Listening on Sound System.
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Listening on GnuPG cryptographic agent (ssh-agent emulation).
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Reached target Paths.
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Listening on GnuPG cryptographic agent and passphrase cache (access for web browsers).
Aug 31 15:03:22 kreo systemd[818]: Failed to connect to API bus: Connection refused
Aug 31 15:03:22 kreo systemd[818]: Starting D-Bus User Message Bus Socket.
Aug 31 15:03:22 kreo systemd[818]: Listening on GnuPG cryptographic agent and passphrase cache.
Aug 31 15:03:22 kreo systemd[818]: Reached target Timers.
... (quite many log entries from systemd before x logs resume)
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:1:0:0
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(0):     DFP-0
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(0):     DFP-1 (boot)
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(0):     DFP-2
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(0):     DFP-3
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0): NVIDIA GPU GeForce GTX 1080 (GP104-B) at PCI:1:0:0 (GPU-0)
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(0): Memory: 8388608 kBytes
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(0): VideoBIOS: 86.04.8a.00.6b
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0): Detected PCI Express Link width: 16X
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): DFP-0: disconnected
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): DFP-0: Internal TMDS
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): DFP-0: 165.0 MHz maximum pixel clock
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0):
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): AU Optronics Corporation (DFP-1): connected
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): AU Optronics Corporation (DFP-1): Internal DisplayPort
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): AU Optronics Corporation (DFP-1): 1440.0 MHz maximum pixel clock
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0):
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): DFP-2: disconnected
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): DFP-2: 1440.0 MHz maximum pixel clock
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0):
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): DFP-3: disconnected
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): DFP-3: Internal TMDS
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): DFP-3: 165.0 MHz maximum pixel clock
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0):
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0):
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0):     will be used as the requested mode.
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0):
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0): Validated MetaModes:
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0):     "DFP-1:nvidia-auto-select"
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0): Virtual screen size determined to be 3840 x 2160
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(0): DPI set to (256, 261); computed from "UseEdidDpi" X config
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(0):     option
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) modeset(G0): Depth 24, (==) framebuffer bpp 32
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) modeset(G0): RGB weight 888
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) modeset(G0): Default visual is TrueColor
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading sub module "glamoregl"
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) LoadModule: "glamoregl"
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading /usr/lib/xorg/modules/libglamoregl.so
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Module glamoregl: vendor="X.Org Foundation"
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]:         compiled for 1.20.1, module version = 1.0.1
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]:         ABI class: X.Org ANSI C Emulation, version 0.4
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (EE) modeset(G0): eglGetDisplay() failed
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (EE) modeset(G0): glamor initialization failed
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): ShadowFB: preferred YES, enabled YES
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): Double-buffered shadow updates: off
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): Output DP-1-1 has no monitor section
Aug 31 15:03:23 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): Output HDMI-1-1 has no monitor section
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): Output HDMI-1-2 has no monitor section
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): Output DP-1-2 has no monitor section
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): EDID for output DP-1-1
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): EDID for output HDMI-1-1
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): EDID for output HDMI-1-2
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): EDID for output DP-1-2
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) modeset(G0): Using gamma correction (1.0, 1.0, 1.0)
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) modeset(G0): DPI set to (96, 96)
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading sub module "fb"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) LoadModule: "fb"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading /usr/lib/xorg/modules/libfb.so
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Module fb: vendor="X.Org Foundation"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]:         compiled for 1.20.1, module version = 1.0.0
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]:         ABI class: X.Org ANSI C Emulation, version 0.4
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading sub module "shadow"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) LoadModule: "shadow"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading /usr/lib/xorg/modules/libshadow.so
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Module shadow: vendor="X.Org Foundation"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]:         compiled for 1.20.1, module version = 1.1.0
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]:         ABI class: X.Org ANSI C Emulation, version 0.4
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) UnloadModule: "nouveau"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Unloading nouveau
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) UnloadModule: "fbdev"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Unloading fbdev
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) UnloadSubModule: "fbdevhw"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Unloading fbdevhw
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) UnloadModule: "vesa"
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Unloading vesa
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) modeset(G0): Backing store enabled
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) modeset(G0): Silken mouse enabled
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) modeset(G0): Initializing kms color map for depth 24, 8 bpc.
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) modeset(G0): DPMS enabled
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA: Using 24576.00 MB of virtual memory for indirect memory
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA:     access.
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0): ACPI: failed to connect to the ACPI event daemon; the daemon
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0):     may not be running or the "AcpidSocketPath" X
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0):     configuration option may not be set correctly.  When the
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0):     ACPI event daemon is available, the NVIDIA X driver will
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0):     try to use it to receive ACPI event notifications.  For
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0):     details, please see the "ConnectToAcpid" and
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0):     "AcpidSocketPath" X configuration options in Appendix B: X
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0):     Config Options in the README.
ug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0):     Config Options in the README.
Aug 31 15:03:24 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0): Setting mode "DFP-1:nvidia-auto-select"
Aug 31 15:03:24 kreo wpa_supplicant[693]: wlp69s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN
Aug 31 15:03:25 kreo avahi-daemon[685]: Joining mDNS multicast group on interface enp68s0.IPv6 with address fe80::1265:30ff:fe65:b24b.
Aug 31 15:03:25 kreo avahi-daemon[685]: New relevant interface enp68s0.IPv6 for mDNS.
Aug 31 15:03:25 kreo avahi-daemon[685]: Registering new address record for fe80::1265:30ff:fe65:b24b on enp68s0.*.
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0): Disabling shared memory pixmaps
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0): Backing store enabled
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0): Silken mouse enabled
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (==) NVIDIA(0): DPMS enabled
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Loading sub module "dri2"
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) LoadModule: "dri2"
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Module "dri2" already built-in
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0): [DRI2] Setup complete
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(0): [DRI2]   VDPAU driver: nvidia
... (loads bunch of extensions, no errors)
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Indirect GLX disabled.
... (input configuration)
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): AU Optronics Corporation (DFP-1): connected
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): AU Optronics Corporation (DFP-1): Internal DisplayPort
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0): AU Optronics Corporation (DFP-1): 1440.0 MHz maximum pixel clock
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: (--) NVIDIA(GPU-0):
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: dbus-daemon[918]: [session uid=116 pid=918] Activating service name='org.freedesktop.systemd1' requested by ':1.0' (uid=116 pid=819 comm="/usr/lib/gdm3/gdm-x-session gnome-session --autost")
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: dbus-daemon[918]: [session uid=116 pid=918] Activated service 'org.freedesktop.systemd1' failed: Process org.freedesktop.systemd1 exited with status 1
Aug 31 15:03:25 kreo /usr/lib/gdm3/gdm-x-session[819]: Unable to register display with display manager
... (removing devices)
Aug 31 15:03:26 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) NVIDIA(GPU-0): Deleting GPU-0
Aug 31 15:03:26 kreo /usr/lib/gdm3/gdm-x-session[819]: (II) Server terminated successfully (0). Closing log file.
Aug 31 15:03:26 kreo gdm-launch-environment][814]: pam_unix(gdm-launch-environment:session): session closed for user Debian-gdm
Aug 31 15:03:26 kreo systemd-logind[698]: Session c2 logged out. Waiting for processes to exit.
Aug 31 15:03:26 kreo systemd-logind[698]: Removed session c2.
Aug 31 15:03:26 kreo gdm3[739]: Child process -819 was already dead.
Aug 31 15:03:26 kreo gdm3[739]: Child process 814 was already dead.
Aug 31 15:03:26 kreo gdm3[739]: Unable to kill session worker process
Aug 31 15:03:26 kreo systemd[1]: user-runtime-dir at 116.service: Unit not needed anymore. Stopping.
Aug 31 15:03:26 kreo systemd[1]: Stopping User Manager for UID 116...
Aug 31 15:03:26 kreo systemd[818]: Stopped target Default.
Aug 31 15:03:26 kreo systemd[818]: Stopping D-Bus User Message Bus...
Aug 31 15:03:26 kreo gdm-launch-environment][925]: pam_unix(gdm-launch-environment:session): session opened for user Debian-gdm by (uid=0)
Aug 31 15:03:26 kreo systemd-logind[698]: New session c3 of user Debian-gdm.
Aug 31 15:03:26 kreo systemd[1]: Started Session c3 of user Debian-gdm.
Aug 31 15:03:26 kreo systemd[818]: Stopped D-Bus User Message Bus.
Aug 31 15:03:26 kreo systemd[818]: Stopped target Basic System.
Aug 31 15:03:26 kreo systemd[818]: Stopped target Sockets.
Aug 31 15:03:26 kreo systemd[818]: Closed GnuPG cryptographic agent (ssh-agent emulation).
Aug 31 15:03:26 kreo systemd[818]: Closed GnuPG cryptographic agent and passphrase cache (access for web browsers).
Aug 31 15:03:26 kreo systemd[818]: Closed GnuPG network certificate management daemon.
Aug 31 15:03:26 kreo systemd[818]: Closed GnuPG cryptographic agent and passphrase cache.
Aug 31 15:03:26 kreo systemd[818]: Closed Sound System.
Aug 31 15:03:26 kreo systemd[818]: Closed GnuPG cryptographic agent and passphrase cache (restricted).
Aug 31 15:03:26 kreo systemd[818]: Stopped target Timers.
Aug 31 15:03:26 kreo systemd[818]: Stopped target Paths.
Aug 31 15:03:26 kreo systemd[818]: Closed D-Bus User Message Bus Socket.
Aug 31 15:03:26 kreo systemd[818]: Reached target Shutdown.
Aug 31 15:03:26 kreo systemd[818]: Starting Exit the Session...
Aug 31 15:03:26 kreo gdm-launch-environment][925]: pam_systemd(gdm-launch-environment:session): Failed to create session: Start job for unit user-116.slice failed with 'canceled'
Aug 31 15:03:26 kreo /usr/lib/gdm3/gdm-wayland-session[929]: dbus-daemon[931]: [session uid=116 pid=931] Activating service name='org.freedesktop.systemd1' requested by ':1.0' (uid=116 pid=929 comm="/usr/lib/gdm
Aug 31 15:03:26 kreo /usr/lib/gdm3/gdm-wayland-session[929]: dbus-daemon[931]: [session uid=116 pid=931] Activated service 'org.freedesktop.systemd1' failed: Process org.freedesktop.systemd1 exited with status 1
Aug 31 15:03:26 kreo /usr/lib/gdm3/gdm-wayland-session[929]: Unable to register display with display manager
Aug 31 15:03:26 kreo gdm-launch-environment][925]: pam_unix(gdm-launch-environment:session): session closed for user Debian-gdm
Aug 31 15:03:26 kreo systemd[820]: pam_unix(systemd-user:session): session closed for user Debian-gdm
Aug 31 15:03:26 kreo systemd[937]: pam_unix(systemd-user:session): session opened for user Debian-gdm by (uid=0)

After, process seems to repeat once again. See link [1] in case you need full logs (might become inaccessible later).

I am not 100% confident that nvidia driver is to blame, but as it started after switching to it - i feel it's good enough place to start.

[1] https://www.dropbox.com/s/4m30w52em6zj238/aw_logs.7z?dl=0

Regards,
-av