I have been living dangerously by running Debian on a Asus AMD/NVIDIA laptop for about a year now. Dangerously because this system is used in a quite roaming fashion as it can sometimes be attached to a X brand KVM while the next minute to a Y brand. Each of those KVMs have their own specific physical setup (read: monitors) while are also shared by other machines/OSes.
Of course none of this should come to much excitement. Except that I have a gift for breaking things. This time around I have lost my graphical console and after having attempted a couple(!) of things, I am left with no other solution than to format my illustrious system and start a new. Unless something bright might come out of this post.
If you're still reading, I will cut straight to the chase: DisplayLink blew it up for me, more specifically this: https://github.com/AdnanHodzic/displaylink-debian
I never really got this device fully well integrated with Debian. Sure, the externally attached keyboard and mouse have always worked great but never had the monitor. Well, it worked for a couple of weeks in autumn 2024 via a kernel upgrade but then there was a change at the vendor level from what I understand.
Either way, since I wanted to give another shot at getting my DisplayLink KVM working, I went forward and followed the installation steps. After reboot, I was facing a "Failed to start lightdm.service" error message on TTY7 while being in runlevel 5.
Over the course of the next several hours I would try many things (giving me many different results) based on the many different errors I would find from the logs. Those "solutions" included reconfiguring lightdm, purging+reinstalling lightdm, reinstalling NVIDIA driver and purging xorg and xserver (and then reinstalling them), just to name a few.
In terms of system configurations I am now back somewhat at the same point before attempting anything. That means all of those packages have been reinstalled and that I am still facing a non-working TTY7. Out of all of the error messages I could harvest, I think this one is the most telling:
Code: Select all
# dmesg | grep -i evdi
[ 9.492270] evdi: [I] Initialising logging on level 4
[ 9.492271] evdi: [I] Atomic driver: yes
[ 9.492310] evdi: [I] Increasing device count to 4
[ 9.492368] evdi: [I] (card2) Opened by Task 769 (systemd-modules) of process 769 (systemd-modules)
[ 9.492375] evdi evdi.0: [drm] Cannot find any crtc or sizes
[ 9.492581] [drm] Initialized evdi 1.14.4 20240410 for evdi.0 on minor 2
[ 9.492598] evdi: [I] Evdi platform_device create
[ 9.492688] evdi: [I] (card3) Opened by Task 769 (systemd-modules) of process 769 (systemd-modules)
[ 9.492697] evdi evdi.1: [drm] Cannot find any crtc or sizes
[ 9.492859] [drm] Initialized evdi 1.14.4 20240410 for evdi.1 on minor 3
[ 9.492871] evdi: [I] Evdi platform_device create
[ 9.492955] evdi: [I] (card4) Opened by Task 769 (systemd-modules) of process 769 (systemd-modules)
[ 9.492962] evdi evdi.2: [drm] Cannot find any crtc or sizes
[ 9.493118] [drm] Initialized evdi 1.14.4 20240410 for evdi.2 on minor 4
[ 9.493129] evdi: [I] Evdi platform_device create
[ 9.493210] evdi: [I] (card5) Opened by Task 769 (systemd-modules) of process 769 (systemd-modules)
[ 9.493217] evdi evdi.3: [drm] Cannot find any crtc or sizes
[ 9.493382] [drm] Initialized evdi 1.14.4 20240410 for evdi.3 on minor 5
[ 9.493393] evdi: [I] Evdi platform_device create
[ 10.640800] evdi: [I] (card2) Opened by Task 1881 (Xorg.wrap) of process 1881 (Xorg.wrap)
[ 10.640812] evdi: [I] (card2) Closed by Task 1881 (Xorg.wrap) of process 1881 (Xorg.wrap)
[ 10.640821] evdi: [I] (card3) Opened by Task 1881 (Xorg.wrap) of process 1881 (Xorg.wrap)
[ 10.640828] evdi: [I] (card3) Closed by Task 1881 (Xorg.wrap) of process 1881 (Xorg.wrap)
[ 10.640837] evdi: [I] (card4) Opened by Task 1881 (Xorg.wrap) of process 1881 (Xorg.wrap)
[ 10.640844] evdi: [I] (card4) Closed by Task 1881 (Xorg.wrap) of process 1881 (Xorg.wrap)
[ 10.640852] evdi: [I] (card5) Opened by Task 1881 (Xorg.wrap) of process 1881 (Xorg.wrap)
[ 10.640859] evdi: [I] (card5) Closed by Task 1881 (Xorg.wrap) of process 1881 (Xorg.wrap)
[ 10.689954] evdi: [I] (card2) Opened by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.689969] evdi: [I] (card2) Closed by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.690120] evdi: [I] (card3) Opened by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.690127] evdi: [I] (card3) Closed by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.690255] evdi: [I] (card4) Opened by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.690261] evdi: [I] (card4) Closed by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.690379] evdi: [I] (card5) Opened by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.690385] evdi: [I] (card5) Closed by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.772903] evdi: [I] (card2) Opened by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.772918] evdi: [I] (card2) Closed by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.772955] evdi: [I] (card3) Opened by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.772964] evdi: [I] (card3) Closed by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.772984] evdi: [I] (card4) Opened by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.772991] evdi: [I] (card4) Closed by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.773005] evdi: [I] (card5) Opened by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.773010] evdi: [I] (card5) Closed by Task 1881 (Xorg) of process 1881 (Xorg)
[ 10.995519] evdi: [I] (card2) Opened by Task 1951 (Xorg.wrap) of process 1951 (Xorg.wrap)
[ 10.995531] evdi: [I] (card2) Closed by Task 1951 (Xorg.wrap) of process 1951 (Xorg.wrap)
[ 10.995541] evdi: [I] (card3) Opened by Task 1951 (Xorg.wrap) of process 1951 (Xorg.wrap)
[ 10.995548] evdi: [I] (card3) Closed by Task 1951 (Xorg.wrap) of process 1951 (Xorg.wrap)
[ 10.995557] evdi: [I] (card4) Opened by Task 1951 (Xorg.wrap) of process 1951 (Xorg.wrap)
[ 10.995565] evdi: [I] (card4) Closed by Task 1951 (Xorg.wrap) of process 1951 (Xorg.wrap)
[ 10.995573] evdi: [I] (card5) Opened by Task 1951 (Xorg.wrap) of process 1951 (Xorg.wrap)
[ 10.995581] evdi: [I] (card5) Closed by Task 1951 (Xorg.wrap) of process 1951 (Xorg.wrap)
[ 11.017781] evdi: [I] (card2) Opened by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.017797] evdi: [I] (card2) Closed by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.018043] evdi: [I] (card3) Opened by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.018055] evdi: [I] (card3) Closed by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.018300] evdi: [I] (card4) Opened by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.018311] evdi: [I] (card4) Closed by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.018547] evdi: [I] (card5) Opened by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.018559] evdi: [I] (card5) Closed by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.058079] evdi: [I] (card2) Opened by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.058097] evdi: [I] (card2) Closed by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.058141] evdi: [I] (card3) Opened by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.058152] evdi: [I] (card3) Closed by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.058178] evdi: [I] (card4) Opened by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.058189] evdi: [I] (card4) Closed by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.058213] evdi: [I] (card5) Opened by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.058223] evdi: [I] (card5) Closed by Task 1951 (Xorg) of process 1951 (Xorg)
[ 11.496261] evdi: [I] (card2) Opened by Task 1965 (Xorg.wrap) of process 1965 (Xorg.wrap)
[ 11.496277] evdi: [I] (card2) Closed by Task 1965 (Xorg.wrap) of process 1965 (Xorg.wrap)
[ 11.496291] evdi: [I] (card3) Opened by Task 1965 (Xorg.wrap) of process 1965 (Xorg.wrap)
[ 11.496317] evdi: [I] (card3) Closed by Task 1965 (Xorg.wrap) of process 1965 (Xorg.wrap)
[ 11.496334] evdi: [I] (card4) Opened by Task 1965 (Xorg.wrap) of process 1965 (Xorg.wrap)
[ 11.496347] evdi: [I] (card4) Closed by Task 1965 (Xorg.wrap) of process 1965 (Xorg.wrap)
[ 11.496360] evdi: [I] (card5) Opened by Task 1965 (Xorg.wrap) of process 1965 (Xorg.wrap)
[ 11.496371] evdi: [I] (card5) Closed by Task 1965 (Xorg.wrap) of process 1965 (Xorg.wrap)
[ 11.518520] evdi: [I] (card2) Opened by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.518532] evdi: [I] (card2) Closed by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.518649] evdi: [I] (card3) Opened by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.518655] evdi: [I] (card3) Closed by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.518775] evdi: [I] (card4) Opened by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.518781] evdi: [I] (card4) Closed by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.518890] evdi: [I] (card5) Opened by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.518896] evdi: [I] (card5) Closed by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.559517] evdi: [I] (card2) Opened by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.559549] evdi: [I] (card2) Closed by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.559645] evdi: [I] (card3) Opened by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.559661] evdi: [I] (card3) Closed by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.559701] evdi: [I] (card4) Opened by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.559717] evdi: [I] (card4) Closed by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.559752] evdi: [I] (card5) Opened by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.559767] evdi: [I] (card5) Closed by Task 1965 (Xorg) of process 1965 (Xorg)
[ 11.996997] evdi: [I] (card2) Opened by Task 1996 (Xorg.wrap) of process 1996 (Xorg.wrap)
[ 11.997013] evdi: [I] (card2) Closed by Task 1996 (Xorg.wrap) of process 1996 (Xorg.wrap)
[ 11.997027] evdi: [I] (card3) Opened by Task 1996 (Xorg.wrap) of process 1996 (Xorg.wrap)
[ 11.997038] evdi: [I] (card3) Closed by Task 1996 (Xorg.wrap) of process 1996 (Xorg.wrap)
[ 11.997051] evdi: [I] (card4) Opened by Task 1996 (Xorg.wrap) of process 1996 (Xorg.wrap)
[ 11.997061] evdi: [I] (card4) Closed by Task 1996 (Xorg.wrap) of process 1996 (Xorg.wrap)
[ 11.997074] evdi: [I] (card5) Opened by Task 1996 (Xorg.wrap) of process 1996 (Xorg.wrap)
[ 11.997084] evdi: [I] (card5) Closed by Task 1996 (Xorg.wrap) of process 1996 (Xorg.wrap)
[ 12.019289] evdi: [I] (card2) Opened by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.019317] evdi: [I] (card2) Closed by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.019679] evdi: [I] (card3) Opened by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.019697] evdi: [I] (card3) Closed by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.020060] evdi: [I] (card4) Opened by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.020077] evdi: [I] (card4) Closed by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.020208] evdi: [I] (card5) Opened by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.020213] evdi: [I] (card5) Closed by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.059871] evdi: [I] (card2) Opened by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.059943] evdi: [I] (card2) Closed by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.060095] evdi: [I] (card3) Opened by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.060112] evdi: [I] (card3) Closed by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.060151] evdi: [I] (card4) Opened by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.060165] evdi: [I] (card4) Closed by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.060207] evdi: [I] (card5) Opened by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.060221] evdi: [I] (card5) Closed by Task 1996 (Xorg) of process 1996 (Xorg)
[ 12.484404] evdi: [I] (card2) Opened by Task 2006 (Xorg.wrap) of process 2006 (Xorg.wrap)
[ 12.484426] evdi: [I] (card2) Closed by Task 2006 (Xorg.wrap) of process 2006 (Xorg.wrap)
[ 12.484441] evdi: [I] (card3) Opened by Task 2006 (Xorg.wrap) of process 2006 (Xorg.wrap)
[ 12.484452] evdi: [I] (card3) Closed by Task 2006 (Xorg.wrap) of process 2006 (Xorg.wrap)
[ 12.484465] evdi: [I] (card4) Opened by Task 2006 (Xorg.wrap) of process 2006 (Xorg.wrap)
[ 12.484475] evdi: [I] (card4) Closed by Task 2006 (Xorg.wrap) of process 2006 (Xorg.wrap)
[ 12.484489] evdi: [I] (card5) Opened by Task 2006 (Xorg.wrap) of process 2006 (Xorg.wrap)
[ 12.484500] evdi: [I] (card5) Closed by Task 2006 (Xorg.wrap) of process 2006 (Xorg.wrap)
[ 12.505987] evdi: [I] (card2) Opened by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.506015] evdi: [I] (card2) Closed by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.506222] evdi: [I] (card3) Opened by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.506227] evdi: [I] (card3) Closed by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.506345] evdi: [I] (card4) Opened by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.506351] evdi: [I] (card4) Closed by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.506460] evdi: [I] (card5) Opened by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.506465] evdi: [I] (card5) Closed by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.546725] evdi: [I] (card2) Opened by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.546799] evdi: [I] (card2) Closed by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.546937] evdi: [I] (card3) Opened by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.546953] evdi: [I] (card3) Closed by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.546992] evdi: [I] (card4) Opened by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.547007] evdi: [I] (card4) Closed by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.547043] evdi: [I] (card5) Opened by Task 2006 (Xorg) of process 2006 (Xorg)
[ 12.547057] evdi: [I] (card5) Closed by Task 2006 (Xorg) of process 2006 (Xorg)
#
```
The reason for saying that is those entries just kept on multiplying over the course of my (many) attempts. They actually feel like something else is broken at the core of my Debian installation.
For those interested in knowing more:
```
# cat /var/log/Xorg.0.log
[ 12.488]
X.Org X Server 1.21.1.7
X Protocol Version 11, Revision 0
[ 12.488] Current Operating System: Linux MYBOX 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64
[ 12.488] Kernel command line: BOOT_IMAGE=/vmlinuz-6.1.0-30-amd64 root=/dev/mapper/backup-root ro quiet ipv6.disable=1
[ 12.488] xorg-server 2:21.1.7-3+deb12u8 (https://www.debian.org/support)
[ 12.488] Current version of pixman: 0.42.2
[ 12.488] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 12.488] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 12.488] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Jan 25 12:41:39 2025
[ 12.488] (==) Using config file: "/etc/X11/xorg.conf"
[ 12.488] (==) Using config directory: "/etc/X11/xorg.conf.d"
[ 12.488] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 12.488] (==) ServerLayout "layout"
[ 12.488] (**) |-->Screen "nvidia" (0)
[ 12.488] (**) | |-->Monitor "<default monitor>"
[ 12.488] (**) | |-->Device "nvidia"
[ 12.488] (**) | |-->GPUDevice "intel"
[ 12.488] (**) | |-->GPUDevice "Device0"
[ 12.488] (==) No monitor specified for screen "nvidia".
Using a default monitor configuration.
[ 12.488] (**) |-->Inactive Device "intel"
[ 12.488] (==) Automatically adding devices
[ 12.488] (==) Automatically enabling devices
[ 12.488] (==) Automatically adding GPU devices
[ 12.488] (==) Automatically binding GPU devices
[ 12.488] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 12.488] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[ 12.488] Entry deleted from font path.
[ 12.488] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[ 12.488] Entry deleted from font path.
[ 12.488] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[ 12.488] Entry deleted from font path.
[ 12.488] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[ 12.488] Entry deleted from font path.
[ 12.488] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[ 12.488] Entry deleted from font path.
[ 12.488] (==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/Type1,
built-ins
[ 12.488] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 12.488] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 12.488] (II) Loader magic: 0x559178df5f00
[ 12.488] (II) Module ABI versions:
[ 12.488] X.Org ANSI C Emulation: 0.4
[ 12.488] X.Org Video Driver: 25.2
[ 12.488] X.Org XInput driver : 24.4
[ 12.488] X.Org Server Extension : 10.0
[ 12.489] (++) using VT number 7
[ 12.489] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[ 12.491] (II) xfree86: Adding drm device (/dev/dri/card1)
[ 12.491] (II) Platform probe for /sys/devices/pci0000:00/0000:00:01.1/0000:01:00.0/drm/card1
[ 12.491] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 12.491] (II) Platform probe for /sys/devices/pci0000:00/0000:00:08.1/0000:74:00.0/drm/card0
[ 12.505] (II) xfree86: Adding drm device (/dev/dri/card2)
[ 12.505] (II) Platform probe for /sys/devices/platform/evdi.0/drm/card2
[ 12.505] (II) xfree86: Adding drm device (/dev/dri/card3)
[ 12.505] (II) Platform probe for /sys/devices/platform/evdi.1/drm/card3
[ 12.506] (II) xfree86: Adding drm device (/dev/dri/card4)
[ 12.506] (II) Platform probe for /sys/devices/platform/evdi.2/drm/card4
[ 12.506] (II) xfree86: Adding drm device (/dev/dri/card5)
[ 12.506] (II) Platform probe for /sys/devices/platform/evdi.3/drm/card5
[ 12.520] (--) PCI: (1@0:0:0) 10de:25ac:1043:184d rev 161, Mem @ 0xdc000000/16777216, 0x7c00000000/8589934592, 0x7e00000000/33554432, I/O @ 0x0000f000/128, BIOS @ 0x????????/524288
[ 12.520] (--) PCI:*(116@0:0:0) 1002:1681:1043:184d rev 10, Mem @ 0x7e40000000/268435456, 0x7e50000000/2097152, 0xdd900000/524288, I/O @ 0x0000e000/256
[ 12.520] (II) "glx" will be loaded. This was enabled by default and also specified in the config file.
[ 12.520] (II) LoadModule: "dbe"
[ 12.520] (II) Module "dbe" already built-in
[ 12.520] (II) LoadModule: "extmod"
[ 12.520] (II) Module "extmod" already built-in
[ 12.520] (II) LoadModule: "glx"
[ 12.520] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 12.521] (II) Module glx: vendor="X.Org Foundation"
[ 12.521] compiled for 1.21.1.7, module version = 1.0.0
[ 12.521] ABI class: X.Org Server Extension, version 10.0
[ 12.521] (II) LoadModule: "nvidia"
[ 12.521] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[ 12.521] (II) Module nvidia: vendor="NVIDIA Corporation"
[ 12.521] compiled for 1.6.99.901, module version = 1.0.0
[ 12.521] Module class: X.Org Video Driver
[ 12.521] (II) LoadModule: "modesetting"
[ 12.521] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 12.521] (II) Module modesetting: vendor="X.Org Foundation"
[ 12.521] compiled for 1.21.1.7, module version = 1.21.1
[ 12.521] Module class: X.Org Video Driver
[ 12.521] ABI class: X.Org Video Driver, version 25.2
[ 12.521] (II) NVIDIA dlloader X Driver 550.144.03 Mon Dec 30 17:11:29 UTC 2024
[ 12.521] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[ 12.521] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 12.521] (II) Loading sub module "fb"
[ 12.521] (II) LoadModule: "fb"
[ 12.521] (II) Module "fb" already built-in
[ 12.521] (II) Loading sub module "wfb"
[ 12.521] (II) LoadModule: "wfb"
[ 12.521] (II) Loading /usr/lib/xorg/modules/libwfb.so
[ 12.521] (II) Module wfb: vendor="X.Org Foundation"
[ 12.521] compiled for 1.21.1.7, module version = 1.0.0
[ 12.521] ABI class: X.Org ANSI C Emulation, version 0.4
[ 12.532] (II) modeset(G1): using drv /dev/dri/card0
[ 12.532] (WW) Falling back to old probe method for modesetting
[ 12.546] (II) modeset(G2): using drv /dev/dri/card2
[ 12.546] (II) modeset(G3): using drv /dev/dri/card3
[ 12.546] (II) modeset(G4): using drv /dev/dri/card4
[ 12.546] (II) modeset(G5): using drv /dev/dri/card5
[ 12.546] (EE) No devices detected.
[ 12.546] (EE)
Fatal server error:
[ 12.546] (EE) no screens found(EE)
[ 12.546] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 12.546] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 12.547] (EE)
[ 12.576] (EE) Server terminated with error (1). Closing log file.
#
```
```
# cat /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.26.0, UID=0 PID=2000
[+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/01_debian.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-slick-greeter.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/60-lightdm-autologin-greeter.conf
[+0.00s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf.d/lightdm-autologin-greeter.conf
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Registered seat module local
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Registered seat module unity
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)
[+0.00s] DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ‘gio-vfs’
[+0.00s] DEBUG: Monitoring logind for seats
[+0.00s] DEBUG: New seat added from logind: seat0
[+0.00s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.00s] DEBUG: Seat seat0 has property CanMultiSession=no
[+0.00s] DEBUG: Seat seat0: Starting
[+0.00s] DEBUG: Seat seat0: Creating greeter session
[+0.00s] DEBUG: Seat seat0: Creating display server of type x
[+0.01s] DEBUG: Using VT 7
[+0.01s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.01s] DEBUG: XServer 0: Logging to /var/log/lightdm/x-0.log
[+0.01s] DEBUG: XServer 0: Writing X server authority to /var/run/lightdm/root/:0
[+0.01s] DEBUG: XServer 0: Launching X Server
[+0.01s] DEBUG: Launching process 2006: /usr/bin/X :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.01s] DEBUG: XServer 0: Waiting for ready signal from X server :0
[+0.01s] WARNING: Could not enumerate user data directory /var/lib/lightdm/data: Error opening directory '/var/lib/lightdm/data': No such file or directory
[+0.01s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.01s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.11s] DEBUG: Process 2006 exited with return value 1
[+0.11s] DEBUG: XServer 0: X server stopped
[+0.11s] DEBUG: Releasing VT 7
[+0.11s] DEBUG: XServer 0: Removing X server authority /var/run/lightdm/root/:0
[+0.11s] DEBUG: Seat seat0: Display server stopped
[+0.11s] DEBUG: Seat seat0: Stopping session
[+0.11s] DEBUG: Seat seat0: Session stopped
[+0.11s] DEBUG: Seat seat0: Stopping display server, no sessions require it
[+0.11s] DEBUG: Seat seat0: Stopping; greeter display server failed to start
[+0.11s] DEBUG: Seat seat0: Stopping
[+0.11s] DEBUG: Seat seat0: Stopped
[+0.11s] DEBUG: Required seat has stopped
[+0.11s] DEBUG: Stopping display manager
[+0.11s] DEBUG: Display manager stopped
[+0.11s] DEBUG: Stopping daemon
[+0.11s] DEBUG: Exiting with return value 1
#
```
```
# uname -a
Linux MYBOX 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux
# apt update && apt upgrade -y
Get:1 file:/var/cuda-repo-debian12-12-4-local InRelease [1,572 B]
Get:1 file:/var/cuda-repo-debian12-12-4-local InRelease [1,572 B]
Hit:2 http://security.debian.org/debian-security bookworm-security InRelease
Hit:3 http://download.virtualbox.org/virtualbox/debian bookworm InRelease
Hit:4 http://debian.mirror.iweb.ca/debian bookworm InRelease
Get:5 http://debian.mirror.iweb.ca/debian bookworm-updates InRelease [55.4 kB]
Hit:8 https://www.synaptics.com/sites/default/files/Ubuntu stable InRelease
Get:9 https://repo.librewolf.net librewolf InRelease [27.1 kB]
Get:10 https://repo.librewolf.net librewolf/main amd64 Packages [9,522 B]
Get:11 https://repo.librewolf.net librewolf/main arm64 Packages [9,522 B]
Fetched 102 kB in 2s (65.1 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
# apt dist-upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
# apt full-upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
#
