Unable to start X after upgrade

Just updated my computer, and now X doesn’t start for my normal user, but root is able to start it.
Have an X1 Carbon 6th gen, using Gnome and GDM.
Checked that there’s no missing updates, and tried a different kernel. As I’m able run startx as root, there’s probably something with my configuration, but I don’t know where to start. Haven’t done any manual configuration that i can think of.
I’m not allowed to attach media here, so it’s difficult to give better information… I get “Oh no! something has gone wrong”. In journalctl, i see GDM has actually core dumped. Corgi log says failed to load fbdev and vesa.

Welcome to the forum! :wave:

Please post your system info as outlined here:

Any tips on how to best do this when the computer doesn’t have a graphical environment? I bet the forums doesn’t work well with a text based browser without ja.

Boot with a live USB if available, then you would have a graphical environment.

That didn’t work very well. Booting from live USB, get
Mount: /run/miso/SFS/livefs: can’t read superblock on /dev/loop0

And it drops me to a root shell.

System:
  Kernel: 5.15.6-2-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-5.15-x86_64
    root=UUID=25d18b48-351c-4930-b54a-a9c71ea32520 rw quiet
    cryptdevice=UUID=95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf:luks-95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf
    root=/dev/mapper/luks-95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf
    resume=/dev/mapper/luks-95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf
  Console: tty 3 DM: GDM 41.0, LightDM 1.30.0 Distro: Manjaro Linux
    base: Arch Linux
Machine:
  Type: Laptop System: LENOVO product: 20KGS95J00 v: ThinkPad X1 Carbon 6th
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: LENOVO model: 20KGS95J00 v: SDK0J40697 WIN
    serial: <superuser required> UEFI: LENOVO v: N23ET71W (1.46 )
    date: 02/20/2020
Battery:
  ID-1: BAT0 charge: 50.2 Wh (100.0%) condition: 50.2/57.0 Wh (88.1%)
    volts: 12.9 min: 11.6 model: LGC 01AV494 type: Li-poly serial: <filter>
    status: N/A cycles: 258
Memory:
  RAM: total: 15.38 GiB used: 794.7 MiB (5.0%)
  RAM Report:
    permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: Intel Core i7-8650U bits: 64 type: MT MCP arch: Coffee Lake
    family: 6 model-id: 0x8E (142) stepping: 0xA (10) microcode: 0xEA
  Topology: cpus: 1x cores: 4 tpc: 2 threads: 8 smt: enabled cache:
    L1: 256 KiB desc: d-4x32 KiB; i-4x32 KiB L2: 1024 KiB desc: 4x256 KiB
    L3: 8 MiB desc: 1x8 MiB
  Speed (MHz): avg: 4122 high: 4201 min/max: 400/4200 scaling:
    driver: intel_pstate governor: powersave cores: 1: 4201 2: 4188 3: 3902
    4: 4201 5: 4198 6: 4044 7: 4046 8: 4200 bogomips: 33615
  Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat arch_perfmon
    art avx avx2 bmi1 bmi2 bts clflush clflushopt cmov constant_tsc cpuid
    cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts epb ept ept_ad erms est
    f16c flexpriority flush_l1d fma fpu fsgsbase fxsr ht hwp hwp_act_window
    hwp_epp hwp_notify ibpb ibrs ida intel_pt invpcid invpcid_single lahf_lm
    lm mca mce md_clear mmx monitor movbe mpx msr mtrr nonstop_tsc nopl nx pae
    pat pbe pcid pclmulqdq pdcm pdpe1gb pebs pge pln pni popcnt pse pse36 pti
    pts rdrand rdseed rdtscp rep_good sdbg sep sgx smap smep smx ss ssbd sse
    sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow tsc tsc_adjust
    tsc_deadline_timer vme vmx vnmi vpid x2apic xgetbv1 xsave xsavec xsaveopt
    xsaves xtopology xtpr
  Vulnerabilities:
  Type: itlb_multihit status: KVM: VMX disabled
  Type: l1tf
    mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable
  Type: meltdown mitigation: PTI
  Type: spec_store_bypass
    mitigation: Speculative Store Bypass disabled via prctl and seccomp
  Type: spectre_v1
    mitigation: usercopy/swapgs barriers and __user pointer sanitization
  Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
    IBRS_FW, STIBP: conditional, RSB filling
  Type: srbds mitigation: Microcode
  Type: tsx_async_abort mitigation: TSX disabled
Graphics:
  Device-1: Intel UHD Graphics 620 vendor: Lenovo driver: i915 v: kernel
    bus-ID: 00:02.0 chip-ID: 8086:5917 class-ID: 0300
  Device-2: Acer Integrated Camera type: USB driver: uvcvideo bus-ID: 1-8:4
    chip-ID: 5986:2115 class-ID: 0e02
  Display: server: X.org 1.21.1.1 compositor: gnome-shell driver:
    loaded: modesetting alternate: fbdev,vesa tty: 160x45
  Message: Unable to show advanced data. Required tool glxinfo missing.
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Lenovo
    driver: snd_hda_intel v: kernel alternate: snd_soc_skl bus-ID: 00:1f.3
    chip-ID: 8086:9d71 class-ID: 0403
  Sound Server-1: ALSA v: k5.15.6-2-MANJARO running: yes
  Sound Server-2: JACK v: 1.9.19 running: no
  Sound Server-3: PulseAudio v: 15.0 running: yes
  Sound Server-4: PipeWire v: 0.3.40 running: no
Network:
  Device-1: Intel Ethernet I219-LM vendor: Lenovo driver: e1000e v: kernel
    port: N/A bus-ID: 00:1f.6 chip-ID: 8086:15d7 class-ID: 0200
  IF: enp0s31f6 state: down mac: <filter>
  Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi v: kernel
    bus-ID: 02:00.0 chip-ID: 8086:24fd class-ID: 0280
  IF: wlp2s0 state: up mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: noprefixroute scope: link
  WAN IP: <filter>
Bluetooth:
  Message: No bluetooth data found.
Logical:
  Message: No logical block device data found.
  Device-1: luks-95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf maj-min: 254:0
    type: LUKS dm: dm-0 size: 370.59 GiB
  Components:
  p-1: nvme0n1p6 maj-min: 259:6 size: 370.59 GiB
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 477.92 GiB used: 202.59 GiB (42.4%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung
    model: MZVLB512HAJQ-000L7 size: 476.94 GiB block-size: physical: 512 B
    logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
    rev: 5L2QEXA7 temp: 32.9 C scheme: GPT
  ID-2: /dev/sda maj-min: 8:0 type: USB model: CBM USB 2.0 size: 1006 MiB
    block-size: physical: 512 B logical: 512 B type: N/A serial: <filter>
    rev: 2.10 scheme: MBR
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 370.59 GiB size: 363.78 GiB (98.16%)
    used: 202.56 GiB (55.7%) fs: ext4 dev: /dev/dm-0 maj-min: 254:0
    mapped: luks-95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf label: N/A
    uuid: 25d18b48-351c-4930-b54a-a9c71ea32520
  ID-2: /boot/efi raw-size: 100 MiB size: 96 MiB (96.00%)
    used: 25.2 MiB (26.3%) fs: vfat dev: /dev/nvme0n1p2 maj-min: 259:2
    label: N/A uuid: 5893-67D8
Swap:
  Alert: No swap data was found.
Unmounted:
  ID-1: /dev/nvme0n1p1 maj-min: 259:1 size: 499 MiB fs: ntfs label: Recovery
    uuid: 5E14927514924FBF
  ID-2: /dev/nvme0n1p3 maj-min: 259:3 size: 16 MiB fs: <superuser required>
    label: N/A uuid: N/A
  ID-3: /dev/nvme0n1p4 maj-min: 259:4 size: 105.24 GiB fs: ntfs label: N/A
    uuid: B60095370094FF93
  ID-4: /dev/nvme0n1p5 maj-min: 259:5 size: 512 MiB fs: vfat label: N/A
    uuid: 97D5-E7A9
  ID-5: /dev/sda1 maj-min: 8:1 size: 1006 MiB fs: iso9660
USB:
  Hub-1: 1-0:1 info: Hi-speed hub with single TT ports: 12 rev: 2.0
    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Device-1: 1-1:6 info: CBM USB 2.0 type: Mass Storage driver: usb-storage
    interfaces: 1 rev: 2.0 speed: 480 Mb/s power: 100mA chip-ID: 2008:2018
    class-ID: 0806 serial: <filter>
  Device-2: 1-8:4 info: Acer Integrated Camera type: Video driver: uvcvideo
    interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA chip-ID: 5986:2115
    class-ID: 0e02
  Device-3: 1-9:5 info: Synaptics Metallica MIS Touch Fingerprint Reader
    type: <vendor specific> driver: N/A interfaces: 1 rev: 2.0 speed: 12 Mb/s
    power: 100mA chip-ID: 06cb:009a class-ID: ff00 serial: <filter>
  Hub-2: 2-0:1 info: Super-speed hub ports: 6 rev: 3.0 speed: 5 Gb/s
    chip-ID: 1d6b:0003 class-ID: 0900
  Device-1: 2-3:2 info: Realtek USB3.0-CRW type: Mass Storage
    driver: usb-storage interfaces: 1 rev: 3.0 speed: 5 Gb/s power: 800mA
    chip-ID: 0bda:0328 class-ID: 0806 serial: <filter>
Sensors:
  System Temperatures: cpu: 38.0 C pch: 37.5 C mobo: N/A
  Fan Speeds (RPM): fan-1: 0
Info:
  Processes: 220 Uptime: 5m wakeups: 4 Init: systemd v: 249 tool: systemctl
  Compilers: gcc: 11.1.0 clang: 13.0.0 Packages: 1826 guix-sys: 0 guix-usr: 28
  pacman: 1798 lib: 484 flatpak: 0 Shell: Bash (login) v: 5.1.12
  running-in: tty 3 inxi: 3.3.10
Dec 15 22:25:21 simendsjo-laptop systemd-logind[444]: New session 9 of user gdm.
Dec 15 22:25:21 simendsjo-laptop systemd[1]: Started Session 9 of User gdm.
Dec 15 22:25:21 simendsjo-laptop gdm-launch-environment][2809]: pam_env(gdm-launch-environment:session): deprecated reading of user environment enabled
Dec 15 22:25:21 simendsjo-laptop audit[2809]: USER_START pid=2809 uid=0 auid=120 ses=9 msg='op=PAM:session_open grantors=pam_loginuid,pam_keyinit,pam_succeed_if,pam_permit,pam_systemd,pam_env acct="gdm" exe="/usr/lib/gdm-session-worker" hostname=simendsjo-laptop addr=? terminal=/dev/tty1 res=success'
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: _XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: _XSERVTransMakeAllCOTSServerListeners: server already running
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (--) Log file renamed from "/var/lib/gdm/.local/share/xorg/Xorg.pid-2820.log" to "/var/lib/gdm/.local/share/xorg/Xorg.1.log"
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: This is a pre-release version of the X server from The X.Org Foundation.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: It is not supported in any way.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: Select the "xorg" product for bugs you find in this release.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: Before reporting bugs in pre-release versions please check the
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: latest version in the X.Org Foundation git repository.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: See http://wiki.x.org/wiki/GitPage for git access instructions.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: X.Org X Server 1.21.1.1
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: X Protocol Version 11, Revision 0
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: Current Operating System: Linux simendsjo-laptop 5.15.6-2-MANJARO #1 SMP PREEMPT Sat Dec 4 11:11:58 UTC 2021 x86_64
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.15-x86_64 root=UUID=25d18b48-351c-4930-b54a-a9c71ea32520 rw quiet cryptdevice=UUID=95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf:luks-95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf root=/dev/mapper/luks-95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf resume=/dev/mapper/luks-95c7ffac-c92e-49e4-bb1b-e17b7eaf81bf
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:  
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: Current version of pixman: 0.40.0
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         Before reporting problems, check http://wiki.x.org
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         to make sure that you have the latest version.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: Markers: (--) probed, (**) from config file, (==) default setting,
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         (++) from command line, (!!) notice, (II) informational,
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Log file: "/var/lib/gdm/.local/share/xorg/Xorg.1.log", Time: Wed Dec 15 22:25:21 2021
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Using config directory: "/etc/X11/xorg.conf.d"
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Using system config directory "/usr/share/X11/xorg.conf.d"
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) No Layout section.  Using the first Screen section.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) No screen section available. Using defaults.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (**) |-->Screen "Default Screen Section" (0)
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (**) |   |-->Monitor "<default monitor>"
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) No monitor specified for screen "Default Screen Section".
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         Using a default monitor configuration.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Automatically adding devices
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Automatically enabling devices
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Automatically adding GPU devices
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Automatically binding GPU devices
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Max clients allowed: 256, resource mask: 0x1fffff
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (WW) The directory "/usr/share/fonts/OTF" does not exist.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         Entry deleted from font path.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (WW) The directory "/usr/share/fonts/Type1" does not exist.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         Entry deleted from font path.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) FontPath set to:
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         /usr/share/fonts/misc,
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         /usr/share/fonts/TTF,
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         /usr/share/fonts/100dpi,
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         /usr/share/fonts/75dpi
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) ModulePath set to "/usr/lib/xorg/modules"
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) The server relies on udev to provide the list of input devices.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         If no devices become available, reconfigure udev or disable AutoAddDevices.
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) Module ABI versions:
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         X.Org ANSI C Emulation: 0.4
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         X.Org Video Driver: 25.2
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         X.Org XInput driver : 24.4
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         X.Org Server Extension : 10.0
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (++) using VT number 1
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) systemd-logind: took control of session /org/freedesktop/login1/session/_39
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) xfree86: Adding drm device (/dev/dri/card0)
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) Platform probe for /sys/devices/pci0000:00/0000:00:02.0/drm/card0
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 13 paused 0
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (--) PCI:*(0@0:2:0) 8086:5917:17aa:225c rev 7, Mem @ 0x2ffa000000/16777216, 0xb0000000/268435456, I/O @ 0x0000e000/64, BIOS @ 0x????????/131072
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) LoadModule: "glx"
Dec 15 22:25:21 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) Module glx: vendor="X.Org Foundation"
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         compiled for 1.21.1.1, module version = 1.0.0
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         ABI class: X.Org Server Extension, version 10.0
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Matched modesetting as autoconfigured driver 0
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Matched fbdev as autoconfigured driver 1
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Matched vesa as autoconfigured driver 2
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (==) Assigned the driver to the xf86ConfigLayout
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) LoadModule: "modesetting"
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) Module modesetting: vendor="X.Org Foundation"
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         compiled for 1.21.1.1, module version = 1.21.1
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         Module class: X.Org Video Driver
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]:         ABI class: X.Org Video Driver, version 25.2
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) LoadModule: "fbdev"
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (WW) Warning, couldn't open module fbdev
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (EE) Failed to load module "fbdev" (module does not exist, 0)
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) LoadModule: "vesa"
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (WW) Warning, couldn't open module vesa
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (EE) Failed to load module "vesa" (module does not exist, 0)
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (II) modesetting: Driver for Modesetting Kernel Drivers: kms
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (WW) xf86OpenConsole: VT_ACTIVATE failed: Operation not permitted
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (EE)
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: Fatal server error:
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (EE) xf86OpenConsole: Switching VT failed
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (EE)
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (EE)
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: Please consult the The X.Org Foundation support
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]:          at http://wiki.x.org
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]:  for help.
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (EE) Please also check the log file at "/var/lib/gdm/.local/share/xorg/Xorg.1.log" for additional information.
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (EE)
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (WW) xf86CloseConsole: KDSETMODE failed: Operation not permitted
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (WW) xf86CloseConsole: VT_SETMODE failed: Operation not permitted
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2820]: (EE) Server terminated with error (1). Closing log file.
Dec 15 22:25:22 simendsjo-laptop /usr/lib/gdm-x-session[2818]: Unable to run X server
Dec 15 22:25:22 simendsjo-laptop audit[2809]: USER_END pid=2809 uid=0 auid=120 ses=9 msg='op=PAM:session_close grantors=pam_loginuid,pam_keyinit,pam_succeed_if,pam_permit,pam_systemd,pam_env acct="gdm" exe="/usr/lib/gdm-session-worker" hostname=simendsjo-laptop addr=? terminal=/dev/tty1 res=success'
Dec 15 22:25:22 simendsjo-laptop audit[2809]: CRED_DISP pid=2809 uid=0 auid=120 ses=9 msg='op=PAM:setcred grantors=pam_permit acct="gdm" exe="/usr/lib/gdm-session-worker" hostname=simendsjo-laptop addr=? terminal=/dev/tty1 res=success'
Dec 15 22:25:22 simendsjo-laptop gdm[2787]: Gdm: GdmDisplay: Session never registered, failing
Dec 15 22:25:22 simendsjo-laptop audit[2787]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 pid=2787 comm="gdm" exe="/usr/bin/gdm" sig=11 res=1
Dec 15 22:25:22 simendsjo-laptop gdm-launch-environment][2809]: GLib-GObject: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
Dec 15 22:25:22 simendsjo-laptop systemd[1]: session-9.scope: Deactivated successfully.
Dec 15 22:25:22 simendsjo-laptop systemd-logind[444]: Session 9 logged out. Waiting for processes to exit.
Dec 15 22:25:22 simendsjo-laptop systemd-logind[444]: Removed session 9.
Dec 15 22:25:22 simendsjo-laptop audit: BPF prog-id=74 op=LOAD
Dec 15 22:25:22 simendsjo-laptop audit: BPF prog-id=75 op=LOAD
Dec 15 22:25:22 simendsjo-laptop audit: BPF prog-id=76 op=LOAD
Dec 15 22:25:22 simendsjo-laptop systemd[1]: Started Process Core Dump (PID 2829/UID 0).
Dec 15 22:25:22 simendsjo-laptop audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@14-2829-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Dec 15 22:25:22 simendsjo-laptop systemd-coredump[2830]: Process 2787 (gdm) of user 0 dumped core.
                                                         
                                                         Found module linux-vdso.so.1 with build-id: fc0932250ec82a533fb89adf1ab0c5e4209ea233
                                                         Found module libblkid.so.1 with build-id: f03a24e92c9852272bd0049b5bcb7ed6cf0e664f
                                                         Found module libdl.so.2 with build-id: 5abc547e7b0949f89f3c0e21ab0c8331a7440a8a
                                                         Found module libgpg-error.so.0 with build-id: 3801187d42c4955bd93c605451430cdf1b164e63
                                                         Found module libcrypt.so.2 with build-id: 3743451bdaf36f951f926927633fd964813025d0
                                                         Found module libresolv.so.2 with build-id: c915c72668282861a813f7ea3c0780f37b681dc0
                                                         Found module libmount.so.1 with build-id: ff9a1d99d35cf640d0bfdaba294854372672c29b
                                                         Found module libz.so.1 with build-id: 81bf6e728a6d6f5b105b0f8b25f6c614ce10452a
                                                         Found module libgmodule-2.0.so.0 with build-id: 34cabbd12d9baf397a0255f174e4c96165bc329b
                                                         Found module libpcre.so.1 with build-id: 845483dd0acba86de9f0313102bebbaf3ce52767
                                                         Found module libffi.so.8 with build-id: f90d8b734f6de9b25faedb8cbfab7054dafc0a42
                                                         Found module ld-linux-x86-64.so.2 with build-id: 040cc3dd10461562f177df39e3be2f3704258c3c
                                                         Found module libpthread.so.0 with build-id: 07c8f95b4f3251d08550217ad8a1f31066229996
                                                         Found module libgcc_s.so.1 with build-id: 7f8508bb914546ada778809b64b99d234337d835
                                                         Found module libgcrypt.so.20 with build-id: db45f5d5e0f7af1e77324fea1885f974619ad268
                                                         Found module libcap.so.2 with build-id: 7ab63cdf1c7435ae6910ccd518a92dc4f6a9b5b6
                                                         Found module liblz4.so.1 with build-id: e63600ab23b2f6997f42fac2fa56e1f02ce159a1
                                                         Found module libzstd.so.1 with build-id: 4b10444c1560ebc574af4d5f488b7408b22d450e
                                                         Found module liblzma.so.5 with build-id: 8b615460aa230708c5183f16bede67aa0437d95e
                                                         Found module librt.so.1 with build-id: 75484da2d6f1515189eefa076e0a40328834cd16
                                                         Found module libc.so.6 with build-id: 4b406737057708c0e4c642345a703c47a61c73dc
                                                         Found module libXdmcp.so.6 with build-id: 8ca0792d23c8b8b4c0864297512349292bea5955
                                                         Found module libxcb.so.1 with build-id: 0d1ef11740a5daad2ee331e812a51aa6574af222
                                                         Found module libXau.so.6 with build-id: 1c67764663e07bec24d8951e5fd93f4d165979ff
                                                         Found module libaccountsservice.so.0 with build-id: 5bfca519b352299477ede946dd43ef190721bab7
                                                         Found module libgio-2.0.so.0 with build-id: b3348994e4d526d182becc32821aa3dbe9797149
                                                         Found module libglib-2.0.so.0 with build-id: d4aa102e545015a506c3ee06398676b70f65bcbc
                                                         Found module libgobject-2.0.so.0 with build-id: 3e451709a0a5772b9550d3a4c28dcb37a87028fa
                                                         Found module libsystemd.so.0 with build-id: 65e1ee509d2099c477c39e7af6a539f1a5c1072d
                                                         Found module gdm with build-id: 262a90343fa1c4c4cb83374cf2d14ba1c4c68bb0
                                                         Stack trace of thread 2787:
                                                         #0  0x0000557b4cd0194c n/a (gdm + 0x2094c)
                                                         #1  0x0000557b4cd0259d n/a (gdm + 0x2159d)
                                                         #2  0x00007ff9077cdd8f g_closure_invoke (libgobject-2.0.so.0 + 0x12d8f)
                                                         #3  0x00007ff9077e9718 n/a (libgobject-2.0.so.0 + 0x2e718)
                                                         #4  0x00007ff9077eadd9 g_signal_emit_valist (libgobject-2.0.so.0 + 0x2fdd9)
                                                         #5  0x00007ff9077eb330 g_signal_emit (libgobject-2.0.so.0 + 0x30330)
                                                         #6  0x00007ff9077d5266 n/a (libgobject-2.0.so.0 + 0x1a266)
                                                         #7  0x00007ff9077dd052 g_object_notify (libgobject-2.0.so.0 + 0x22052)
                                                         #8  0x0000557b4cd00842 n/a (gdm + 0x1f842)
                                                         #9  0x00007ff9077cdd8f g_closure_invoke (libgobject-2.0.so.0 + 0x12d8f)
                                                         #10 0x00007ff9077e9718 n/a (libgobject-2.0.so.0 + 0x2e718)
                                                         #11 0x00007ff9077eadd9 g_signal_emit_valist (libgobject-2.0.so.0 + 0x2fdd9)
                                                         #12 0x00007ff9077eb330 g_signal_emit (libgobject-2.0.so.0 + 0x30330)
                                                         #13 0x00007ff9077cdd8f g_closure_invoke (libgobject-2.0.so.0 + 0x12d8f)
                                                         #14 0x00007ff9077e9718 n/a (libgobject-2.0.so.0 + 0x2e718)
                                                         #15 0x00007ff9077eadd9 g_signal_emit_valist (libgobject-2.0.so.0 + 0x2fdd9)
                                                         #16 0x00007ff9077eb330 g_signal_emit (libgobject-2.0.so.0 + 0x30330)
                                                         #17 0x00007ff906f81d4a n/a (libffi.so.8 + 0x6d4a)
                                                         #18 0x00007ff906f81267 n/a (libffi.so.8 + 0x6267)
                                                         #19 0x00007ff9077d3b2e g_cclosure_marshal_generic (libgobject-2.0.so.0 + 0x18b2e)
                                                         #20 0x00007ff9077cdd8f g_closure_invoke (libgobject-2.0.so.0 + 0x12d8f)
                                                         #21 0x00007ff9077e9718 n/a (libgobject-2.0.so.0 + 0x2e718)
                                                         #22 0x0000557b4ccf8bc4 n/a (gdm + 0x17bc4)
                                                         #23 0x00007ff9077cdd8f g_closure_invoke (libgobject-2.0.so.0 + 0x12d8f)
                                                         #24 0x00007ff9077e90ee n/a (libgobject-2.0.so.0 + 0x2e0ee)
                                                         #25 0x00007ff9077eadd9 g_signal_emit_valist (libgobject-2.0.so.0 + 0x2fdd9)
                                                         #26 0x00007ff9077eb330 g_signal_emit (libgobject-2.0.so.0 + 0x30330)
                                                         #27 0x00007ff9075cb2f5 n/a (libgio-2.0.so.0 + 0x1062f5)
                                                         #28 0x00007ff9075b8674 n/a (libgio-2.0.so.0 + 0xf3674)
                                                         #29 0x00007ff9076d93e5 g_main_context_dispatch (libglib-2.0.so.0 + 0x543e5)
                                                         #30 0x00007ff90772d799 n/a (libglib-2.0.so.0 + 0xa8799)
                                                         #31 0x00007ff9076d8a63 g_main_loop_run (libglib-2.0.so.0 + 0x53a63)
                                                         #32 0x0000557b4ccef4fd n/a (gdm + 0xe4fd)
                                                         #33 0x00007ff90729ab25 __libc_start_main (libc.so.6 + 0x27b25)
                                                         #34 0x0000557b4ccef81e n/a (gdm + 0xe81e)
                                                         
                                                         Stack trace of thread 2793:
                                                         #0  0x00007ff907366b2f __poll (libc.so.6 + 0xf3b2f)
                                                         #1  0x00007ff90772d729 n/a (libglib-2.0.so.0 + 0xa8729)
                                                         #2  0x00007ff9076d6bc1 g_main_context_iteration (libglib-2.0.so.0 + 0x51bc1)
                                                         #3  0x00007ff9076d6c12 n/a (libglib-2.0.so.0 + 0x51c12)
                                                         #4  0x00007ff907707ce1 n/a (libglib-2.0.so.0 + 0x82ce1)
                                                         #5  0x00007ff906f90259 start_thread (libpthread.so.0 + 0x9259)
                                                         #6  0x00007ff9073715e3 __clone (libc.so.6 + 0xfe5e3)
                                                         
                                                         Stack trace of thread 2797:
                                                         #0  0x00007ff907366b2f __poll (libc.so.6 + 0xf3b2f)
                                                         #1  0x00007ff90772d729 n/a (libglib-2.0.so.0 + 0xa8729)
                                                         #2  0x00007ff9076d8a63 g_main_loop_run (libglib-2.0.so.0 + 0x53a63)
                                                         #3  0x00007ff9075c8268 n/a (libgio-2.0.so.0 + 0x103268)
                                                         #4  0x00007ff907707ce1 n/a (libglib-2.0.so.0 + 0x82ce1)
                                                         #5  0x00007ff906f90259 start_thread (libpthread.so.0 + 0x9259)
                                                         #6  0x00007ff9073715e3 __clone (libc.so.6 + 0xfe5e3)
                                                         
                                                         Stack trace of thread 2813:
                                                         #0  0x00007ff90736c18d syscall (libc.so.6 + 0xf918d)
                                                         #1  0x00007ff907727bbb g_cond_wait_until (libglib-2.0.so.0 + 0xa2bbb)
                                                         #2  0x00007ff9076a87d3 n/a (libglib-2.0.so.0 + 0x237d3)
                                                         #3  0x00007ff90770aa1b n/a (libglib-2.0.so.0 + 0x85a1b)
                                                         #4  0x00007ff907707ce1 n/a (libglib-2.0.so.0 + 0x82ce1)
                                                         #5  0x00007ff906f90259 start_thread (libpthread.so.0 + 0x9259)
                                                         #6  0x00007ff9073715e3 __clone (libc.so.6 + 0xfe5e3)
Dec 15 22:25:22 simendsjo-laptop systemd[1]: gdm.service: Main process exited, code=dumped, status=11/SEGV
Dec 15 22:25:22 simendsjo-laptop audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=gdm comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=failed'
Dec 15 22:25:22 simendsjo-laptop audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@14-2829-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Dec 15 22:25:22 simendsjo-laptop systemd[1]: gdm.service: Failed with result 'core-dump'.
Dec 15 22:25:22 simendsjo-laptop systemd[1]: systemd-coredump@14-2829-0.service: Deactivated successfully.
Dec 15 22:25:22 simendsjo-laptop audit: BPF prog-id=0 op=UNLOAD
Dec 15 22:25:22 simendsjo-laptop audit: BPF prog-id=0 op=UNLOAD
Dec 15 22:25:22 simendsjo-laptop audit: BPF prog-id=0 op=UNLOAD
Dec 15 22:25:22 simendsjo-laptop dropbox.desktop[2823]: dropbox: load fq extension '/home/simendsjo/.dropbox-dist/dropbox-lnx.x86_64-136.4.4345/cryptography.hazmat.bindings._openssl.cpython-38-x86_64-linux-gnu.so'
Dec 15 22:25:22 simendsjo-laptop dropbox.desktop[2823]: dropbox: load fq extension '/home/simendsjo/.dropbox-dist/dropbox-lnx.x86_64-136.4.4345/cryptography.hazmat.bindings._padding.cpython-38-x86_64-linux-gnu.so'
Dec 15 22:25:22 simendsjo-laptop dropbox.desktop[2823]: dropbox: load fq extension '/home/simendsjo/.dropbox-dist/dropbox-lnx.x86_64-136.4.4345/psutil._psutil_linux.cpython-38-x86_64-linux-gnu.so'
Dec 15 22:25:22 simendsjo-laptop dropbox.desktop[2823]: dropbox: load fq extension '/home/simendsjo/.dropbox-dist/dropbox-lnx.x86_64-136.4.4345/psutil._psutil_posix.cpython-38-x86_64-linux-gnu.so'
Dec 15 22:25:22 simendsjo-laptop dropbox.desktop[2823]: dropbox: load fq extension '/home/simendsjo/.dropbox-dist/dropbox-lnx.x86_64-136.4.4345/apex._apex.cpython-38-x86_64-linux-gnu.so'
Dec 15 22:25:22 simendsjo-laptop systemd[1]: gdm.service: Scheduled restart job, restart counter is at 4.
Dec 15 22:25:22 simendsjo-laptop systemd[1]: Stopped GNOME Display Manager.

The Gnome installation media worked, but I couldn’t get KDE to work (“can’t read superblock”). Tried three different USB sticks, so that wasn’t the problem either.