Failed to start Light Display Manager and no sound after update on Cinnamon

Support
, , ,
1

Hello,

I’ve updated my system yesterday and after turning it on today I got “greeted” with a “Failed to start Light Display Manager.” message.

Running sudo lightdm manually does work and other than there’s no output sound device detected, everything else works normally.

The lightdm service is not running and if I try starting it I get the following:

journalctl -xeu lightdm.service

░░ 
░░ A start job for unit lightdm.service has begun execution.
░░ 
░░ The job identifier is 2677.
ago 31 08:33:16 fermin-e590 lightdm[2492]: Failed to use bus name org.freedesktop.DisplayManager, do you have appropriate permissions?
ago 31 08:33:16 fermin-e590 systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ An ExecStart= process belonging to unit lightdm.service has exited.
░░ 
░░ The process' exit code is 'exited' and its exit status is 1.
ago 31 08:33:16 fermin-e590 systemd[1]: lightdm.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ The unit lightdm.service has entered the 'failed' state with result 'exit-code'.
ago 31 08:33:16 fermin-e590 systemd[1]: Failed to start Light Display Manager.
░░ Subject: A start job for unit lightdm.service has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit lightdm.service has finished with a failure.
░░ 
░░ The job identifier is 2677 and the job result is failed.
ago 31 08:33:17 fermin-e590 systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 5.
░░ Subject: Automatic restarting of a unit has been scheduled
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ Automatic restarting of the unit lightdm.service has been scheduled, as the result for
░░ the configured Restart= setting for the unit.
ago 31 08:33:17 fermin-e590 systemd[1]: Stopped Light Display Manager.
░░ Subject: A stop job for unit lightdm.service has finished
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A stop job for unit lightdm.service has finished.
░░ 
░░ The job identifier is 2764 and the job result is done.
ago 31 08:33:17 fermin-e590 systemd[1]: lightdm.service: Start request repeated too quickly.
ago 31 08:33:17 fermin-e590 systemd[1]: lightdm.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ The unit lightdm.service has entered the 'failed' state with result 'exit-code'.
ago 31 08:33:17 fermin-e590 systemd[1]: Failed to start Light Display Manager.
░░ Subject: A start job for unit lightdm.service has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit lightdm.service has finished with a failure.
░░ 
░░ The job identifier is 2764 and the job result is failed.

inxi

System:
  Kernel: 5.10.60-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64 
  root=UUID=df7a105e-6ebc-4a94-bb06-ba9156e9161c rw quiet apparmor=1 
  security=apparmor resume=UUID=bd9d7dac-f62e-4ec5-bc1d-7a6957726858 
  udev.log_priority=3 
  Desktop: Cinnamon 5.0.5 tk: GTK 3.24.30 vt: 7 dm: LightDM 1.30.0 
  Distro: Manjaro Linux base: Arch Linux 
Machine:
  Type: Laptop System: LENOVO product: 20NB001SUS v: ThinkPad E590 
  serial: <filter> Chassis: type: 10 serial: <filter> 
  Mobo: LENOVO model: 20NB001SUS v: SDK0J40697 WIN serial: <filter> 
  UEFI: LENOVO v: R0YET36W (1.19 ) date: 10/21/2019 
Battery:
  ID-1: BAT0 charge: 31.1 Wh (81.0%) condition: 38.4/45.7 Wh (83.9%) 
  volts: 11.5 min: 11.1 model: Celxpert 01AV448 type: Li-poly serial: <filter> 
  status: Discharging cycles: 272 
  Device-1: hidpp_battery_0 model: Logitech Wireless Keyboard K330 
  serial: <filter> charge: 55% (should be ignored) rechargeable: yes 
  status: Discharging 
  Device-2: hidpp_battery_1 model: Logitech Wireless Mouse M560 
  serial: <filter> charge: 5% (should be ignored) rechargeable: yes 
  status: Discharging 
Memory:
  RAM: total: 15.35 GiB used: 3.91 GiB (25.5%) 
  RAM Report: permissions: Unable to run dmidecode. Root privileges required. 
CPU:
  Info: Quad Core model: Intel Core i7-8565U bits: 64 type: MT MCP 
  arch: Kaby Lake note: check family: 6 model-id: 8E (142) stepping: C (12) 
  microcode: EA cache: L2: 8 MiB bogomips: 32012 
  Speed: 700 MHz min/max: 400/4600 MHz Core speeds (MHz): 1: 700 2: 700 3: 700 
  4: 700 5: 700 6: 701 7: 700 8: 700 
  Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat arch_capabilities 
  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 ibrs_enhanced 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 pts rdrand rdseed rdtscp rep_good sdbg sep smap smep 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 status: Not affected 
  Type: mds status: Not affected 
  Type: meltdown status: Not affected 
  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: Enhanced IBRS, IBPB: conditional, RSB filling 
  Type: srbds mitigation: TSX disabled 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: Intel WhiskeyLake-U GT2 [UHD Graphics 620] vendor: Lenovo 
  driver: i915 v: kernel bus-ID: 00:02.0 chip-ID: 8086:3ea0 class-ID: 0300 
  Device-2: Acer SunplusIT Integrated Camera type: USB driver: uvcvideo 
  bus-ID: 1-6:4 chip-ID: 5986:2113 class-ID: 0e02 
  Display: x11 server: X.Org 1.20.13 driver: loaded: modesetting 
  alternate: fbdev,vesa display-ID: :0 screens: 1 
  Screen-1: 0 s-res: 4480x1440 s-dpi: 96 s-size: 1185x381mm (46.7x15.0") 
  s-diag: 1245mm (49") 
  Monitor-1: eDP-1 res: 1920x1080 hz: 60 dpi: 142 size: 344x194mm (13.5x7.6") 
  diag: 395mm (15.5") 
  Monitor-2: HDMI-1 res: 2560x1440 hz: 60 dpi: 124 
  size: 526x296mm (20.7x11.7") diag: 604mm (23.8") 
  OpenGL: renderer: Mesa Intel UHD Graphics 620 (WHL GT2) v: 4.6 Mesa 21.2.1 
  direct render: Yes 
Audio:
  Device-1: Intel Cannon Point-LP High Definition Audio vendor: Lenovo 
  driver: snd_hda_intel v: kernel alternate: snd_soc_skl,snd_sof_pci 
  bus-ID: 00:1f.3 chip-ID: 8086:9dc8 class-ID: 0403 
  Sound Server-1: ALSA v: k5.10.60-1-MANJARO running: yes 
  Sound Server-2: JACK v: 1.9.19 running: no 
  Sound Server-3: PulseAudio v: 15.0 running: no 
  Sound Server-4: PipeWire v: 0.3.33 running: no 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Lenovo driver: r8168 v: 8.049.02-NAPI modules: r8169 port: 2000 
  bus-ID: 04:00.0 chip-ID: 10ec:8168 class-ID: 0200 
  IF: enp4s0 state: down mac: <filter> 
  Device-2: Intel Wireless-AC 9260 driver: iwlwifi v: kernel port: 2000 
  bus-ID: 05:00.0 chip-ID: 8086:2526 class-ID: 0280 
  IF: wlp5s0 state: up mac: <filter> 
  IP v4: <filter> type: dynamic noprefixroute scope: global 
  broadcast: <filter> 
  IP v6: <filter> type: dynamic noprefixroute scope: global 
  IP v6: <filter> type: noprefixroute scope: link 
  IF-ID-1: docker0 state: down mac: <filter> 
  IP v4: <filter> scope: global broadcast: <filter> 
  WAN IP: <filter> 
Bluetooth:
  Message: No bluetooth data found. 
Logical:
  Message: No logical block device data found. 
RAID:
  Message: No RAID data found. 
Drives:
  Local Storage: total: 476.94 GiB used: 278.07 GiB (58.3%) 
  SMART Message: Required tool smartctl not installed. Check --recommends 
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Toshiba model: N/A 
  size: 476.94 GiB block-size: physical: 512 B logical: 512 B speed: 15.8 Gb/s 
  lanes: 2 type: SSD serial: <filter> rev: 0108ADLA temp: 30.9 C scheme: GPT 
  Message: No optical or floppy data found. 
Partition:
  ID-1: / raw-size: 459.75 GiB size: 451.53 GiB (98.21%) 
  used: 278.07 GiB (61.6%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2 
  label: N/A uuid: df7a105e-6ebc-4a94-bb06-ba9156e9161c 
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%) 
  used: 312 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 label: N/A 
  uuid: 4879-6B7A 
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) 
  ID-1: swap-1 type: partition size: 16.89 GiB used: 0 KiB (0.0%) priority: -2 
  dev: /dev/nvme0n1p3 maj-min: 259:3 label: N/A 
  uuid: bd9d7dac-f62e-4ec5-bc1d-7a6957726858 
Unmounted:
  Message: No unmounted partitions found. 
USB:
  Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 12 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Device-1: 1-1:2 info: Logitech Unifying Receiver type: Keyboard,Mouse,HID 
  driver: logitech-djreceiver,usbhid interfaces: 3 rev: 2.0 speed: 12 Mb/s 
  power: 98mA chip-ID: 046d:c52b class-ID: 0300 
  Device-2: 1-6:4 info: Acer SunplusIT Integrated Camera type: Video 
  driver: uvcvideo interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA 
  chip-ID: 5986:2113 class-ID: 0e02 
  Device-3: 1-8:5 info: Synaptics Metallica MOH Touch Fingerprint Reader 
  type: <vendor specific> driver: N/A interfaces: 1 rev: 2.0 speed: 12 Mb/s 
  power: 100mA chip-ID: 06cb:00a2 class-ID: ff00 serial: <filter> 
  Hub-2: 2-0:1 info: Full speed (or root) Hub ports: 6 rev: 3.1 speed: 10 Gb/s 
  chip-ID: 1d6b:0003 class-ID: 0900 
Sensors:
  System Temperatures: cpu: 44.0 C mobo: 0.0 C 
  Fan Speeds (RPM): cpu: 0 
Info:
  Processes: 279 Uptime: 17m wakeups: 10 Init: systemd v: 248 tool: systemctl 
  Compilers: gcc: 11.1.0 Packages: pacman: 1519 lib: 481 flatpak: 0 
  Shell: Bash v: 5.1.8 running-in: gnome-terminal inxi: 3.3.06
1 Like
2

For now, rolling back to kernel 5.4 fixes both issues

1 Like
3

I’ve marked this answer as the solution to your question as it is by far the best answer you’ll get.

However, if you disagree with my choice, please feel free to take any other answer as the solution to your question or even remove the solution altogether: You are in control! (If you disagree with my choice, just send me a personal message and explain why I shouldn’t have done this or :heart: or :+1: if you agree)

:innocent:
P.S. In the future, please don’t forget to come back to your question after your issue has been solved and click the 3 dots below the answer to mark a solution like this below the answer that helped you most:
Solution
so that the next person that has the exact same problem you just had will benefit from your post as well as your question will now be in the “solved” status.

1 Like
4

It looks that way yeah, maybe on the weekend I can further dig into this myself and come up with a better answer. Thanks!

1 Like
5

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