Backlight issue somehow stops the loading of Manjaro

I was wondering if any one of you have ever had a backlight issue before which stops Manjaro from loading completely. Every now and then when I boot up my screen just stays black and displays:

[FAILED] Failed to start Light Display Manager
[FAILED] Failed to start Load/Save Screen Backlight Brightness of backlight:acpi_video0
[FAILED] Failed to start Load/Save Screen Backlight Brightness of backlight:amdgpu_b10

When this happens I need to do a force shutdown to try again. It doesn’t happen all the time (maybe 3x a week) but it’s like playing russian roulette for me.

Could it be that it’s looking for something that doesn’t exist? Just a guess.

I’m using a Cinnamon 20.2 with the 5.9.16-1 kernel (5.10 won’t boot at all). I bought my laptop just last year and is an ASUS Zenbook with a R7 processor.

Here is info on my system:

  Kernel: 5.9.16-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.1 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.9-x86_64 
  root=UUID=42a788d1-3fe8-4602-8fcf-4e18283760d9 rw quiet apparmor=1 
  security=apparmor udev.log_priority=3 
  Desktop: Cinnamon 4.8.6 tk: GTK 3.24.24 dm: LightDM 1.30.0 
  Distro: Manjaro Linux 
  Type: Laptop System: ASUSTeK product: ZenBook UX434DA_UM433DA v: 1.0 
  serial: <filter> 
  Mobo: ASUSTeK model: UX434DA v: 1.0 serial: <filter> 
  UEFI: American Megatrends v: UX434DA_UM433DA.301 date: 08/02/2019 
  ID-1: BAT0 charge: 17.5 Wh condition: 44.2/50.0 Wh (88%) volts: 11.9/11.9 
  model: ASUSTeK ASUS Battery type: Li-ion serial: N/A status: Discharging 
  cycles: 622 
  RAM: total: 13.68 GiB used: 2.54 GiB (18.6%) 
  RAM Report: permissions: Unable to run dmidecode. Root privileges required. 
  Info: Quad Core model: AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx 
  bits: 64 type: MT MCP arch: Zen/Zen+ note: check family: 17 (23) 
  model-id: 18 (24) stepping: 1 microcode: 8108109 L2 cache: 2 MiB 
  bogomips: 36738 
  Speed: 1221 MHz min/max: 1400/2300 MHz boost: enabled Core speeds (MHz): 
  1: 1221 2: 1220 3: 1221 4: 1221 5: 1218 6: 1223 7: 1222 8: 1221 
  Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1 
  bmi2 bpext clflush clflushopt clzero cmov cmp_legacy constant_tsc cpb cpuid 
  cr8_legacy cx16 cx8 de decodeassists extapic extd_apicid f16c flushbyasid 
  fma fpu fsgsbase fxsr fxsr_opt ht hw_pstate ibpb irperf lahf_lm lbrv lm mca 
  mce misalignsse mmx mmxext monitor movbe msr mtrr mwaitx nonstop_tsc nopl 
  npt nrip_save nx osvw overflow_recov pae pat pausefilter pclmulqdq pdpe1gb 
  perfctr_core perfctr_llc perfctr_nb pfthreshold pge pni popcnt pse pse36 
  rdrand rdseed rdtscp rep_good sep sev sha_ni skinit smap smca sme smep ssbd 
  sse sse2 sse4_1 sse4_2 sse4a ssse3 succor svm svm_lock syscall tce topoext 
  tsc tsc_scale v_vmsave_vmload vgif vmcb_clean vme vmmcall wdt xgetbv1 xsave 
  xsavec xsaveerptr xsaveopt xsaves 
  Vulnerabilities: Type: itlb_multihit status: Not affected 
  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: Full AMD retpoline, IBPB: conditional, STIBP: 
  disabled, RSB filling 
  Type: srbds status: Not affected 
  Type: tsx_async_abort status: Not affected 
  Device-1: AMD Picasso vendor: ASUSTeK driver: amdgpu v: kernel 
  bus ID: 03:00.0 chip ID: 1002:15d8 
  Device-2: IMC Networks USB2.0 HD IR UVC WebCam type: USB driver: uvcvideo 
  bus ID: 3-2:3 chip ID: 13d3:56cb serial: <filter> 
  Display: x11 server: X.Org 1.20.10 driver: loaded: amdgpu,ati 
  unloaded: modesetting alternate: fbdev,vesa display ID: :0 screens: 1 
  Screen-1: 0 s-res: 3200x1080 s-dpi: 96 s-size: 847x286mm (33.3x11.3") 
  s-diag: 894mm (35.2") 
  Monitor-1: eDP res: 1280x800 hz: 60 dpi: 105 size: 309x174mm (12.2x6.9") 
  diag: 355mm (14") 
  Monitor-2: HDMI-A-0 res: 1920x1080 hz: 60 dpi: 96 
  size: 509x286mm (20.0x11.3") diag: 584mm (23") 
  OpenGL: renderer: AMD Radeon Vega 10 Graphics (RAVEN DRM 3.39.0 
  5.9.16-1-MANJARO LLVM 11.0.1) 
  v: 4.6 Mesa 20.3.3 direct render: Yes 
  Device-1: AMD Raven/Raven2/Fenghuang HDMI/DP Audio driver: snd_hda_intel 
  v: kernel bus ID: 03:00.1 chip ID: 1002:15de 
  Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor driver: N/A 
  alternate: snd_pci_acp3x, snd_rn_pci_acp3x bus ID: 03:00.5 
  chip ID: 1022:15e2 
  Device-3: AMD Family 17h HD Audio vendor: ASUSTeK driver: snd_hda_intel 
  v: kernel bus ID: 03:00.6 chip ID: 1022:15e3 
  Sound Server: ALSA v: k5.9.16-1-MANJARO 
  Device-1: Intel Wireless 8265 / 8275 driver: iwlwifi v: kernel 
  bus ID: 01:00.0 chip ID: 8086:24fd 
  IF: wlp1s0 state: up mac: <filter> 
  IP v4: <filter> type: dynamic noprefixroute scope: global 
  broadcast: <filter> 
  IP v6: <filter> type: noprefixroute scope: link 
  WAN IP: <filter> 
  Message: No RAID data was found. 
  Local Storage: total: 2.75 TiB used: 2.21 TiB (80.4%) 
  SMART Message: Required tool smartctl not installed. Check --recommends 
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung model: MZVLB1T0HALR-00000 
  size: 953.87 GiB block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s 
  lanes: 4 serial: <filter> rev: EXA7301Q temp: 37.9 C 
  ID-2: /dev/sda maj-min: 8:0 type: USB vendor: Western Digital 
  model: WD My Passport 0741 size: 1.82 TiB block size: physical: 512 B 
  logical: 512 B serial: <filter> rev: 1022 
  Message: No Optical or Floppy data was found. 
  ID-1: / raw size: 35 GiB size: 34.2 GiB (97.72%) used: 11.55 GiB (33.8%) 
  fs: ext4 dev: /dev/nvme0n1p7 maj-min: 259:7 label: N/A 
  uuid: 42a788d1-3fe8-4602-8fcf-4e18283760d9 
  ID-2: /boot/efi raw size: 100 MiB size: 96 MiB (96.00%) 
  used: 25.1 MiB (26.1%) fs: vfat dev: /dev/nvme0n1p2 maj-min: 259:2 
  label: N/A uuid: 2CBC-EA3E 
  ID-3: /home raw size: 550.87 GiB size: 541.22 GiB (98.25%) 
  used: 389.99 GiB (72.1%) fs: ext4 dev: /dev/nvme0n1p8 maj-min: 259:8 
  label: N/A uuid: d3cfc03b-a5bc-448f-819f-de25ad3f02ec 
  ID-4: /run/media/enchance/Darkness raw size: 1.82 TiB 
  size: 1.82 TiB (100.00%) used: 1.82 TiB (100.0%) fs: ntfs dev: /dev/sda1 
  maj-min: 8:1 label: Darkness uuid: 7555F10D0FBB4159 
  ID-5: /run/timeshift/backup raw size: 550.87 GiB size: <superuser required> 
  used: <superuser required> fs: ext4 dev: /dev/nvme0n1p8 maj-min: 259:8 
  label: N/A uuid: d3cfc03b-a5bc-448f-819f-de25ad3f02ec 
  Kernel: swappiness: 60 (default) cache pressure: 100 (default) 
  ID-1: swap-1 type: partition size: 8 GiB used: 0 KiB (0.0%) priority: -2 
  dev: /dev/nvme0n1p6 maj-min: 259:6 label: N/A 
  uuid: df8eed30-ad13-4e26-98e6-c2649602f5ce 
  ID-1: /dev/nvme0n1p1 maj-min: 259:1 size: 529 MiB fs: ntfs label: N/A 
  uuid: 629C301A9C2FE6EF 
  ID-2: /dev/nvme0n1p3 maj-min: 259:3 size: 16 MiB fs: ext4 label: N/A 
  uuid: 5b64da61-71ef-44e4-9a1f-2ac3f4a6797a 
  ID-3: /dev/nvme0n1p4 maj-min: 259:4 size: 259.37 GiB fs: ntfs label: N/A 
  uuid: 0E70C89C70C88BC1 
  ID-4: /dev/nvme0n1p5 maj-min: 259:5 size: 100 GiB fs: ntfs label: N/A 
  uuid: 78C354BA13EDCE44 
  Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0 
  speed: 480 Mb/s chip ID: 1d6b:0002 
  Device-1: 1-1:2 info: Hoksi DURGOD Taurus K320 type: Keyboard,HID 
  driver: hid-generic,usbhid interfaces: 3 rev: 2.0 speed: 12 Mb/s 
  chip ID: 2f68:0082 
  Hub-2: 1-3:3 info: Genesys Logic Hub ports: 4 rev: 2.1 speed: 480 Mb/s 
  chip ID: 05e3:0610 
  Device-1: 1-3.1:6 info: Western Digital My Passport Ultra type: Mass Storage 
  driver: usb-storage interfaces: 1 rev: 2.1 speed: 480 Mb/s 
  chip ID: 1058:0741 serial: <filter> 
  Device-2: 1-3.3:5 info: USB OPTICAL MOUSE type: Mouse 
  driver: hid-generic,usbhid interfaces: 1 rev: 1.1 speed: 1.5 Mb/s 
  chip ID: 30fa:0300 
  Device-3: 1-4:4 info: Intel Bluetooth wireless interface type: Bluetooth 
  driver: btusb interfaces: 2 rev: 2.0 speed: 12 Mb/s chip ID: 8087:0a2b 
  Hub-3: 2-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.1 speed: 10 Gb/s 
  chip ID: 1d6b:0003 
  Hub-4: 3-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0 
  speed: 480 Mb/s chip ID: 1d6b:0002 
  Device-1: 3-1:2 info: Realtek RTS5129 Card Reader Controller 
  type: <vendor specific> driver: rtsx_usb,rtsx_usb_ms,rtsx_usb_sdmmc 
  interfaces: 1 rev: 2.0 speed: 480 Mb/s chip ID: 0bda:0129 serial: <filter> 
  Device-2: 3-2:3 info: IMC Networks USB2.0 HD IR UVC WebCam type: Video 
  driver: uvcvideo interfaces: 4 rev: 2.0 speed: 480 Mb/s chip ID: 13d3:56cb 
  serial: <filter> 
  Hub-5: 4-0:1 info: Full speed (or root) Hub ports: 1 rev: 3.1 speed: 10 Gb/s 
  chip ID: 1d6b:0003 
  System Temperatures: cpu: 53.6 C mobo: N/A gpu: amdgpu temp: 53.0 C 
  Fan Speeds (RPM): cpu: 2300 
  Processes: 297 Uptime: 31m wakeups: 4 Init: systemd v: 247 Compilers: 
  gcc: 10.2.0 Packages: pacman: 1208 lib: 361 flatpak: 0 Shell: Bash v: 5.1.0 
  running in: terminator inxi: 3.2.02 

:+1: Welcome to Manjaro! :+1:

Please read this:

and post some more information so we can see what’s really going on. Now we know the symptom of the disease, but we need some more probing to know where the origin lies…

An inxi --admin --verbosity=7 --filter --no-host --width would be the minimum required information… (Personally Identifiable Information like serial numbers and MAC addresses will be filtered out by the above command)


P.S. If you enter a bit more details in your profile, we can also see which Desktop Environment you’re using, which CPU/GPU you have, …

Yes, of course. Thanks for letting me know. I’ll update everything. Thanks man.

1 Like

Has got Manjaro Rolling xfce most recent LTS Recommended kernel, and was having the same trouble, Held the power button to power down the pc, was able to reboot into Manjaro, went online a few times, and Manjaro must have done auto updates, because, the shutdown and/or boot screen don’t show the “failed” light acpi message in pink, any more.

Both of you, please read this: