Unable to login with LXDM after update

[minguo]

I just updated this week and now my system will not allow me to login thru LXDM.

The greeter screen still shows up, but the only thing on it are the words ‘manjaro openbox’ and a black background. The user select and language options are not present and there doesn’t seem to be any response to mouseclicks or keypresses.

I can still login if I hit CTRL F2 or similar, login using the TTY and then I can startx as normal.

My configuration for LXDM appears to be valid as far as I can determine, so what could have happened?

EDIT:

Here is my system info per below:

System:
  Kernel: 6.1.159-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 15.2.1
    clocksource: tsc avail: hpet,acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.1-x86_64
    root=UUID=3072b7ae-2e8e-460d-9ad2-263ca4dbee42 rw
    resume=UUID=f1a790de-29c7-43a9-b2ca-91e972ea786d quiet splash
  Desktop: i3 v: 4.24 with: i3bar tools:
    avail: i3lock,lxlock,xautolock,xlock vt: 2 dm: LXDM Distro: Manjaro
    base: Arch Linux
Machine:
  Type: Desktop Mobo: MSI model: B85-G41 PC Mate(MS-7850) v: 1.0
    serial: <superuser required> uuid: <superuser required> Firmware: BIOS
    vendor: American Megatrends v: 2.8 date: 07/17/2014
Battery:
  Message: No system battery data found. Is one present?
Memory:
  System RAM: total: 8 GiB available: 7.69 GiB used: 3.55 GiB (46.1%)
  Message: For most reliable report, use superuser + dmidecode.
  Array-1: capacity: 32 GiB slots: 4 modules: 2 EC: None
    max-module-size: 8 GiB note: est.
  Device-1: ChannelA-DIMM0 type: no module installed
  Device-2: ChannelA-DIMM1 type: DDR3 detail: synchronous size: 4 GiB
    speed: 1333 MT/s volts: curr: 2 min: 2 max: 2 width (bits): data: 64
    total: 64 manufacturer: Samsung part-no: M378B5273DH0-CH9 serial: <filter>
  Device-3: ChannelB-DIMM0 type: no module installed
  Device-4: ChannelB-DIMM1 type: DDR3 detail: synchronous size: 4 GiB
    speed: 1333 MT/s volts: curr: 2 min: 2 max: 2 width (bits): data: 64
    total: 64 manufacturer: 0000 part-no: N/A serial: N/A
PCI Slots:
  Permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: Intel Pentium G3260 bits: 64 type: MCP arch: Haswell level: v2
    built: 2013-15 process: Intel 22nm family: 6 model-id: 0x3C (60) stepping: 3
    microcode: 0x28
  Topology: cpus: 1x dies: 1 clusters: 2 cores: 2 smt: <unsupported> cache:
    L1: 128 KiB desc: d-2x32 KiB; i-2x32 KiB L2: 512 KiB desc: 2x256 KiB
    L3: 3 MiB desc: 1x3 MiB
  Speed (MHz): avg: 800 min/max: 800/3300 scaling: driver: intel_cpufreq
    governor: schedutil cores: 1: 800 2: 800 bogomips: 13204
  Flags: abm acpi aperfmperf apic arat arch_perfmon bts clflush cmov
    constant_tsc cpuid cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts ept
    ept_ad erms est flexpriority flush_l1d fpu fsgsbase fxsr ht ibpb
    ibpb_exit_to_user ibrs invpcid invpcid_single lahf_lm lm mca mce md_clear
    mmx monitor movbe msr mtrr nonstop_tsc nopl nx pae pat pbe pcid pclmulqdq
    pdcm pdpe1gb pebs pge pln pni popcnt pse pse36 pti pts rdrand rdtscp
    rep_good sdbg sep 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 xsave
    xsaveopt xtopology xtpr
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: indirect_target_selection status: Not affected
  Type: itlb_multihit status: KVM: VMX disabled
  Type: l1tf mitigation: PTE Inversion; VMX: conditional cache flushes, SMT
    disabled
  Type: mds mitigation: Clear CPU buffers; SMT disabled
  Type: meltdown mitigation: PTI
  Type: mmio_stale_data status: Unknown: No mitigations
  Type: reg_file_data_sampling status: Not affected
  Type: retbleed status: Not affected
  Type: spec_rstack_overflow status: Not affected
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Retpolines; IBPB: conditional; IBRS_FW;
    STIBP: disabled; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not
    affected
  Type: srbds mitigation: Microcode
  Type: tsa status: Not affected
  Type: tsx_async_abort status: Not affected
  Type: vmscape mitigation: IBPB before exit to userspace
Graphics:
  Device-1: NVIDIA GP108 [GeForce GT 1030] vendor: Gigabyte driver: nvidia
    v: 580.105.08 alternate: nouveau,nvidia_drm non-free: 550-580.xx+
    status: current (as of 2025-11; EOL~2026-12-xx) arch: Pascal code: GP10x
    process: TSMC 16nm built: 2016-2021 pcie: gen: 1 speed: 2.5 GT/s lanes: 4
    link-max: gen: 3 speed: 8 GT/s ports: active: none off: DVI-D-1,HDMI-A-1
    empty: none bus-ID: 01:00.0 chip-ID: 10de:1d01 class-ID: 0300
  Display: unspecified server: X.Org v: 21.1.21 driver: X: loaded: nvidia
    gpu: nvidia,nvidia-nvswitch display-ID: :1 screens: 1
  Screen-1: 0 s-res: 3840x1080 s-dpi: 95 s-size: 1027x292mm (40.43x11.50")
    s-diag: 1068mm (42.04")
  Monitor-1: DVI-D-1 mapped: DVI-D-0 note: disabled pos: primary,left
    model: Dell S2340M serial: <filter> built: 2013 res: mode: 1920x1080 hz: 60
    scale: 100% (1) dpi: 96 gamma: 1.2 chroma: red: x: 0.635 y: 0.333 green:
    x: 0.310 y: 0.624 blue: x: 0.149 y: 0.067 white: x: 0.314 y: 0.329
    size: 509x286mm (20.04x11.26") diag: 584mm (23") ratio: 16:9
    modes: 1920x1080, 1280x1024, 1152x864, 1024x768, 800x600, 640x480
  Monitor-2: HDMI-A-1 mapped: HDMI-0 note: disabled pos: right
    model: HP 27es serial: <filter> built: 2016 res: mode: 1920x1080 hz: 60
    scale: 100% (1) dpi: 82 gamma: 1.2 chroma: red: x: 0.655 y: 0.337 green:
    x: 0.318 y: 0.612 blue: x: 0.149 y: 0.067 white: x: 0.314 y: 0.329
    size: 598x336mm (23.54x13.23") diag: 686mm (27") ratio: 16:9
    modes: 1920x1080, 1680x1050, 1600x900, 1280x1024, 1440x900, 1280x800,
    1280x720, 1024x768, 800x600, 720x576, 720x480, 640x480
  API: OpenGL Message: Unable to show GL data. glxinfo is missing.
  Info: Tools: gpu: nvidia-settings,nvidia-smi wl: swaymsg x11: xdriinfo,
    xdpyinfo, xprop, xrandr
Audio:
  Device-1: Intel 8 Series/C220 Series High Definition Audio
    vendor: Micro-Star MSI driver: snd_hda_intel v: kernel bus-ID: 00:1b.0
    chip-ID: 8086:8c20 class-ID: 0403
  Device-2: NVIDIA GP108 High Definition Audio vendor: Gigabyte
    driver: snd_hda_intel v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 4
    link-max: gen: 3 speed: 8 GT/s bus-ID: 01:00.1 chip-ID: 10de:0fb8
    class-ID: 0403
  API: ALSA v: k6.1.159-1-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: JACK v: 1.9.22 status: off tools: N/A
  Server-2: PipeWire v: 1.4.9 status: off tools: pw-cli
Network:
  Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    vendor: Micro-Star MSI driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
    lanes: 1 port: d000 bus-ID: 03:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: enp3s0 state: up speed: 100 Mbps duplex: full mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: noprefixroute scope: link
  Info: services: mld,NetworkManager,nfsd,ntpd
  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: 447.13 GiB used: 388.79 GiB (87.0%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/sda maj-min: 8:0 vendor: TeamGroup model: L5Lite3D480G
    size: 447.13 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
    tech: SSD serial: <filter> fw-rev: 0A scheme: MBR
  Optical-1: /dev/sr0 vendor: Optiarc model: DVD RW AD-7190S rev: 1.00
    dev-links: cdrom
  Features: speed: 12 multisession: yes audio: yes dvd: yes
    rw: cd-r,cd-rw,dvd-r,dvd-ram state: running
Partition:
  ID-1: / raw-size: 38.25 GiB size: 37.5 GiB (98.04%) used: 29.41 GiB (78.4%)
    fs: ext4 dev: /dev/sda3 maj-min: 8:3 label: N/A
    uuid: 3072b7ae-2e8e-460d-9ad2-263ca4dbee42
  ID-2: /home raw-size: 400.72 GiB size: 393.86 GiB (98.29%)
    used: 359.24 GiB (91.2%) fs: ext4 dev: /dev/sda4 maj-min: 8:4 label: N/A
    uuid: 5530d1ed-d107-48dd-be89-530db07c4723
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: yes
    compressor: zstd max-pool: 20%
  ID-1: swap-1 type: partition size: 8.16 GiB used: 142.2 MiB (1.7%)
    priority: -2 dev: /dev/sda2 maj-min: 8:2 label: N/A
    uuid: f1a790de-29c7-43a9-b2ca-91e972ea786d
Unmounted:
  Message: No unmounted partitions found.
USB:
  Hub-1: 1-0:1 info: full speed or root hub ports: 2 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Hub-2: 1-1:2 info: Intel Integrated Rate Matching Hub ports: 6 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 8087:8008
    class-ID: 0900
  Hub-3: 2-0:1 info: full speed or root hub ports: 2 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Hub-4: 2-1:2 info: Intel Integrated Rate Matching Hub ports: 6 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 8087:8000
    class-ID: 0900
  Hub-5: 3-0:1 info: hi-speed hub with single TT ports: 12 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Device-1: 3-1:2 info: Brother Industries HL-L2395DW series type: printer
    driver: usbfs interfaces: 2 rev: 2.0 speed: 480 Mb/s (57.2 MiB/s) lanes: 1
    mode: 2.0 power: 2mA chip-ID: 04f9:0429 class-ID: 0701 serial: <filter>
  Device-2: 3-9:3 info: Microsoft Wired Keyboard 600 (model 1576)
    type: keyboard,HID driver: hid-generic,usbhid interfaces: 2 rev: 2.0
    speed: 1.5 Mb/s (183 KiB/s) lanes: 1 mode: 1.0 power: 100mA
    chip-ID: 045e:07f8 class-ID: 0300
  Device-3: 3-10:4 info: Sunplus Innovation Optical Mouse type: mouse
    driver: hid-generic,usbhid interfaces: 1 rev: 2.0
    speed: 1.5 Mb/s (183 KiB/s) lanes: 1 mode: 1.0 power: 98mA
    chip-ID: 1bcf:0005 class-ID: 0301
  Hub-6: 4-0:1 info: super-speed hub ports: 6 rev: 3.0
    speed: 5 Gb/s (596.0 MiB/s) lanes: 1 mode: 3.2 gen-1x1 chip-ID: 1d6b:0003
    class-ID: 0900
Sensors:
  System Temperatures: cpu: 31.0 C mobo: N/A gpu: nvidia temp: 33 C
  Fan Speeds (rpm): N/A gpu: nvidia fan: 0%
Repos:
  Packages: pm: pacman pkgs: 2028 libs: 441 tools: octopi,pamac,yaourt,yay
    pm: flatpak pkgs: 0
  Active pacman repo servers in: /etc/pacman.d/mirrorlist
    1: https://mirrors.gigenet.com/manjaro/stable/$repo/$arch
    2: https://mirror.math.princeton.edu/pub/manjaro/stable/$repo/$arch
    3: https://mirrors.ocf.berkeley.edu/manjaro/stable/$repo/$arch
Processes:
  CPU top: 5 of 217
  1: cpu: 2.4% command: brave pid: 971 mem: 312.0 MiB (3.9%)
  2: cpu: 1.4% command: brave pid: 1148 mem: 157.0 MiB (1.9%)
  3: cpu: 1.1% command: brave pid: 933 mem: 588.4 MiB (7.4%)
  4: cpu: 0.4% command: brave pid: 3165 mem: 308.2 MiB (3.9%)
  5: cpu: 0.4% command: brave pid: 19593 mem: 107.3 MiB (1.3%)
  Memory top: 5 of 217
  1: mem: 588.4 MiB (7.4%) command: brave pid: 933 cpu: 1.1%
  2: mem: 443.8 MiB (5.6%) command: brave pid: 1139 cpu: 0.1%
  3: mem: 312.0 MiB (3.9%) command: brave pid: 971 cpu: 2.4%
  4: mem: 308.2 MiB (3.9%) command: brave pid: 3165 cpu: 0.4%
  5: mem: 251.3 MiB (3.1%) command: brave pid: 2318 cpu: 0.1%
Info:
  Processes: 217 Power: uptime: 11h 10m states: freeze,mem,disk suspend: deep
    avail: s2idle wakeups: 0 hibernate: platform avail: shutdown, reboot,
    suspend, test_resume image: 3.06 GiB Init: systemd v: 258
    default: graphical tool: systemctl
  Compilers: clang: 21.1.6 gcc: 15.2.1 Shell: Bash v: 5.3.8
    running-in: terminator inxi: 3.3.40
[16.962s] --> [0]

[soundofthunder]

I’ll note that LXDM hasn’t been supported by Manjaro for some time. I understand that it was once one of the Community editions, but is no longer available for download:

Manjaro Image Downloads

Some (rather old) forum topics that might be of interest:

After Stable Update 2021-09-24 LightDM no longer automatically start

I already tried newer kernels, without success.

Lightdm failed to start with Kernel 5.11.14

---

Please help others to help you, by providing your system information as described (below) along with any other detail that might be relevant.

I’m sure someone will help when they are able.

Regards.

---

What follows is from a standard template.

Welcome to the Manjaro community

As a new or infrequent forum user, please take some time to familiarise yourself with forum requirements, and the many ways to use the forum to your benefit.

Note: By virtue of using the Manjaro forum you acknowledge and agree to follow Rules and Guidelines outlined; so, you really should read them:

Required Reading

• Forum Rules
• Strict Forum Rules and Guidelines

Highly Recommended

• How to Post
• How to Request Support
• How to Post Command Output as Preformatted Text

---

Work with us, not against us

It is important to provide as much actionable information as possible in your first post, rather than simply indicating there is a problem. Please also be prepared to provide output from commands if/when asked.

The thread/topic title is not meant to be the sole description of a problem – use a brief descriptive title – and then fully describe your issue in the body of your first post.

Simply waiting for others to ask you questions is counter-productive – typically, nobody has a at their disposal – and your clear, concise and accurate input is often relied upon in order to help you.

Please help others to make informed suggestions based on information you provide.

---

System Information

While information from *-fetch type apps might be fine for someone wishing to buy your computer, for Support purposes it’s better to ask your system directly;

Output of the inxi command (with appropriate parameters, and formatted according to forum guidelines) will generate information useful for those wishing to help:

Suggested inxi command (use either):

inxi -zv8	(short-form)
inxi --filter --verbosity=8	(long-form)
inxi man pages	(manual)

Running `inxi` within a `chroot` environment

• Add --color=0 to the long-form command, or…
• Change the short-form command to inxi -zv8c0

Your privacy is respected

When inxi is run using --filter or -z parameters, any personally identifiable information is filtered from the resulting output.

---

Update Announcements

The Update Announcements contain important information and a Known Issues and Solutions section that should generally be checked before posting a request for support.

• Stable Updates
• Testing Updates
• Unstable Updates

---

Technical Resources

• Manjaro Linux Wiki
• Arch Linux Wiki
• Tutorials

---

Notice- The above content is partially pre-prepared as an introduction for new or returning forum Users. Please take the time to follow any links given and discover how to use the forum effectively.

[linux-aarhus]

@minguo

so what could have happened

lxdm supported both gtk2 and gtk3 - I don’t remember if it was one or two packages.

Even so - the current lxdm package is gtk3 only - so the greeter theme you are using may be gtk2 - not functional.

Try editing the lxdm.conf to use Industrial as theme. Just recently another member had issues with lxdm and I looked into it.

I tested with a virtual machine running xfce - I could get it to work - but not easily.

Only the default Industrial theme is supported. Any other theme will cause errors in one way or another. Most - if not all - of the lxdm themes in AUR will require some work to be functional.

Screenshot

[minguo]

Thank you, I’ve made this change, but the issue persists. (Same black splashscreen that has the words ‘Manjaro Openbox’ but nothing else.

Here is my lxdm.conf

[base]
## uncomment and set autologin username to enable autologin
# autologin=dgod

## uncomment and set timeout to enable timeout autologin,
## the value should >=5
# timeout=10

## default session or desktop used when no systemwide config
session=/usr/bin/openbox-session

## uncomment and set to set numlock on your keyboard
# numlock=0

## set this if you don't want to put xauth file at ~/.Xauthority
# xauth_path=/tmp

# not ask password for users who have empty password
# skip_password=1

## greeter used to welcome the user
greeter=/usr/lib/lxdm/lxdm-greeter-gtk

[server]
## arg used to start xserver, not fully function
arg=/usr/bin/X -background vt1
# uncomment this if you really want xserver listen to tcp
# tcp_listen=1
# uncoment this if you want reset the xserver after logou
# reset=1

[display]
## gtk theme used by greeter
##gtk_theme=ManjaroFlatDark
gtk_theme=Industrial

## background of the greeter
#bg=/usr/share/backgrounds/evodark.png

## if show bottom pane
bottom_pane=1

## if show language select control
lang=1

## if show keyboard layout select control
keyboard=0

## the theme of greeter
theme=Manjaro

hide_sessions=0
hide_exit=0
hide_time=0

[input]

[userlist]
## if disable the user list control at greeter
disable=0

## whitelist user
white=

## blacklist user
black=

Here is my lxdm.log

** Message: 08:41:55.965: start greeter on /var/run/lxdm/lxdm-:0.auth

(lxdm-greeter-gtk:629): Gtk-WARNING **: 08:41:56.109: Theme parsing error: gtk.css:10:7: not a number

(lxdm-greeter-gtk:629): Gtk-WARNING **: 08:41:56.109: Theme parsing error: gtk.css:10:14: Using Pango syntax for the font: style property is deprecated; please use CSS syntax

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.166: invalid (NULL) pointer instance

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.166: g_signal_connect_data: assertion ‘G_TYPE_CHECK_INSTANCE (instance)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.166: gtk_label_set_text: assertion ‘GTK_IS_LABEL (label)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.166: gtk_widget_set_name: assertion ‘GTK_IS_WIDGET (widget)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.166: gtk_bin_get_child: assertion ‘GTK_IS_BIN (bin)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.166: gtk_editable_set_editable: assertion ‘GTK_IS_EDITABLE (editable)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.166: gtk_widget_set_can_focus: assertion ‘GTK_IS_WIDGET (widget)’ failed

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.166: invalid (NULL) pointer instance

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.166: g_signal_connect_data: assertion ‘G_TYPE_CHECK_INSTANCE (instance)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_combo_box_set_model: assertion ‘GTK_IS_COMBO_BOX (combo_box)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_combo_box_set_entry_text_column: assertion ‘GTK_IS_COMBO_BOX (combo_box)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_combo_box_set_active_iter: assertion ‘GTK_IS_COMBO_BOX (combo_box)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_widget_set_name: assertion ‘GTK_IS_WIDGET (widget)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_bin_get_child: assertion ‘GTK_IS_BIN (bin)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_editable_set_editable: assertion ‘GTK_IS_EDITABLE (editable)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_widget_set_can_focus: assertion ‘GTK_IS_WIDGET (widget)’ failed

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.169: invalid (NULL) pointer instance

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.169: g_signal_connect_data: assertion ‘G_TYPE_CHECK_INSTANCE (instance)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_combo_box_set_model: assertion ‘GTK_IS_COMBO_BOX (combo_box)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_combo_box_set_entry_text_column: assertion ‘GTK_IS_COMBO_BOX (combo_box)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.169: gtk_combo_box_set_active: assertion ‘GTK_IS_COMBO_BOX (combo_box)’ failed

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.169: invalid (NULL) pointer instance

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.169: g_signal_connect_data: assertion ‘G_TYPE_CHECK_INSTANCE (instance)’ failed

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.169: invalid (NULL) pointer instance

(lxdm-greeter-gtk:629): GLib-GObject-CRITICAL **: 08:41:56.169: g_signal_connect_data: assertion ‘G_TYPE_CHECK_INSTANCE (instance)’ failed

(lxdm-greeter-gtk:629): Gtk-CRITICAL **: 08:41:56.204: gtk_widget_grab_focus: assertion ‘GTK_IS_WIDGET (widget)’ failed[2.126s] → [0]

[linux-aarhus]

This is where you change the theme

@minguo

## the theme of greeter
theme=Manjaro

theme=Industrial

The theme in this section is something different

@minguo

[display]
## gtk theme used by greeter
##gtk_theme=ManjaroFlatDark
gtk_theme=Industrial

gtk_theme should be an existing theme e.g. Adwaita

[minguo]

Thank you! That was the problem. I’ve been living with LXDM for quite some time without issue so I wonder if I flubbed resolving a pacnew file after the latest update.

At any rate, I shall investigate migrating to a better supported display manager.