Making changing the lock screen background more intuitive in Manjaro w/ KDE Plasma?

Since I installed Manjaro a few months ago, I tried to change my lock screen background image by going to System Settings → Appearance & Style → Colors & Themes → Login Screen (SDDM) → Change Background (on the selected theme) (see Image 1), only to find that it doesn’t work, even after restarting and retrying it a few times.


Image 1: Button to change lock screen background in Appearance & Style

Until yesterday, I didn’t look into it more thoroughly though because it wasn’t high up on my priority list. When I did look into the issue and did some sleuthing I found the following post, that helped me figure it out, despite the GUI of System Settings apparently having changed a bit since then.

I can’t change lock screen wallpaper and sleep screen wallpaper

After changing the background image in System Settings → Security & Privacy → Screen Locking → Configure Appearance... (see Image 2) it did work, and the lock screen background was changed.


Image 2: Changing lock screen background in Screen Locking

Firstly, if I have simply done something wrong here, please tell me. Even if it just is how this works right now, I realize this is not a huge issue, but in my opinion, it is pretty unintuitive having to change your lock screen background in the Security & Privacy when there is a Appearance & Style section that appears to have an option to change your lock screen background. Is that something that could be changed, or at least be made more obvious? Also, I don’t know if this is maybe a Plasma issue than it is directly a Manjaro issue, so if that’s the case, please tell me and I’ll report it on the KDE page.

System Info:
Operating System: Manjaro Linux
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
Kernel Version: 6.12.9-1-MANJARO (64-bit)
Graphics Platform: Wayland
Processors: 16 × 13th Gen Intel® Core™ i5-13500H
Memory: 16,5 GB of RAM
Graphics Processor: Mesa Intel® Iris® Xe Graphics
Manufacturer: LENOVO
Product Name: 83AQ
System Version: IdeaPad Pro 5 16IRH8

inxi -Fazy output
System:
  Kernel: 6.12.9-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 14.2.1
    clocksource: tsc avail: acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.12-x86_64
    root=UUID=253f79db-df3e-479d-8312-c6aab0646b8a rw nvidia_drm.modeset=1
    nvidia_drm.fbdev=1 quiet splash
    resume=UUID=c58d9695-2c0e-4a5b-8a4e-852d96c9a159 udev.log_priority=3
  Desktop: KDE Plasma v: 6.2.5 tk: Qt v: N/A info: frameworks v: 6.10.0
    wm: kwin_wayland with: krunner vt: 1 dm: SDDM Distro: Manjaro
    base: Arch Linux
Machine:
  Type: Laptop System: LENOVO product: 83AQ v: IdeaPad Pro 5 16IRH8
    serial: <superuser required> Chassis: type: 10 v: IdeaPad Pro 5 16IRH8
    serial: <superuser required>
  Mobo: LENOVO model: LNVNB161216 v: SDK0T76463 WIN
    serial: <superuser required> part-nu: LENOVO_MT_83AQ_BU_idea_FM_IdeaPad Pro
    5 16IRH8 uuid: <superuser required> UEFI: LENOVO v: KZCN46WW
    date: 10/22/2024
Battery:
  ID-1: BAT0 charge: 58.1 Wh (79.5%) condition: 73.1/75.0 Wh (97.4%)
    volts: 16.7 min: 15.6 model: SMP L22M4PF5 type: Li-poly serial: <filter>
    status: not charging cycles: 95
CPU:
  Info: model: 13th Gen Intel Core i5-13500H bits: 64 type: MST AMCP
    arch: Raptor Lake gen: core 13 level: v3 note: check built: 2022+
    process: Intel 7 (10nm) family: 6 model-id: 0xBA (186) stepping: 2
    microcode: 0x4123
  Topology: cpus: 1x dies: 1 clusters: 6 cores: 12 threads: 16 mt: 4 tpc: 2
    st: 8 smt: enabled cache: L1: 1.1 MiB desc: d-8x32 KiB, 4x48 KiB; i-4x32
    KiB, 8x64 KiB L2: 9 MiB desc: 4x1.2 MiB, 2x2 MiB L3: 18 MiB desc: 1x18 MiB
  Speed (MHz): avg: 789 min/max: 400/4700:3500 scaling: driver: intel_pstate
    governor: powersave cores: 1: 789 2: 789 3: 789 4: 789 5: 789 6: 789 7: 789
    8: 789 9: 789 10: 789 11: 789 12: 789 13: 789 14: 789 15: 789 16: 789
    bogomips: 102016
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: reg_file_data_sampling mitigation: Clear Register File
  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: Enhanced / Automatic IBRS; IBPB: conditional;
    RSB filling; PBRSB-eIBRS: SW sequence; BHI: BHI_DIS_S
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: Intel Raptor Lake-P [Iris Xe Graphics] vendor: Lenovo driver: i915
    v: kernel arch: Xe process: Intel 7 (10nm) built: 2022+ ports:
    active: DP-5,DP-6 off: eDP-1 empty: DP-1, DP-2, DP-3, DP-4, HDMI-A-1
    bus-ID: 00:02.0 chip-ID: 8086:a7a0 class-ID: 0300
  Device-2: NVIDIA AD107M [GeForce RTX 4050 Max-Q / Mobile] vendor: Lenovo
    driver: N/A non-free: 550/565.xx+ status: current (as of 2025-01)
    arch: Lovelace code: AD1xx process: TSMC n4 (5nm) built: 2022+ pcie: gen: 4
    speed: 16 GT/s lanes: 8 bus-ID: 01:00.0 chip-ID: 10de:28e1 class-ID: 0300
  Device-3: Logitech Logitech Webcam C925e driver: snd-usb-audio,uvcvideo
    type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-2.3:6
    chip-ID: 046d:085b class-ID: 0102 serial: <filter>
  Device-4: Bison Integrated RGB Camera driver: uvcvideo type: USB rev: 2.0
    speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-8:5 chip-ID: 5986:215d
    class-ID: fe01 serial: <filter>
  Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.4
    compositor: kwin_wayland driver: X: loaded: modesetting alternate: fbdev,vesa
    dri: iris gpu: i915 display-ID: 0
  Monitor-1: DP-5 model: LG (GoldStar) IPS FULLHD built: 2014 res:
    mode: 1920x1080 hz: 60 scale: 100% (1) dpi: 102 gamma: 1.2
    size: 480x270mm (18.9x10.63") diag: 551mm (21.7") ratio: 16:9 modes:
    max: 1920x1080 min: 720x400
  Monitor-2: DP-6 model: HP Z27n G2 serial: <filter> built: 2019 res:
    mode: 2560x1440 hz: 75 scale: 100% (1) dpi: 109 gamma: 1.2
    size: 597x336mm (23.5x13.23") diag: 685mm (27") ratio: 16:9 modes:
    max: 2560x1440 min: 720x400
  Monitor-3: eDP-1 model: BOE Display 0x0ac1 built: 2021 res: 2560x1600
    dpi: 189 gamma: 1.2 size: 344x215mm (13.54x8.46") diag: 406mm (16")
    ratio: 16:10 modes: 2560x1600
  API: EGL v: 1.5 hw: drv: intel iris platforms: device: 0 drv: iris
    device: 1 drv: swrast gbm: drv: iris surfaceless: drv: iris wayland:
    drv: iris x11: drv: iris
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.3.3-arch1.2
    glx-v: 1.4 direct-render: yes renderer: Mesa Intel Iris Xe Graphics (RPL-P)
    device-ID: 8086:a7a0 memory: 7.5 GiB unified: yes display-ID: :1.0
  API: Vulkan v: 1.4.303 layers: 5 device: 0 type: integrated-gpu name: Intel
    Iris Xe Graphics (RPL-P) driver: N/A device-ID: 8086:a7a0
    surfaces: xcb,xlib,wayland
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
    de: kscreen-console,kscreen-doctor gpu: nvidia-smi wl: wayland-info
    x11: xdpyinfo, xprop, xrandr
Audio:
  Device-1: Intel Raptor Lake-P/U/H cAVS vendor: Lenovo
    driver: sof-audio-pci-intel-tgl bus-ID: 00:1f.3 chip-ID: 8086:51ca
    class-ID: 0401
  Device-2: Logitech Logitech Webcam C925e driver: snd-usb-audio,uvcvideo
    type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-2.3:6
    chip-ID: 046d:085b class-ID: 0102 serial: <filter>
  Device-3: Logitech Yeti X driver: hid-generic,snd-usb-audio,usbhid
    type: USB rev: 2.0 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 3-2.4.4:15
    chip-ID: 046d:0aaf class-ID: 0300 serial: <filter>
  API: ALSA v: k6.12.9-1-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: sndiod v: N/A status: off tools: aucat,midicat,sndioctl
  Server-2: JACK v: 1.9.22 status: off tools: N/A
  Server-3: PipeWire v: 1.2.7 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    tools: pactl,pw-cat,pw-cli,wpctl
Network:
  Device-1: Intel Raptor Lake PCH CNVi WiFi driver: iwlwifi v: kernel
    bus-ID: 00:14.3 chip-ID: 8086:51f1 class-ID: 0280
  IF: wlp0s20f3 state: up mac: <filter>
  Device-2: Realtek RTL8153 Gigabit Ethernet Adapter driver: r8152 type: USB
    rev: 3.0 speed: 5 Gb/s lanes: 1 mode: 3.2 gen-1x1 bus-ID: 2-1.2.2:6
    chip-ID: 0bda:8153 class-ID: 0000 serial: <filter>
  IF: enp0s13f0u1u2u2 state: down mac: <filter>
  Device-3: ASIX AX88179 Gigabit Ethernet driver: cdc_ncm type: USB rev: 3.2
    speed: 5 Gb/s lanes: 1 mode: 3.2 gen-1x1 bus-ID: 2-1.4.2:5 chip-ID: 0b95:1790
    class-ID: 0a00 serial: <filter>
  IF: eth1 state: down mac: <filter>
  Info: services: NetworkManager, systemd-timesyncd, wpa_supplicant
Bluetooth:
  Device-1: Intel AX211 Bluetooth driver: btusb v: 0.8 type: USB rev: 2.0
    speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 3-10:7 chip-ID: 8087:0033
    class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 3 state: up address: see --recommends
Drives:
  Local Storage: total: 931.51 GiB used: 71.41 GiB (7.7%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Corsair model: MP600 MICRO
    size: 931.51 GiB block-size: physical: 512 B logical: 512 B speed: 63.2 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: ELFMH0.1 temp: 30.9 C
    scheme: GPT
Partition:
  ID-1: / raw-size: 123.7 GiB size: 120.7 GiB (97.57%) used: 66.34 GiB (55.0%)
    fs: ext4 dev: /dev/nvme0n1p7 maj-min: 259:7
  ID-2: /boot/efi raw-size: 512 MiB size: 511 MiB (99.80%)
    used: 292 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p5 maj-min: 259:5
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: no
  ID-1: swap-1 type: partition size: 15.04 GiB used: 5.08 GiB (33.8%)
    priority: -2 dev: /dev/nvme0n1p6 maj-min: 259:6
Sensors:
  System Temperatures: cpu: 53.0 C mobo: N/A
  Fan Speeds (rpm): N/A
Info:
  Memory: total: 16 GiB note: est. available: 15.36 GiB used: 13.47 GiB (87.7%)
  Processes: 493 Power: uptime: 18h 53m states: freeze,mem,disk
    suspend: s2idle wakeups: 0 fails: 2 hibernate: platform avail: shutdown,
    reboot, suspend, test_resume image: 6.11 GiB services: org_kde_powerdevil,
    thermald, upowerd Init: systemd v: 257 default: graphical tool: systemctl
  Packages: 1696 pm: pacman pkgs: 1674 libs: 521 tools: pamac,yay pm: flatpak
    pkgs: 22 Compilers: clang: 19.1.6 gcc: 14.2.1 Shell: Zsh v: 5.9 default: Bash
    v: 5.2.37 running-in: konsole inxi: 3.3.37
1 Like

This is all KDE Plasma, not Manjaro.

It is working correctly. The screen for the login manager and the lock-screen are different functions, you have the option of changing either or both. This is a KDE issue, not Manjaro. If you would like to air your concerns to KDE, goto KDE.org

3 Likes

The lockscreen appearance seems to be in the right location as it has no relevance to the login manager or the desktop background.

That is how Plasma works - so it is an upstream issue - if they are willing to somehow link to the relevant location, that would be an improvement :slight_smile:

3 Likes

Thanks for the info, I’ll bring this up over at the KDE site.

This may already cover it.

Move wallpaper changing into a KCM and make it easier to apply the wallpaper to the desktop(s), lock screen, and login screen all at once

1 Like

Yes, I’d say so - I have slideshow set for the desktop, again in the screen locker, but the login screen is more restricted…

Options (when setting wallpaper) to ‘Apply to…’ would be an excellent development.

1 Like

That’s because the login screen runs with root privileges (by default), given that it must authenticate you against /etc/shadow. :wink:

3 Likes

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