Lock screen (Super+L) behaves as "Show Applications"

Support GNOME
1

After new update 2023-06-04, Lock screen (Super + L) yields the screen to freeze for a very short moment after which the Show Application appears.

The shortcut is set up correctly:

lock

I show here the problem (the keystrokes are shown with the help of Screenkey):

$ inxi -v7azy
System:
  Kernel: 5.10.181-2-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 13.1.1
    parameters: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64
    root=UUID=75a0eed1-3787-4451-9020-fbb5e4209954 rw quiet apparmor=1
    security=apparmor resume=UUID=1f35139c-62ba-45f9-afb4-8158f370195d
    udev.log_priority=3
  Desktop: GNOME v: 44.1 tk: GTK v: 3.24.37 wm: gnome-shell dm: GDM v: 44.1
    Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Laptop System: LENOVO product: 20N2S1PE00 v: ThinkPad T490
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: LENOVO model: 20N2S1PE00 v: SDK0R32862 WIN
    serial: <superuser required> UEFI: LENOVO v: N2IET75W (1.53 )
    date: 08/21/2019
Battery:
  ID-1: BAT0 charge: 35.8 Wh (84.6%) condition: 42.3/50.5 Wh (83.9%)
    volts: 12.9 min: 11.5 model: SMP 02DL008 type: Li-poly serial: <filter>
    status: charging cycles: 808
Memory:
  System RAM: available: 23.15 GiB used: 3.85 GiB (16.6%)
  RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: Intel Core i7-8565U bits: 64 type: MT MCP
    arch: Comet/Whiskey Lake note: check gen: core 8 level: v3 note: check
    built: 2018 process: Intel 14nm family: 6 model-id: 0x8E (142)
    stepping: 0xC (12) microcode: 0xF6
  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: 699 high: 700 min/max: 400/4600 scaling:
    driver: intel_pstate governor: powersave cores: 1: 700 2: 699 3: 700 4: 700
    5: 700 6: 700 7: 700 8: 700 bogomips: 32012
  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: mmio_stale_data mitigation: Clear CPU buffers; SMT vulnerable
  Type: retbleed mitigation: Enhanced IBRS
  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 status: Vulnerable: eIBRS with unprivileged eBPF
  Type: srbds mitigation: Microcode
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: Intel WhiskeyLake-U GT2 [UHD Graphics 620] vendor: Lenovo
    driver: i915 v: kernel arch: Gen-9.5 process: Intel 14nm built: 2016-20
    ports: active: eDP-1 empty: DP-1, DP-2, HDMI-A-1, HDMI-A-2 bus-ID: 00:02.0
    chip-ID: 8086:3ea0 class-ID: 0300
  Device-2: Chicony ThinkPad T490 Webcam driver: uvcvideo type: USB rev: 2.0
    speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 1-8:3 chip-ID: 04f2:b681
    class-ID: 0e02 serial: <filter>
  Display: x11 server: X.org v: 1.21.1.8 with: Xwayland v: 23.1.1
    compositor: gnome-shell driver: X: loaded: modesetting alternate: fbdev,vesa
    dri: iris gpu: i915 display-ID: :1 screens: 1
  Screen-1: 0 s-res: 2560x1440 s-size: <missing: xdpyinfo>
  Monitor-1: eDP-1 model: AU Optronics 0x2036 built: 2017 res: 2560x1440
    hz: 60 dpi: 210 gamma: 1.2 size: 309x174mm (12.17x6.85") diag: 355mm (14")
    ratio: 16:9 modes: 2560x1440
  API: OpenGL Message: Unable to show GL data. Required tool glxinfo missing.
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
  API: ALSA v: k5.10.181-2-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: 0.3.70 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 Cannon Point-LP CNVi [Wireless-AC] driver: iwlwifi v: kernel
    bus-ID: 00:14.3 chip-ID: 8086:9df0 class-ID: 0280
  IF: wlp0s20f3 state: up mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: noprefixroute scope: link
  Device-2: Intel Ethernet I219-V vendor: Lenovo driver: e1000e v: kernel
    port: N/A bus-ID: 00:1f.6 chip-ID: 8086:15be class-ID: 0200
  IF: enp0s31f6 state: down mac: <filter>
  WAN IP: <filter>
Bluetooth:
  Device-1: Intel Bluetooth 9460/9560 Jefferson Peak (JfP) driver: btusb v: 0.8
    type: USB rev: 2.0 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 1-10:5
    chip-ID: 8087:0aaa class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 2 state: up address: see --recommends
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 476.94 GiB used: 408.15 GiB (85.6%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung model: MZVLB512HBJQ-000L7
    size: 476.94 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: 4M2QEXF7 temp: 55.9 C
    scheme: GPT
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 451.05 GiB size: 442.9 GiB (98.19%)
    used: 408.14 GiB (92.2%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2
    label: N/A uuid: 75a0eed1-3787-4451-9020-fbb5e4209954
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 280 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 label: N/A
    uuid: F798-1318
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
  ID-1: swap-1 type: partition size: 25.59 GiB used: 0 KiB (0.0%)
    priority: -2 dev: /dev/nvme0n1p3 maj-min: 259:3 label: N/A
    uuid: 1f35139c-62ba-45f9-afb4-8158f370195d
Unmounted:
  Message: No unmounted partitions found.
USB:
  Hub-1: 1-0:1 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: 1-1:2 info: Alcor Micro AU9540 Smartcard Reader type: smart card
    driver: N/A interfaces: 1 rev: 2.0 speed: 12 Mb/s (1.4 MiB/s) lanes: 1
    mode: 1.1 power: 50mA chip-ID: 058f:9540 class-ID: 0b00
  Device-2: 1-8:3 info: Chicony ThinkPad T490 Webcam type: video
    driver: uvcvideo interfaces: 4 rev: 2.0 speed: 480 Mb/s (57.2 MiB/s) lanes: 1
    mode: 2.0 power: 500mA chip-ID: 04f2:b681 class-ID: 0e02 serial: <filter>
  Device-3: 1-9:4 info: Synaptics Prometheus MIS Touch Fingerprint Reader
    type: <vendor specific> driver: N/A interfaces: 1 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 100mA
    chip-ID: 06cb:00bd class-ID: ff00 serial: <filter>
  Device-4: 1-10:5 info: Intel Bluetooth 9460/9560 Jefferson Peak (JfP)
    type: bluetooth driver: btusb interfaces: 2 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 100mA
    chip-ID: 8087:0aaa class-ID: e001
  Hub-2: 2-0:1 info: super-speed hub ports: 6 rev: 3.1
    speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 1d6b:0003
    class-ID: 0900
  Hub-3: 3-0:1 info: hi-speed hub with single TT 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: 4-0:1 info: super-speed hub ports: 2 rev: 3.1
    speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 1d6b:0003
    class-ID: 0900
Sensors:
  System Temperatures: cpu: 55.0 C pch: 56.0 C mobo: N/A
  Fan Speeds (RPM): cpu: 3525
Info:
  Processes: 287 Uptime: 25m wakeups: 5 Init: systemd v: 253 default: graphical
  tool: systemctl Compilers: gcc: 13.1.1 clang: 15.0.7 Packages: pm: pacman
  pkgs: 2138 libs: 498 tools: pamac,yay pm: flatpak pkgs: 0 Shell: Bash
  v: 5.1.16 running-in: gnome-terminal inxi: 3.3.27
2

Please edit your topic title and first post to be more clear and concise with more details.

Please see:

3

@Yochanan Sorry about that. I’ve now edited the post + more details. Thanks.

4

Just let me know if more details should be provided, I’d be more than happy to do so as I’m unsure how I can provide a more detailed description other than the one provided. Many thanks

5

Right after Super + L, I ran
journalctl -xe
and I can see:

Jun 17 15:54:29 david-pc gsd-media-keys[2144]: Couldn't lock screen: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying                               
Jun 17 15:54:29 david-pc systemd[1705]: org.gnome.Shell@x11.service: Main process exited, code=dumped, status=5/TRAP

Full output is here:

https://0x0.st/HTmE.txt

6

Dear community, hope all is well - I’d kindly like to ask if there are any ideas to troubleshoot this issue since it is quite annoying not being able to lock the screen. Many thanks.

7

I don’t use gnome, but is there no way of searching through your shortcuts somewhere and check what meta+l (super+l) is leading to and if it’s incorrect, change it?

8

From here I can confirm there seems to be nothing wrong with the shortcut:

The shortcut is set up correctly:

lock

Moreover, the problem is also reproduced when simply using the “Lock” icon, thus it seems it is not a problem of the shortcut configuration:

9

Again, is there no way to search for the shorcut super+l or meta+l to see what the shortcut leads to?
That would confirm if the shortcut ONLY leads to lock screen or not.

This is probably not the reason, but since the absence of reply’s…

10

It seems pretty clear that its the lockscreen function causing gnome to crash.

The question is why.

@David5 Can you please disable all extensions and attempt lock?

My spider-senses tell me it might … then you can enable them one by one to find the culprit.

1 Like
11

Many thanks for your help, the problem was with the
V-Shell (Vertical Workspaces) extension (GitHub - G-dH/vertical-workspaces: V-Shell is a GNOME Shell extension that allows you to customize the layout and behavior of the Shell UI.).

Since Gnome currently does not support vertical workspaces, I had installed this extension in order to enable this feature.

It would be greatly beneficial if Gnome had vertical workspaces itself.

I uninstalled it and installed it again, and the lock screen now works.

Thanks :slight_smile:

12

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