External monitor gets disconnected after sleep

raman · 15 October 2025 19:53

I am using Manjaro Gnome on my Lenovo Thinkpad. I am using an external LG monitor. After reconnecting HDMI cable I often faces problem in getting my screen on External monitor.

Suppose my external monitor is working fine and i put my laptop on sleep mode then on opening it again my external monitor says ““No Signal Please check your connection””. I have to power off my external monitor and connect again to get signal. This creates a lot unease.

inxi -Gazy

[raman@Manjaro ~]$ inxi -Gazy
Graphics:
  Device-1: Intel Meteor Lake-P [Intel Graphics] vendor: Lenovo driver: i915
    v: kernel alternate: xe arch: Xe-LPG process: Intel 4 (7nm+) built: 2023+
    ports: active: HDMI-A-1 off: eDP-1 empty: DP-1, DP-2, DP-3, DP-4
    bus-ID: 00:02.0 chip-ID: 8086:7d45 class-ID: 0300
  Device-2: Luxvisions Innotech Integrated Camera driver: uvcvideo type: USB
    rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-5:2 chip-ID: 30c9:00cd
    class-ID: fe01 serial: <filter>
  Display: wayland server: X.org v: 1.21.1.18 with: Xwayland v: 24.1.8
    compositor: gnome-shell v: 48.5 driver: gpu: i915 display-ID: 0
  Monitor-1: HDMI-A-1 model: LG (GoldStar) ULTRAGEAR serial: <filter>
    built: 2025 res: 2560x1440 dpi: 109 gamma: 1.2 size: 597x336mm (23.5x13.23")
    diag: 685mm (27") ratio: 16:9 modes: max: 3840x2160 min: 640x480
  Monitor-2: eDP-1 model: ChiMei InnoLux 0x1614 built: 2021 res: 1920x1200
    dpi: 142 gamma: 1.2 size: 344x215mm (13.54x8.46") diag: 406mm (16")
    ratio: 16:10 modes: 1920x1200
  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: 25.2.3-arch1.2
    glx-v: 1.4 direct-render: yes renderer: Mesa Intel Graphics (MTL)
    device-ID: 8086:7d45 memory: 30.14 GiB unified: yes display-ID: :0.0
  Info: Tools: api: eglinfo,glxinfo x11: xprop
[raman@Manjaro ~]$

I want to see my laptop screen on external monitor as soon as it is connected with hdmi.

soundofthunder · 16 October 2025 17:46

Please provide your system information (full inxi output) as described (below) and any other useful details.

Regards.

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raman · 16 October 2025 23:07

inxi output

This text will be hidden

[raman@Manjaro ~]$ inxi --filter --verbosity=8
System:
  Kernel: 6.12.48-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 15.2.1
    clocksource: tsc avail: acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.12-x86_64
    root=UUID=ce43b5b6-7094-4d0a-aeaf-e54ca176aa56 rw quiet splash apparmor=1
    security=apparmor udev.log_priority=3
  Desktop: GNOME v: 48.5 tk: GTK v: 3.24.50 wm: gnome-shell
    tools: gsd-screensaver-proxy dm: GDM v: 48.0 Distro: Manjaro
    base: Arch Linux
Machine:
  Type: Laptop System: LENOVO product: 21L3002VPB v: ThinkPad L16 Gen 1
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: LENOVO model: 21L3002VPB v: SDK0T76530 WIN
    serial: <superuser required> part-nu: LENOVO_MT_21L3_BU_Think_FM_ThinkPad
    L16 Gen 1 uuid: <superuser required> UEFI: LENOVO v: R2HET40W (1.19 )
    date: 04/30/2025
Battery:
  ID-1: BAT0 charge: 32.8 Wh (55.3%) condition: 59.3/57 Wh (104.1%)
    power: 6.1 W volts: 11.39 min: 11.31 model: Sunwoda 5B11H56398 type: Li-poly
    serial: <filter> charging: status: discharging control: start: 75%
    end: 80% cycles: 92
Memory:
  System RAM: total: 32 GiB available: 30.86 GiB used: 3.32 GiB (10.8%)
  Message: For most reliable report, use superuser + dmidecode.
  Array-1: capacity: 64 GiB slots: 2 modules: 2 EC: None
    max-module-size: 32 GiB note: est.
  Device-1: Controller0-ChannelA-DIMM0 type: DDR5 detail: synchronous
    size: 16 GiB speed: 5600 MT/s volts: curr: 1 width (bits): data: 64
    total: 64 manufacturer: SK Hynix part-no: HMCG78AGBSA095N serial: <filter>
  Device-2: Controller1-ChannelA-DIMM0 type: DDR5 detail: synchronous
    size: 16 GiB speed: 5600 MT/s volts: curr: 1 width (bits): data: 64
    total: 64 manufacturer: Kingston part-no: 9905790-178.A00G
    serial: <filter>
PCI Slots:
  Permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: Intel Core Ultra 7 155U bits: 64 type: MST AMCP
    arch: Meteor Lake level: v3 note: check built: 2023+ process: Intel 4 (7nm)
    family: 6 model-id: 0xAA (170) stepping: 4 microcode: 0x25
  Topology: cpus: 1x dies: 1 clusters: 5 cores: 12 threads: 14 mt: 2 tpc: 2
    st: 10 smt: enabled cache: L1: 1.2 MiB desc: d-10x32 KiB, 2x48 KiB; i-12x64
    KiB L2: 10 MiB desc: 5x2 MiB L3: 12 MiB desc: 1x12 MiB
  Speed (MHz): avg: 400 min/max: 400/4800:3800:2100 scaling:
    driver: intel_pstate governor: powersave cores: 1: 400 2: 400 3: 400 4: 400
    5: 400 6: 400 7: 400 8: 400 9: 400 10: 400 11: 400 12: 400 13: 400 14: 400
    bogomips: 75292
  Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat
    arch_capabilities arch_lbr arch_perfmon art avx avx2 avx_vnni bmi1 bmi2
    bts bus_lock_detect clflush clflushopt clwb 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 fsrm fxsr gfni hfi ht hwp
    hwp_act_window hwp_epp hwp_notify hwp_pkg_req ibpb ibrs ibrs_enhanced ibt
    ida intel_pt invpcid lahf_lm lm mca mce md_clear mmx monitor movbe
    movdir64b movdiri msr mtrr nonstop_tsc nopl nx ospke pae pat pbe pcid
    pclmulqdq pdcm pdpe1gb pebs pge pku pln pni popcnt pse pse36 pts rdpid
    rdrand rdseed rdtscp rep_good sdbg sep serialize sha_ni smap smep smx
    split_lock_detect ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm
    tm2 tpr_shadow tsc tsc_adjust tsc_deadline_timer tsc_known_freq umip
    user_shstk vaes vme vmx vnmi vpclmulqdq vpid waitpkg x2apic xgetbv1 xsave
    xsavec xsaveopt xsaves xtopology xtpr
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: indirect_target_selection 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 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: Enhanced / Automatic IBRS; IBPB:
    conditional; PBRSB-eIBRS: Not affected; BHI: BHI_DIS_S
  Type: srbds status: Not affected
  Type: tsa status: Not affected
  Type: tsx_async_abort status: Not affected
  Type: vmscape mitigation: IBPB before exit to userspace
Graphics:
  Device-1: Intel Meteor Lake-P [Intel Graphics] vendor: Lenovo driver: i915
    v: kernel alternate: xe arch: Xe-LPG process: Intel 4 (7nm+) built: 2023+
    ports: active: HDMI-A-1 off: eDP-1 empty: DP-1, DP-2, DP-3, DP-4
    bus-ID: 00:02.0 chip-ID: 8086:7d45 class-ID: 0300
  Device-2: Luxvisions Innotech Integrated Camera driver: uvcvideo type: USB
    rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-5:2 chip-ID: 30c9:00cd
    class-ID: fe01 serial: <filter>
  Display: wayland server: X.org v: 1.21.1.18 with: Xwayland v: 24.1.8
    compositor: gnome-shell driver: gpu: i915 display-ID: 0
  Monitor-1: HDMI-A-1 model: LG (GoldStar) ULTRAGEAR serial: <filter>
    built: 2025 res: 2560x1440 dpi: 109 gamma: 1.2 chroma: red: x: 0.651
    y: 0.333 green: x: 0.286 y: 0.635 blue: x: 0.153 y: 0.043 white: x: 0.314
    y: 0.329 size: 597x336mm (23.5x13.23") diag: 685mm (27") ratio: 16:9
    modes: 3840x2160, 2560x1440, 1920x1080, 1280x720, 1024x768, 800x600,
    720x576, 720x480, 640x480
  EDID-Warnings: 1: parse_edid: unhandled CEA mode 96 2: parse_edid:
    unhandled CEA mode 97
  Monitor-2: eDP-1 model: ChiMei InnoLux 0x1614 built: 2021 res: 1920x1200
    dpi: 142 gamma: 1.2 chroma: red: x: 0.592 y: 0.349 green: x: 0.329 y: 0.557
    blue: x: 0.153 y: 0.118 white: x: 0.314 y: 0.329
    size: 344x215mm (13.54x8.46") diag: 406mm (16") ratio: 16:10
    modes: 1920x1200
  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: 25.2.3-arch1.2
    glx-v: 1.4 direct-render: yes renderer: Mesa Intel Graphics (MTL)
    device-ID: 8086:7d45 memory: 30.14 GiB unified: yes display-ID: :0.0
  Info: Tools: api: eglinfo,glxinfo x11: xprop
Audio:
  Device-1: Intel Meteor Lake-P HD Audio vendor: Lenovo
    driver: sof-audio-pci-intel-mtl
    alternate: snd_hda_intel,snd_sof_pci_intel_mtl bus-ID: 00:1f.3
    chip-ID: 8086:7e28 class-ID: 0403
  API: ALSA v: k6.12.48-1-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: 1.4.8 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 Meteor Lake PCH CNVi WiFi driver: iwlwifi v: kernel
    bus-ID: 00:14.3 chip-ID: 8086:7e40 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 vendor: Lenovo driver: e1000e v: kernel port: N/A
    bus-ID: 00:1f.6 chip-ID: 8086:550b class-ID: 0200
  IF: enp0s31f6 state: down mac: <filter>
  Info: services: httpd, NetworkManager, systemd-timesyncd, wpa_supplicant
  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: 59.8 GiB (12.5%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: KIOXIA model: N/A
    size: 476.94 GiB block-size: physical: 512 B logical: 512 B speed: 63.2 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: 1112AXLA temp: 23.9 C
    scheme: GPT
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 476.64 GiB size: 468.09 GiB (98.21%)
    used: 59.8 GiB (12.8%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2
    label: N/A uuid: ce43b5b6-7094-4d0a-aeaf-e54ca176aa56
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 392 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 label: N/A
    uuid: 250F-337B
Swap:
  Alert: No swap data was found.
Unmounted:
  Message: No unmounted partitions found.
USB:
  Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 1 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: 2-0:1 info: super-speed hub ports: 4 rev: 3.1
    speed: 20 Gb/s (2.33 GiB/s) lanes: 2 mode: 3.2 gen-2x2 chip-ID: 1d6b:0003
    class-ID: 0900
  Hub-3: 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: 3-5:2 info: Luxvisions Innotech Integrated Camera type: video
    driver: uvcvideo interfaces: 5 rev: 2.0 speed: 480 Mb/s (57.2 MiB/s)
    lanes: 1 mode: 2.0 power: 500mA chip-ID: 30c9:00cd class-ID: fe01
    serial: <filter>
  Device-2: 3-6:3 info: Generic EMV 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: 2ce3:9563 class-ID: 0b00
  Device-3: 3-7:4 info: Shenzhen Goodix USB2.0 MISC 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: 27c6:6594 class-ID: ef00 serial: <filter>
  Hub-4: 4-0:1 info: super-speed hub ports: 2 rev: 3.1
    speed: 20 Gb/s (2.33 GiB/s) lanes: 2 mode: 3.2 gen-2x2 chip-ID: 1d6b:0003
    class-ID: 0900
Sensors:
  System Temperatures: cpu: 37.0 C mobo: 28.5 C
  Fan Speeds (rpm): fan-1: 0
Repos:
  Packages: pm: pacman pkgs: 1620 libs: 378
    tools: gnome-software,pamac,paru,yay pm: flatpak pkgs: 0
  Active pacman repo servers in: /etc/pacman.d/mirrorlist
    1: https://ftp.belnet.be/mirrors/manjaro/repos/stable/$repo/$arch
    2: https://www.mirrorservice.org/sites/repo.manjaro.org/repos/stable/$repo/$arch
    3: https://mirror.23m.com/manjaro/stable/$repo/$arch
    4: https://ftp.linux.org.tr/manjaro/stable/$repo/$arch
    5: https://ftpmirror1.infania.net/mirror/manjaro/stable/$repo/$arch
    6: https://nocix.mm.fcix.net/manjaro/stable/$repo/$arch
    7: https://repo.ialab.dsu.edu/manjaro/stable/$repo/$arch
    8: https://mirrors.sonic.net/manjaro/stable/$repo/$arch
Processes:
  CPU top: 5 of 379
  1: cpu: 26.8% command: firefox pid: 3072 mem: 577.2 MiB (1.8%)
  2: cpu: 15.5% command: firefox pid: 3318 mem: 259.3 MiB (0.8%)
  3: cpu: 12.1% command: gnome-shell pid: 2235 mem: 318.5 MiB (1.0%)
  4: cpu: 6.2% command: firefox pid: 3346 mem: 335.6 MiB (1.0%)
  5: cpu: 1.8% command: firefox pid: 3205 mem: 69.8 MiB (0.2%)
  Memory top: 5 of 379
  1: mem: 577.2 MiB (1.8%) command: firefox pid: 3072 cpu: 26.8%
  2: mem: 335.6 MiB (1.0%) command: firefox pid: 3346 cpu: 6.2%
  3: mem: 318.5 MiB (1.0%) command: gnome-shell pid: 2235 cpu: 12.1%
  4: mem: 259.3 MiB (0.8%) command: firefox pid: 3318 cpu: 15.5%
  5: mem: 153.0 MiB (0.4%) command: firefox pid: 3194 cpu: 0.7%
Info:
  Processes: 379 Power: uptime: 3m states: freeze,mem,disk suspend: s2idle
    wakeups: 0 hibernate: platform avail: shutdown, reboot, suspend, test_resume
    image: 12.33 GiB services: gsd-power,upowerd Init: systemd v: 257
    default: graphical tool: systemctl
  Compilers: clang: 20.1.8 gcc: 15.2.1 Shell: Bash v: 5.3.3
    running-in: gnome-terminal inxi: 3.3.39
[raman@Manjaro ~]$