External monitor stops Sleep cycle

Ask Fedora
1

Not sure if it’s the same, but my Fedora/monitor setup also had similar problem. In my case, I set my laptop screen as primary monitor and an external display (from ASUS) as secondary.

My situation is:

  • If the external monitor wasn’t plugged in, the primary screen goes to sleep as normal;
  • If I plugged the external monitor in, after 5 minutes of idle, both screen goes sleep initially, but then turn back on after ~5 seconds, in a very similar fashion mentioned in the main post. Through the machine in the main post seemed like a desktop.

What I’ve discovered after fondling the settings on the external monitor, is that if I turn off “Auto Source Detection” feature (see picture below), then both screen goes to sleep as normal.

IMG_20240713_142237
IMG_20240713_1422371000×750 165 KB

Maybe worth a try if your monitor offers the same feature.

However, I do still think this is a software issue, since the same monitor and setup worked just fine under Windows (eww, but yeah).

2

Added multiple-displays and removed cinnamon

3

Welcome to :fedora:

If you are having issues still, please post the output of inxi -Fzxx so we can see your hardware and current build config.

Please use preformatted text </>
2024-05-06_12-15-49_Preformatted_Text

4

Thanks! I first encountered the problem in 2020 since my correct Fedora instance was installed. I bookmarked the post back then to track their process, which they resolved by “(obtaining) a new laptop”.

Because of the fact that I did not actually resolve the issue, here is my output of inxi -Fzxx as requested:

$ inxi -Fzxx 
System:
  Kernel: 6.9.8-200.fc40.x86_64 arch: x86_64 bits: 64 compiler: gcc
    v: 2.41-37.fc40
  Desktop: GNOME v: 46.3.1 tk: GTK v: 3.24.42 wm: gnome-shell dm: GDM
    Distro: Fedora Linux 40 (Workstation Edition)
Machine:
  Type: Laptop System: LENOVO product: 21EF0002CD v: ThinkPad neo 14
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: LENOVO model: 21EF0002CD v: ThinkPad serial: <superuser required>
    part-nu: LENOVO_MT_21EF_BU_Think_FM_ThinkPad neo 14 UEFI: LENOVO
    v: R21ET42W (1.16 ) date: 09/29/2022
Battery:
  ID-1: BAT0 charge: 41.1 Wh (73.0%) condition: 56.3/57.0 Wh (98.8%)
    volts: 12.2 min: 11.5 model: SMP L21M3PD4 serial: <filter>
    status: not charging
CPU:
  Info: 8-core model: AMD Ryzen 7 6800H with Radeon Graphics bits: 64
    type: MT MCP arch: Zen 3+ rev: 1 cache: L1: 512 KiB L2: 4 MiB L3: 16 MiB
  Speed (MHz): avg: 494 high: 1906 min/max: 400/4785 cores: 1: 400 2: 400
    3: 1906 4: 400 5: 400 6: 400 7: 400 8: 400 9: 400 10: 400 11: 400 12: 400
    13: 400 14: 400 15: 400 16: 400 bogomips: 102212
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
  Device-1: AMD Rembrandt [Radeon 680M] vendor: Lenovo driver: amdgpu
    v: kernel arch: RDNA-2 pcie: speed: 16 GT/s lanes: 16 ports:
    active: HDMI-A-1,eDP-1 empty: DP-1, DP-2, DP-3, DP-4, DP-5, DP-6,
    Writeback-1 bus-ID: 33:00.0 chip-ID: 1002:1681 temp: 46.0 C
  Device-2: Syntek Integrated Camera driver: uvcvideo type: USB rev: 2.0
    speed: 480 Mb/s lanes: 1 bus-ID: 5-1:2 chip-ID: 174f:1811
  Display: wayland server: X.org v: 1.20.14 with: Xwayland v: 24.1.1
    compositor: gnome-shell driver: X: loaded: amdgpu
    unloaded: fbdev,modesetting,vesa dri: radeonsi gpu: amdgpu display-ID: 0
  Monitor-1: HDMI-A-1 model: PA278QEV res: 2560x1440 dpi: 109
    diag: 685mm (27")
  Monitor-2: eDP-1 model: AU Optronics 0xa195 res: 2240x1400 dpi: 190
    diag: 354mm (13.9")
  API: OpenGL v: 4.6 vendor: amd mesa v: 24.1.2 glx-v: 1.4 es-v: 3.2
    direct-render: yes renderer: AMD Radeon Graphics (radeonsi rembrandt LLVM
    18.1.6 DRM 3.57 6.9.8-200.fc40.x86_64) device-ID: 1002:1681
    display-ID: :0.0
  API: EGL Message: EGL data requires eglinfo. Check --recommends.
Audio:
  Device-1: AMD Rembrandt Radeon High Definition Audio vendor: Lenovo
    driver: snd_hda_intel v: kernel pcie: speed: 16 GT/s lanes: 16
    bus-ID: 33:00.1 chip-ID: 1002:1640
  Device-2: AMD ACP/ACP3X/ACP6x Audio Coprocessor vendor: Lenovo
    driver: snd_pci_acp6x v: kernel pcie: speed: 16 GT/s lanes: 16
    bus-ID: 33:00.5 chip-ID: 1022:15e2
  Device-3: AMD Family 17h/19h HD Audio vendor: Lenovo driver: snd_hda_intel
    v: kernel pcie: speed: 16 GT/s lanes: 16 bus-ID: 33:00.6 chip-ID: 1022:15e3
  API: ALSA v: k6.9.8-200.fc40.x86_64 status: kernel-api
  Server-1: PipeWire v: 1.0.7 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    4: pw-jack type: plugin
Network:
  Device-1: MEDIATEK MT7922 802.11ax PCI Express Wireless Network Adapter
    vendor: Lenovo driver: mt7921e v: kernel pcie: speed: 5 GT/s lanes: 1
    bus-ID: 01:00.0 chip-ID: 14c3:0616
  IF: wlp1s0 state: up mac: <filter>
  IF-ID-1: br-292f8fe42e00 state: down mac: <filter>
Bluetooth:
  Device-1: Foxconn / Hon Hai Bluetooth 5.2 Adapter [MediaTek MT7922]
    driver: btusb v: 0.8 type: USB rev: 2.1 speed: 480 Mb/s lanes: 1
    bus-ID: 1-4:2 chip-ID: 0489:e0d8
  Report: btmgmt ID: hci0 rfk-id: 1 state: down bt-service: enabled,running
    rfk-block: hardware: no software: yes address: <filter> bt-v: 5.2 lmp-v: 11
Drives:
  Local Storage: total: 476.94 GiB used: 326.96 GiB (68.6%)
  ID-1: /dev/nvme0n1 vendor: Lenovo model: UMIS RPETJ512MGE2QDQ
    size: 476.94 GiB speed: 63.2 Gb/s lanes: 4 serial: <filter> temp: 26.9 C
Partition:
  ID-1: / size: 475.34 GiB used: 326.62 GiB (68.7%) fs: btrfs dev: /dev/dm-0
    mapped: luks-c45a4ef6-ec97-43b4-bc39-1628f6d5af72
  ID-2: /boot size: 973.4 MiB used: 332.8 MiB (34.2%) fs: ext4
    dev: /dev/nvme0n1p2
  ID-3: /boot/efi size: 598.8 MiB used: 19 MiB (3.2%) fs: vfat
    dev: /dev/nvme0n1p1
  ID-4: /home size: 475.34 GiB used: 326.62 GiB (68.7%) fs: btrfs
    dev: /dev/dm-0 mapped: luks-c45a4ef6-ec97-43b4-bc39-1628f6d5af72
Swap:
  ID-1: swap-1 type: zram size: 8 GiB used: 724.2 MiB (8.8%) priority: 100
    dev: /dev/zram0
Sensors:
  System Temperatures: cpu: 46.0 C mobo: 32.0 C gpu: amdgpu temp: 46.0 C
  Fan Speeds (rpm): fan-1: 0 fan-2: 0
Info:
  Memory: total: 16 GiB note: est. available: 14.39 GiB used: 5.74 GiB (39.9%)
  Processes: 463 Power: uptime: 21h 51m wakeups: 0 Init: systemd v: 255
    target: graphical (5) default: graphical
  Packages: pm: flatpak pkgs: 48 Compilers: clang: 18.1.6 gcc: 14.1.1
    Shell: Bash v: 5.2.26 running-in: kgx inxi: 3.3.34

Since @endlisnis posted similar information on their post which this post was replied to, and resulted a great effect, I expect the information above will be very helpful in accelerating the resolving of this problem?

Also, for future viewers who might be confused by this: this is a spited post due to the parent post being too old to be replied, even though the problem remain unsolved for years. And yes, I did not make up the title of this post and I’m not responsible for any possible misunderstandings caused by it.

1 Like
5

Thank you, this helped!
By disabling the auto source detection the screen now goes to sleep properly!