clear history for external monitors

[krisvankooten]

My HP laptop with latest version has some problems with exernal montors when using docking station.
Sometimes it works sometimes not: Display is showing monitors, but they stay black.

How can i clear the settings which Linux has for the external monitors? (it remembers the settings somewhere).
May be it will work again after clearing.

Thanks.

[Pjotr]

Please generate an overview of your system like this:
- Launch a terminal window (this is how to launch a terminal window);
- Make the terminal window full screen, to avoid chopped lines;
- Copy/paste this command into the terminal:

Code: Select all

inxi -Fxxxpmrz

(if you type: the letter F is a capital letter, and don't omit the space after inxi!)

Press Enter.

Copy/paste the output into your next message.

[krisvankooten]

Code: Select all

System:
  Kernel: 6.5.0-25-generic x86_64 bits: 64 compiler: N/A
    Desktop: Cinnamon 6.0.4 tk: GTK 3.24.33 wm: muffin dm: LightDM 1.30.0
    Distro: Linux Mint 21.3 Virginia base: Ubuntu 22.04 jammy
Machine:
  Type: Laptop System: HP product: HP ProBook 455 15.6 inch G10 Notebook PC
    v: N/A serial: <superuser required> Chassis: type: 10
    serial: <superuser required>
  Mobo: HP model: 8B5C v: KBC Version 53.1D.00 serial: <superuser required>
    UEFI: HP v: 78 Ver. 01.02.03 date: 05/24/2023
Battery:
  ID-1: BAT0 charge: 49.4 Wh (100.0%) condition: 49.4/51.3 Wh (96.3%)
    volts: 13.0 min: 11.6 model: Hewlett-Packard Primary type: Li-ion
    serial: <filter> status: Full cycles: 21
Memory:
  RAM: total: 30.66 GiB used: 16.37 GiB (53.4%)
  RAM Report:
    permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: 6-core model: AMD Ryzen 5 7530U with Radeon Graphics bits: 64
    type: MT MCP smt: enabled arch: Zen 3 rev: 0 cache: L1: 384 KiB L2: 3 MiB
    L3: 16 MiB
  Speed (MHz): avg: 780 high: 1927 min/max: 400/4546 cores: 1: 1445 2: 400
    3: 1398 4: 400 5: 400 6: 400 7: 400 8: 400 9: 400 10: 1397 11: 1927 12: 400
    bogomips: 47910
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
  Device-1: AMD Barcelo vendor: Hewlett-Packard driver: amdgpu v: kernel
    pcie: speed: 8 GT/s lanes: 16 ports: active: DP-10,DP-7,eDP-1
    empty: DP-1, DP-2, DP-3, DP-4, DP-5, DP-9, HDMI-A-1 bus-ID: 04:00.0
    chip-ID: 1002:15e7 class-ID: 0300
  Device-2: Cheng Uei Precision Industry (Foxlink) HP HD Camera type: USB
    driver: uvcvideo bus-ID: 3-4:2 chip-ID: 05c8:0b06 class-ID: fe01
    serial: <filter>
  Display: x11 server: X.Org v: 1.21.1.4 driver: X: loaded: amdgpu,ati
    unloaded: fbdev,modesetting,vesa gpu: amdgpu display-ID: :0 screens: 1
  Screen-1: 0 s-res: 4920x1920 s-dpi: 96 s-size: 1302x508mm (51.3x20.0")
    s-diag: 1398mm (55")
  Monitor-1: DisplayPort-6 pos: top-right res: 1080x1920 hz: 60 dpi: 93
    size: 296x527mm (11.7x20.7") diag: 604mm (23.8")
  Monitor-2: DisplayPort-9 pos: middle-c res: 1920x1080 hz: 60 dpi: 93
    size: 527x296mm (20.7x11.7") diag: 604mm (23.8")
  Monitor-3: eDP pos: primary,bottom-l res: 1920x1080 hz: 60 dpi: 142
    size: 344x194mm (13.5x7.6") diag: 395mm (15.5")
  OpenGL: renderer: RENOIR (renoir LLVM 15.0.7 DRM 3.54 6.5.0-25-generic)
    v: 4.6 Mesa 23.2.1-1ubuntu3.1~22.04.2 direct render: Yes
Audio:
  Device-1: AMD Renoir Radeon High Definition Audio driver: snd_hda_intel
    v: kernel pcie: speed: 8 GT/s lanes: 16 bus-ID: 04:00.1 chip-ID: 1002:1637
    class-ID: 0403
  Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor
    vendor: Hewlett-Packard driver: N/A pcie: speed: 8 GT/s lanes: 16
    bus-ID: 04:00.5 chip-ID: 1022:15e2 class-ID: 0480
  Device-3: AMD Family 17h HD Audio vendor: Hewlett-Packard
    driver: snd_hda_intel v: kernel pcie: speed: 8 GT/s lanes: 16
    bus-ID: 04:00.6 chip-ID: 1022:15e3 class-ID: 0403
  Device-4: Realtek USB Audio type: USB
    driver: hid-generic,snd-usb-audio,usbhid bus-ID: 1-1.1.3:28
    chip-ID: 0bda:482a class-ID: 0300 serial: <filter>
  Sound Server-1: ALSA v: k6.5.0-25-generic running: yes
  Sound Server-2: PulseAudio v: 15.99.1 running: yes
  Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: Hewlett-Packard driver: r8169 v: kernel pcie: speed: 2.5 GT/s
    lanes: 1 port: 2000 bus-ID: 01:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: enp1s0 state: down mac: <filter>
  Device-2: MEDIATEK vendor: Foxconn driver: mt7921e v: kernel pcie:
    speed: 5 GT/s lanes: 1 port: N/A bus-ID: 02:00.0 chip-ID: 14c3:0616
    class-ID: 0280
  IF: wlp2s0 state: up mac: <filter>
  Device-3: Realtek RTL8153 Gigabit Ethernet Adapter type: USB
    driver: r8152 bus-ID: 2-1.2:14 chip-ID: 0bda:8153 class-ID: 0000
    serial: <filter>
  IF: enx644ed7125f62 state: down mac: <filter>
  IF-ID-1: vpn00056aa542 state: unknown speed: 10000 Mbps duplex: full
    mac: N/A
Bluetooth:
  Device-1: Foxconn / Hon Hai Wireless_Device type: USB driver: btusb v: 0.8
    bus-ID: 1-3:3 chip-ID: 0489:e0f2 class-ID: e001 serial: <filter>
  Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter>
    bt-v: 3.0 lmp-v: 5.2 sub-v: 2311 hci-v: 5.2 rev: 2018
Drives:
  Local Storage: total: 931.51 GiB used: 158.61 GiB (17.0%)
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 970 EVO Plus 1TB
    size: 931.51 GiB speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
    rev: 2B2QEXM7 temp: 31.9 C scheme: GPT
Partition:
  ID-1: / size: 590.12 GiB used: 158.26 GiB (26.8%) fs: ext4 dev: /dev/dm-2
    mapped: mint--vg-root
  ID-2: /boot size: 3.96 GiB used: 322.3 MiB (8.0%) fs: ext4
    dev: /dev/nvme0n1p5
  ID-3: /boot/efi size: 898.2 MiB used: 31.7 MiB (3.5%) fs: vfat
    dev: /dev/nvme0n1p1
Swap:
  ID-1: swap-1 type: partition size: 32 GiB used: 0 KiB (0.0%) priority: -2
    dev: /dev/dm-1 mapped: mint--vg-swap_1
Sensors:
  System Temperatures: cpu: 54.0 C mobo: 25.0 C gpu: amdgpu temp: 46.0 C
  Fan Speeds (RPM): N/A
Repos:
  Packages: 2338 apt: 2326 flatpak: 12
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/cappelikan-ppa-jammy.list
    1: deb [signed-by=/etc/apt/keyrings/cappelikan-ppa-jammy.gpg] https://ppa.launchpadcontent.net/cappelikan/ppa/ubuntu jammy main
  Active apt repos in: /etc/apt/sources.list.d/mongodb-org-7.0.list
    1: deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-7.0.gpg ] https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0 multiverse
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
    1: deb http://packages.linuxmint.com virginia main upstream import backport
    2: deb http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
    3: deb http://archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
    4: deb http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
    5: deb http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
Info:
  Processes: 432 Uptime: 3h 22m wakeups: 1 Init: systemd v: 249 runlevel: 5
  Compilers: gcc: 11.4.0 alt: 11/12 Shell: Bash v: 5.1.16
  running-in: gnome-terminal inxi: 3.3.13

[SMG]

How can i clear the settings which Linux has for the external monitors? (it remembers the settings somewhere).

Linux-based distros have hot-plug capability. They do not "remember a setting". They get the EDID from the monitor (which passes through the cable to the computer) and then provides those EDID options.

The more hardware in between the monitor and the computer, the more likely there will be glitches and issues. What is the make and model of the dock? And how is it connected to the laptop?