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Screens fail to automatically turn off when second monitor is connected

Graphical Environments, Managers, Multimedia & Desktop questions.
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styxxx
Posts: 19
Joined: 2013-06-03 20:24

Screens fail to automatically turn off when second monitor is connected

#1 Post by styxxx »

Hi,

I got a new laptop with a fresh debian installation. When idle the screens should turn off after the screensaver was shown for a few minutes. It worked fine with my old laptop. But with the new one if fails when an external monitor is connected (HDMI). Instead of turning off the displays, the screensaver is deactivated as if someone was touching the keyboard or mouse. The screens never are turned off. Also the laptop never goes into standby which should happen after further idling. So it's really like the idle time was interrupted.

kern.log shows only this entry (multiple times) for that time:

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[drm] Unknown EDID CEA parser results
Without the second monitor it works as expected. It also worked without issues with other laptops before (and the same external monitor).

"xset dpms force off" works: both screens turn off. [ edit: does not work. After a few seconds (I guess when the external monitor actually would shut down, both screens wake up and the desktop is shown) ]

I don't know how to find out what's causing it. Any ideas?

Thanks :)

---

Laptop is: HP 17-cp1453ng, external monitor AOC i2352Vh
CPU: 6-core AMD Ryzen 5 5625U with Radeon Graphics (-MT MCP-)

Running debian testing with mate desktop
6.1.0-6-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.15-1 (2023-03-05) x86_64 GNU/Linux

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Graphics:
  Device-1: AMD Barcelo vendor: Hewlett-Packard driver: amdgpu v: kernel
    arch: GCN-5 code: Vega process: GF 14nm built: 2017-20 pcie: gen: 3
    speed: 8 GT/s lanes: 16 link-max: gen: 4 speed: 16 GT/s ports:
    active: HDMI-A-1,eDP-1 empty: DP-1,DP-2 bus-ID: 03:00.0 chip-ID: 1002:15e7
    class-ID: 0300 temp: 42.0 C
  Device-2: Luxvisions Innotech HP TrueVision HD Camera type: USB
    driver: uvcvideo bus-ID: 1-3:2 chip-ID: 30c9:0064 class-ID: fe01
    serial: 0001
  Display: x11 server: X.Org v: 1.21.1.7 compositor: Compiz v: 0.8.18
    driver: X: loaded: amdgpu dri: radeonsi gpu: amdgpu display-ID: :0
    screens: 1
  Screen-1: 0 s-res: 3520x1080 s-dpi: 96 s-size: 931x286mm (36.65x11.26")
    s-diag: 974mm (38.34")
  Monitor-1: HDMI-A-1 mapped: HDMI-A-0 pos: top-right model: AOC i2352Vh
    serial: DJNC8JA001350 built: 2012 res: 1920x1080 hz: 60 dpi: 96 gamma: 1.2
    size: 509x286mm (20.04x11.26") diag: 584mm (23") ratio: 16:9 modes:
    max: 1920x1080 min: 720x400
  Monitor-2: eDP-1 mapped: eDP pos: primary,bottom-l
    model: BOE Display 0x0954 built: 2020 res: 1600x900 hz: 60 dpi: 106
    gamma: 1.2 size: 382x215mm (15.04x8.46") diag: 438mm (17.3") ratio: 16:9
    modes: max: 1600x900 min: 640x480
  API: OpenGL v: 4.6 Mesa 22.3.6 renderer: AMD Radeon Graphics (renoir LLVM
    15.0.6 DRM 3.49 6.1.0-6-amd64) direct-render: Yes
Installed packages that might be relevant:

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ii  xserver-xorg                                1:7.7+23                             amd64        X.Org X server
ii  xserver-xorg-core                           2:21.1.7-1                           amd64        Xorg X server - core server
ii  xserver-xorg-input-all                      1:7.7+23                             amd64        X.Org X server -- input driver metapackage
ii  xserver-xorg-input-libinput                 1.2.1-1+b1                           amd64        X.Org X server -- libinput input driver
ii  xserver-xorg-input-synaptics                1.9.2-1+b1                           amd64        Synaptics TouchPad driver for X.Org server
ii  xserver-xorg-input-wacom                    1.1.0-1                              amd64        X.Org X server -- Wacom input driver
ii  xserver-xorg-legacy                         2:21.1.7-1                           amd64        setuid root Xorg server wrapper
ii  mate-desktop-common                         1.26.0-1                             all          Library with common API for various MATE modules (common files)
ii  mate-power-manager                          1.26.0-2                             amd64        power management tool for the MATE desktop
ii  mate-power-manager-common                   1.26.0-2                             all          power management tool for the MATE desktop (common files)
ii  powermgmt-base                              1.37                                 all          common utils for power management
ii  amd64-microcode                             3.20191218.1                         amd64        Processor microcode firmware for AMD CPUs
ii  firmware-amd-graphics                       20210315-3                           all          Binary firmware for AMD/ATI graphics chips
ii  firmware-linux-free                         20200122-1                           all          Binary firmware for various drivers in the Linux kernel
ii  firmware-linux-nonfree                      20210315-3                           all          Binary firmware for various drivers in the Linux kernel (metapackage)
ii  firmware-misc-nonfree                       20210315-3                           all          Binary firmware for various drivers in the Linux kernel
ddcutil capabilities

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Model: AOC i2352Vh
MCCS version: 2.1
Commands:
   Op Code: 01 (VCP Request)
   Op Code: 02 (VCP Response)
   Op Code: 03 (VCP Set)
   Op Code: 07 (Timing Request)
   Op Code: 0C (Save Settings)
   Op Code: 4E (Unrecognized operation code)
   Op Code: F3 (Capabilities Request)
   Op Code: E3 (Capabilities Reply)
VCP Features:
   Feature: 02 (New control value)
   Feature: 04 (Restore factory defaults)
   Feature: 05 (Restore factory brightness/contrast defaults)
   Feature: 08 (Restore color defaults)
   Feature: 0B (Color temperature increment)
   Feature: 0C (Color temperature request)
   Feature: 10 (Brightness)
   Feature: 12 (Contrast)
   Feature: 14 (Select color preset)
      Values:
         01: sRGB
         05: 6500 K
         06: 7500 K
         08: 9300 K
         0b: User 1
   Feature: 16 (Video gain: Red)
   Feature: 18 (Video gain: Green)
   Feature: 1A (Video gain: Blue)
   Feature: 60 (Input Source)
      Values:
         01: VGA-1
         03: DVI-1
   Feature: 6C (Video black level: Red)
   Feature: 6E (Video black level: Green)
   Feature: 70 (Video black level: Blue)
   Feature: AC (Horizontal frequency)
   Feature: AE (Vertical frequency)
   Feature: B6 (Display technology type)
   Feature: C0 (Display usage time)
   Feature: C6 (Application enable key)
   Feature: C8 (Display controller type)
   Feature: C9 (Display firmware level)
   Feature: CA (OSD)
   Feature: CC (OSD Language)
      Values:
         00: Reserved value, must be ignored
         02: English
         03: French
         04: German
         05: Italian
         08: Portuguese (Portugal)
         09: Russian
         0a: Spanish
         0d: Chinese (simplified / Kantai)
   Feature: D6 (Power mode)
      Values:
         01: DPM: On,  DPMS: Off
         04: DPM: Off, DPMS: Off
   Feature: DF (VCP Version)
   Feature: 60 (Input Source)
      Values:
         01: VGA-1
         03: DVI-1
         04: DVI-2
   Feature: 62 (Audio speaker volume)
   Feature: 8D (Audio Mute)
      Values:
         01: Mute the audio
         02: Unmute the audio
   Feature: FF (Manufacturer specific feature)

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