Journalctl GDM still showing lots connected message of one Monitor.

I noticed this lately when I wondered, why the system became a bit sluggish. I have this issue with NVIDIA driver 430.14-1 and 390xx I tried from mhwd.

With Driver 340xx, the message does not show up, but some application do not open anymore (for example Linphone)

I have two monitors connected, one with HDMI and the other with DVI. The complains only come from the one with DVI.

Jun 13 12:09:07 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:08 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:10 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:10 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:10 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:10 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:10 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:10 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:10 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:10 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:12 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:12 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:12 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:12 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:12 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:12 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:12 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:12 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:13 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:13 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:13 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:13 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:13 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:13 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:13 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:13 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:14 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:14 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:14 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock
Jun 13 12:09:14 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0):
Jun 13 12:09:14 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): connected
Jun 13 12:09:14 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): Internal TMDS
Jun 13 12:09:14 gerstrong-desktop /usr/lib/gdm-x-session[913]: (--) NVIDIA(GPU-0): HP w20 (DFP-0): 330.0 MHz maximum pixel clock

Is there a way to at least disable that kind of logging (verbosity) if it cannot be fixed?

Playing around a bit with this:

https://www.ctrl.blog/entry/systemd-log-levels.html

I will try to disable this message for now. Not really a solution, but at least no more flooding of messages. Other than that, my system runs fine, just a bit more sluggish than usual.

I modified the file /usr/lib/systemd/system/gdm.service

now it looks like this:

[Unit]
Description=GNOME Display Manager

# replaces the getty
Conflicts=getty@tty1.service
After=getty@tty1.service

# replaces plymouth-quit since it quits plymouth on its own
Conflicts=
After=

# Needs all the dependencies of the services it's replacing
# pulled from getty@.service and
# (except for plymouth-quit-wait.service since it waits until
# plymouth is quit, which we do)
After=rc-local.service plymouth-start.service systemd-user-sessions.service

# GDM takes responsibility for stopping plymouth, so if it fails
# for any reason, make sure plymouth still stops
OnFailure=plymouth-quit.service

[Service]
ExecStart=/usr/bin/gdm
KillMode=mixed
Restart=always
IgnoreSIGPIPE=no
BusName=org.gnome.DisplayManager
#StandardOutput=syslog
#StandardError=inherit
EnvironmentFile=-/etc/locale.conf
ExecReload=/bin/kill -SIGHUP $MAINPID
KeyringMode=shared
StandardOutput=null
StandardError=null

[Install]
Alias=display-manager.service

After that I did a systemctl daemon-reload and rebooted my system, it is still logging that message. How can I disable that annoying message? Please help.

by not trying to hide it and fixing the underlying issue instead. can you post some system info

inxi -Fxxxz
cat /etc/X11/xorg.conf.d/*.conf
hwinfo --monitor
xrandr --prop

you may need to install hwinfo and xorg-xrandr if they are not already installed. if you figure out the issue you can stop the constant polling that's producing those messages.

Agreed!

Output of inxi -Fxxxz is

 System:    Host: gerstrong-desktop Kernel: 4.19.49-1-MANJARO x86_64 bits: 64 compiler: gcc v: 8.3.0 
            Desktop: Gnome 3.32.2 wm: gnome-shell dm: GDM 3.32.0 Distro: Manjaro Linux 
 Machine:   Type: Desktop Mobo: Gigabyte model: H97M-HD3 v: x.x serial: <filter 
            UEFI: American Megatrends v: F5 date: 06/26/2014 
 CPU:       Topology: Quad Core model: Intel Core i5-4690 bits: 64 type: MCP arch: Haswell rev: 3 
            L2 cache: 6144 KiB 
            flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 28010 
            Speed: 2930 MHz min/max: 800/3900 MHz Core speeds (MHz): 1: 2153 2: 2322 3: 2030 4: 2061 
 Graphics:  Device-1: NVIDIA GK208B [GeForce GT 730] vendor: Gigabyte driver: nvidia v: 430.14 
            bus ID: 01:00.0 chip ID: 10de:1287 
            Display: x11 server: X.Org 1.20.5 driver: nvidia compositor: gnome-shell 
            resolution: 1920x1080~60Hz 
            OpenGL: renderer: GeForce GT 730/PCIe/SSE2 v: 4.6.0 NVIDIA 430.14 direct render: Yes 
 Audio:     Device-1: Intel 9 Series Family HD Audio vendor: Gigabyte driver: snd_hda_intel v: kernel 
            bus ID: 00:1b.0 chip ID: 8086:8ca0 
            Device-2: NVIDIA GK208 HDMI/DP Audio vendor: Gigabyte driver: snd_hda_intel v: kernel 
            bus ID: 01:00.1 chip ID: 10de:0e0f 
            Device-3: Logitech Webcam C170 type: USB driver: snd-usb-audio,uvcvideo bus ID: 2-9:4 
            chip ID: 046d:082b 
            Device-4: C-Media type: USB driver: hid-generic,snd-usb-audio,usbhid bus ID: 2-4.4:5 
            chip ID: 0d8c:01a7 
            Sound Server: ALSA v: k4.19.49-1-MANJARO 
 Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Gigabyte 
            driver: r8168 v: 8.047.01-NAPI port: d000 bus ID: 03:00.0 chip ID: 10ec:8168 
            IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: <filter 
 Drives:    Local Storage: total: 5.91 TiB used: 3.22 TiB (54.4%) 
            ID-1: /dev/sda vendor: Samsung model: SSD 750 EVO 500GB size: 465.76 GiB speed: 6.0 Gb/s 
            serial: <filter rev: 1B6Q scheme: GPT 
            ID-2: /dev/sdb vendor: Seagate model: ST3000VX000-1CU166 size: 2.73 TiB speed: 6.0 Gb/s 
            rotation: 7200 rpm serial: <filter rev: CV22 scheme: GPT 
            ID-3: /dev/sdc vendor: Seagate model: ST3000DM001-1E6166 size: 2.73 TiB speed: 6.0 Gb/s 
            rotation: 7200 rpm serial: <filter rev: SC47 scheme: GPT 
 Partition: ID-1: / size: 440.28 GiB used: 221.61 GiB (50.3%) fs: ext4 dev: /dev/sda2 
            ID-2: swap-1 size: 17.14 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda3 
 Sensors:   System Temperatures: cpu: 51.0 C mobo: N/A gpu: nvidia temp: 43 C 
            Fan Speeds (RPM): N/A gpu: nvidia fan: 46% 
 Info:      Processes: 257 Uptime: 1h 08m Memory: 15.58 GiB used: 3.42 GiB (21.9%) Init: systemd 
            v: 242 Compilers: gcc: 8.3.0 clang: 8.0.0 Shell: bash v: 5.0.7 running in: gnome-terminal 
            inxi: 3.0.34 

With cat /etc/X11/xorg.conf.d/*.conf I get

# Read and parsed by systemd-localed. It's probably wise not to edit this file
# manually too freely.
 Section "InputClass"
         Identifier "system-keyboard"
         MatchIsKeyboard "on"
         Option "XkbLayout" "de"
         Option "XkbModel" "pc105"
 EndSection
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 430.14
 
 Section "ServerLayout"
     Identifier     "Layout0"
     Screen      0  "Screen0"
     InputDevice    "Keyboard0" "CoreKeyboard"
     InputDevice    "Mouse0" "CorePointer"
 EndSection
 
 Section "Files"
 EndSection
 
 Section "InputDevice"
     # generated from default
     Identifier     "Mouse0"
     Driver         "mouse"
     Option         "Protocol" "auto"
     Option         "Device" "/dev/psaux"
     Option         "Emulate3Buttons" "no"
     Option         "ZAxisMapping" "4 5"
 EndSection
 
 Section "InputDevice"
     # generated from default
     Identifier     "Keyboard0"
     Driver         "kbd"
 EndSection
 
 Section "Monitor"
     Identifier     "Monitor0"
     VendorName     "Unknown"
     ModelName      "Unknown"
     Option         "DPMS"
 EndSection
 
 Section "Device"
     Identifier     "Device0"
     Driver         "nvidia"
     VendorName     "NVIDIA Corporation"
 	Option "NoLogo" "1"
 EndSection
 
 Section "Screen"
     Identifier     "Screen0"
     Device         "Device0"
     Monitor        "Monitor0"
     DefaultDepth    24
     SubSection     "Display"
         Depth       24
     EndSubSection
 EndSection
 
 Section "Extensions"
     Option         "COMPOSITE" "Enable"
 EndSection
 
  
 Section "InputClass"
     Identifier          "Keyboard Defaults"
     MatchIsKeyboard        "yes"
     Option              "XkbOptions" "terminate:ctrl_alt_bksp"
 EndSection
  
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 415.25
 
 Section "ServerLayout"
     Identifier     "Layout0"
     Screen      0  "Screen0" 0 0
     InputDevice    "Keyboard0" "CoreKeyboard"
     InputDevice    "Mouse0" "CorePointer"
     Option         "Xinerama" "0"
 EndSection
 
 Section "Files"
 EndSection
 
 Section "InputDevice"
     # generated from default
     Identifier     "Mouse0"
     Driver         "mouse"
     Option         "Protocol" "auto"
     Option         "Device" "/dev/psaux"
     Option         "Emulate3Buttons" "no"
     Option         "ZAxisMapping" "4 5"
 EndSection
 
 Section "InputDevice"
     # generated from default
     Identifier     "Keyboard0"
     Driver         "kbd"
 EndSection
 
 Section "Monitor"
     # HorizSync source: edid, VertRefresh source: edid
     Identifier     "Monitor0"
     VendorName     "Unknown"
     ModelName      "HP w20"
     HorizSync       24.0 - 81.0
     VertRefresh     48.0 - 76.0
     Option         "DPMS"
 EndSection
 
 Section "Device"
     Identifier     "Device0"
     Driver         "nvidia"
     VendorName     "NVIDIA Corporation"
     BoardName      "GeForce GT 730"
 EndSection
 
 Section "Screen"
     Identifier     "Screen0"
     Device         "Device0"
     Monitor        "Monitor0"
     DefaultDepth    24
     Option         "Stereo" "0"
     Option         "nvidiaXineramaInfoOrder" "DFP-1"
     Option         "metamodes" "DVI-D-0: 1680x1050_60_0 +1920+30 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}, HDMI-0: nvidia-auto-select +0+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}"
     Option         "SLI" "Off"
     Option         "MultiGPU" "Off"
     Option         "BaseMosaic" "off"
     SubSection     "Display"
         Depth       24
     EndSubSection
 EndSection

with xrandr --prop I get

 Screen 0: minimum 8 x 8, current 3600 x 1080, maximum 16384 x 16384
 VGA-0 disconnected (normal left inverted right x axis y axis)
 	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
 	BorderDimensions: 4 
 		supported: 4
 	Border: 0 0 0 0 
 		range: (0, 65535)
 	SignalFormat: VGA 
 		supported: VGA
 	ConnectorType: VGA 
 	ConnectorNumber: 2 
 	_ConnectorLocation: 2 
 	non-desktop: 0 
 		supported: 0, 1
 DVI-D-0 connected 1680x1050+1920+0 (normal left inverted right x axis y axis) 430mm x 270mm
 	_MUTTER_PRESENTATION_OUTPUT: 0 
 	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
 	EDID: 
 		00ffffffffffff0022f0ab2601010101
 		02110103802b1b78eed105a655479d25
 		155054a56b807100814081809500a900
 		b3000101010121399030621a274068b0
 		e604b10e1100001c000000fd00304c18
 		5110000a202020202020000000fc0048
 		50207732300a202020202020000000ff
 		00434e54373032383143380a202000e8
 	BorderDimensions: 4 
 		supported: 4
 	Border: 0 0 0 0 
 		range: (0, 65535)
 	SignalFormat: TMDS 
 		supported: TMDS
 	ConnectorType: DVI-D 
 	ConnectorNumber: 0 
 	_ConnectorLocation: 0 
 	non-desktop: 0 
 		supported: 0, 1
    1680x1050     59.95 +  59.95* 
    1600x1000     60.00  
    1440x900      59.89  
    1280x1024     75.02    60.02  
    1280x960      60.00  
    1152x720      60.00  
    1024x768      75.03    60.00  
    800x600       75.00    60.32  
    640x480       75.00    59.94  
 HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 600mm x 340mm
 	_MUTTER_PRESENTATION_OUTPUT: 0 
 	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
 	EDID: 
 		00ffffffffffff001e6d155801010101
 		01150103803c2278ea7b65a4554aa227
 		0c5054210800714081c0810081809500
 		9040a9c0b300023a801871382d40582c
 		450058542100001e000000fd00383d1e
 		530f000a202020202020000000fc0045
 		323737300a20202020202020000000ff
 		000a2020202020202020202020200117
 		02031df14a900403011412051f101323
 		0907078301000065030c001000023a80
 		1871382d40582c4500fe221100001e01
 		1d8018711c1620582c2500fe22110000
 		9e011d007251d01e206e285500fe2211
 		00001e8c0ad08a20e02d10103e9600fe
 		22110000180000000000000000000000
 		000000000000000000000000000000e6
 	BorderDimensions: 4 
 		supported: 4
 	Border: 0 0 0 0 
 		range: (0, 65535)
 	SignalFormat: TMDS 
 		supported: TMDS
 	ConnectorType: HDMI 
 	ConnectorNumber: 1 
 	_ConnectorLocation: 1 
 	non-desktop: 0 
 		supported: 0, 1
    1920x1080     60.00*+  59.94    50.00    60.05    60.00    50.04  
    1680x1050     59.95  
    1600x900      60.00  
    1440x900      59.89  
    1400x1050     59.98  
    1280x1024     60.02  
    1280x800      59.81  
    1280x720      60.00    59.94    50.00  
    1152x864      60.00  
    1024x768      60.00  
    800x600       60.32  
    720x576       50.00  
    720x480       59.94  
    640x480       59.94    59.93  

The command hwinfo --monitor doesn't give me any output.

If there is a way to solve that issue, it would be great.

when you post terminal output use the </> button above the post entry box so its formatted properly. the way it is now is very difficult to make sense of. you can also edit the post and add 3 backtics ``` above and below the terminal output to do the same thing.

from what i can tell from the outputs you posted is that you have at least 2 xorg configurations for nvidia which is most likely causing your issues. please post:

mhwd -li
ls -laR /etc/X11
nvidia-xconfig -c /etc/X11/mhwd.d/nvidia.conf -o ~/nvxtemp.conf --composite
cat ~/nvxtemp.conf

ok.

[gerstrong@gerstrong-desktop ~]$ mhwd -li
> Installed PCI configs:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
         network-r8168            2016.04.20                true            PCI
          video-nvidia            2018.08.09               false            PCI


Warning: No installed USB configs!
[gerstrong@gerstrong-desktop ~]$ ls -laR /etc/X11
/etc/X11:
insgesamt 44
drwxr-xr-x   5 root root  4096 13. Jun 15:27 .
drwxr-xr-x 121 root root 12288 14. Jun 09:00 ..
drwxr-xr-x   2 root root  4096 13. Jun 09:25 mhwd.d
drwxr-xr-x   3 root root  4096 12. Mär 14:38 xinit
-rw-r--r--   1 root root  1188 13. Jun 15:24 xorg.conf.backup
drwxr-xr-x   2 root root  4096 13. Jun 09:25 xorg.conf.d
-rw-r--r--   1 root root     0 13. Jun 15:27 xorg.conf.nvidia-xconfig-original

/etc/X11/mhwd.d:
insgesamt 16
drwxr-xr-x 2 root root 4096 13. Jun 09:25 .
drwxr-xr-x 5 root root 4096 13. Jun 15:27 ..
-rw-r--r-- 1 root root 1458 13. Jun 09:25 nvidia.conf
-rw-r--r-- 1 root root    0 13. Jun 09:25 nvidia.conf.nvidia-xconfig-original

/etc/X11/xinit:
insgesamt 28
drwxr-xr-x 3 root root 4096 12. Mär 14:38 .
drwxr-xr-x 5 root root 4096 13. Jun 15:27 ..
-rw-r--r-- 1 root root  739  4. Mär 19:31 xinitrc
drwxr-xr-x 2 root root 4096 17. Mai 10:27 xinitrc.d
-rw-r--r-- 1 root root   45  4. Mär 19:31 xserverrc

/etc/X11/xinit/xinitrc.d:
insgesamt 20
drwxr-xr-x 2 root root 4096 17. Mai 10:27 .
drwxr-xr-x 3 root root 4096 12. Mär 14:38 ..
-rwxr-xr-x 1 root root  318  9. Nov 2018  40-libcanberra-gtk-module.sh
-rwxr-xr-x 1 root root  203 11. Mai 13:13 50-systemd-user.sh

/etc/X11/xorg.conf.d:
insgesamt 24
drwxr-xr-x 2 root root 4096 13. Jun 09:25 .
drwxr-xr-x 5 root root 4096 13. Jun 15:27 ..
-rw-r--r-- 1 root root  266 30. Nov 2018  00-keyboard.conf
lrwxrwxrwx 1 root root   27 13. Jun 09:25 90-mhwd.conf -> /etc/X11/mhwd.d/nvidia.conf
-rw-r--r-- 1 root root 1798 27. Dez 20:11 95-mhwd.conf
-rw-r--r-- 1 root root 1797  2. Dez 2018  95-mhwd.conf.backup

[gerstrong@gerstrong-desktop ~]$ sudo nvidia-xconfig -c /etc/X11/mhwd.d/nvidia.conf -o ~/nvxtemp.conf --composite

Using X configuration file: "/etc/X11/mhwd.d/nvidia.conf".
New X configuration file written to '/home/gerstrong/nvxtemp.conf'
[gerstrong@gerstrong-desktop ~]$ cat ~/nvxtemp.conf
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 430.14


Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "InputClass"
    Identifier         "Keyboard Defaults"
    MatchIsKeyboard    "yes"
    Option         "XkbOptions" "terminate:ctrl_alt_bksp"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "NoLogo" "1"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Extensions"
    Option         "COMPOSITE" "Enable"
EndSection

I also was a bit surprised when I saw two configs.

I remembered having created the /etc/X11/xorg.conf.d/95-mhwd.conf file using these instructions:

https://wiki.manjaro.org/index.php?title=Simple_fix_for_screen_tearing_-_nVidia

It seems that the deleted /etc/X11/xorg.conf.d/90-mhwd.conf symlink came back somehow. Let me delete and see what happens.

Okay, I'm back, system still runs fine, but the problem with the connected monitor spitting out every second is still there.

[gerstrong@gerstrong-desktop ~]$ cat /etc/X11/xorg.conf.d/*.conf
# Read and parsed by systemd-localed. It's probably wise not to edit this file
# manually too freely.
Section "InputClass"
        Identifier "system-keyboard"
        MatchIsKeyboard "on"
        Option "XkbLayout" "de"
        Option "XkbModel" "pc105"
EndSection
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 415.25

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "HP w20"
    HorizSync       24.0 - 81.0
    VertRefresh     48.0 - 76.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GT 730"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-1"
    Option         "metamodes" "DVI-D-0: 1680x1050_60_0 +1920+30 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}, HDMI-0: nvidia-auto-select +0+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

ok, backup the 95-mhwd.conf somewhere and remove it from /etc/X11/xorg.conf.d/ along with any other gpu configurations in there. then run this:

nvidia-xconfig --force-generate -o /etc/X11/xorg.conf.d/99-nvidia.conf --composite --no-connect-to-acpid --use-edid --no-use-events --xinerama

reboot after, if errors are still happening try running xrandr --auto from terminal and see if they stop.

Using that conf file I cannot login through gdm. I just get a black screen with the cursor, nothing more.

Another point concerning your driver:

That is a fermi-based GPU. You should use the nvidia-390xx driver, as fermi-based GPUs are unsupported from 396xx onward see:

1 Like

Too bad, but the 390 series driver has the same issue. Only with 340 I don't have that problem. Using 340 though has other drawbacks. Some qt apps like linphone do not work. It could be OpenGL related, not sure...

Commander Genius shows black screen when using OpenGL but runs fine when SDL 2.0 is completely used with driver 340.

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