Solved Screen flickering with NVIDIA

Del.Mar · Mar 8, 2023

Hi mates!
I'm using NVIDIA RTX 3060 Ti, connected to my 165 Hz main monitor via DisplayPort 1.4. I'm using Xorg as my window manager, KDE5 as the desktop environment.
If I open browser or another application, screen goes blank a few seconds maybe less.
My xorg.conf

Code:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 470.86

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/sysmouse"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

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

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

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    BusID          "PCI:3:0:0"
    VendorName     "NVIDIA Corporation"
EndSection

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

My rc.conf

Code:

clear_tmp_enable="YES"
sendmail_enable="NONE"
hostname="beast"
ifconfig_re0="DHCP"
sshd_enable="YES"
ntpdate_enable="YES"
ntpd_enable="YES"
# Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
dumpdev="AUTO"
kld_list="nvidia-modeset"
dbus_enable="YES"
linux_enable="YES"

And Xorg.0.log

Code:

[  4320.534] (--) NVIDIA(GPU-0): AOC Q27G2G3R3B (DFP-0): connected
[  4320.534] (--) NVIDIA(GPU-0): AOC Q27G2G3R3B (DFP-0): Internal DisplayPort
[  4320.534] (--) NVIDIA(GPU-0): AOC Q27G2G3R3B (DFP-0): 2670.0 MHz maximum pixel clock
[  4320.534] (--) NVIDIA(GPU-0):
[  4320.539] (--) NVIDIA(GPU-0): DFP-1: disconnected
[  4320.539] (--) NVIDIA(GPU-0): DFP-1: Internal TMDS
[  4320.539] (--) NVIDIA(GPU-0): DFP-1: 165.0 MHz maximum pixel clock
[  4320.539] (--) NVIDIA(GPU-0):
[  4320.540] (--) NVIDIA(GPU-0): DFP-2: disconnected
[  4320.540] (--) NVIDIA(GPU-0): DFP-2: Internal TMDS
[  4320.540] (--) NVIDIA(GPU-0): DFP-2: 165.0 MHz maximum pixel clock
[  4320.540] (--) NVIDIA(GPU-0):
[  4320.540] (--) NVIDIA(GPU-0): DFP-3: disconnected
[  4320.540] (--) NVIDIA(GPU-0): DFP-3: Internal DisplayPort
[  4320.540] (--) NVIDIA(GPU-0): DFP-3: 2670.0 MHz maximum pixel clock
[  4320.540] (--) NVIDIA(GPU-0):
[  4320.541] (--) NVIDIA(GPU-0): DFP-4: disconnected
[  4320.541] (--) NVIDIA(GPU-0): DFP-4: Internal TMDS
[  4320.541] (--) NVIDIA(GPU-0): DFP-4: 165.0 MHz maximum pixel clock
[  4320.541] (--) NVIDIA(GPU-0):
[  4320.542] (--) NVIDIA(GPU-0): DFP-5: disconnected
[  4320.542] (--) NVIDIA(GPU-0): DFP-5: Internal TMDS
[  4320.542] (--) NVIDIA(GPU-0): DFP-5: 165.0 MHz maximum pixel clock
[  4320.542] (--) NVIDIA(GPU-0):
[  4320.542] (--) NVIDIA(GPU-0): DFP-6: disconnected
[  4320.542] (--) NVIDIA(GPU-0): DFP-6: Internal DisplayPort
[  4320.542] (--) NVIDIA(GPU-0): DFP-6: 2670.0 MHz maximum pixel clock
[  4320.542] (--) NVIDIA(GPU-0):
[  4320.543] (--) NVIDIA(GPU-0): DFP-7: disconnected
[  4320.543] (--) NVIDIA(GPU-0): DFP-7: Internal TMDS
[  4320.543] (--) NVIDIA(GPU-0): DFP-7: 165.0 MHz maximum pixel clock
[  4320.543] (--) NVIDIA(GPU-0):

T-Daemon · Mar 8, 2023

Which FreeBSD version are you running ( uname -a), and which x11/nvidia-driver version is installed?

elgrande · Mar 8, 2023

Having an xorg.conf usually is a bad idea and deprecated.

YYY__ · Mar 8, 2023

Flickering or blank screen? All apps? KDE version?

Del.Mar · Mar 8, 2023

T-Daemon said:
Which FreeBSD version are you running ( uname -a), and which x11/nvidia-driver version is installed?

Code:

$ uname -a
FreeBSD beast 13.2-RC1 FreeBSD 13.2-RC1 releng/13.2-n254563-13264ea9a370 GENERIC amd64
$ pkg info | grep nvidia
nvidia-driver-515.86.01_1      NVidia graphics card binary drivers for hardware

CuatroTorres said:
Flickering or blank screen? All apps? KDE version?

Flickering. Yes, if I open any application.

elgrande said:
Having an xorg.conf usually is a bad idea and deprecated.

Ok, try without it

YYY__ · Mar 8, 2023

You spoke of main monitor, are you using more than one monitor? Issues with refresh rate clash between monitors and adaptative sync were reported.

465712 – After upgrade to 5.27, periodic visual glitches when monitors' refresh rates don't match

bugs.kde.org

There are a dozen reports of flickering issues related with higher refresh rates . Did you try lowering the rate or turning off composition?

Del.Mar · Mar 8, 2023

CuatroTorres said:
You spoke of main monitor, are you using more than one monitor?

No, only one monitor.

CuatroTorres said:
Did you try lowering the rate or turning off composition?

Changed resolution to 1920x1080 and refresh rate 119.88*. Same behavior.
How to turn off composition?

Del.Mar · Mar 8, 2023

Found solution. Need to disable Flipping in nvidia-settings tool