Trying to enable coolbits 28 / overclocking / on system with intel connected monitor

Graphics / Linux Linux
1

Hello,
Driver 520, Ubuntu 20.04 / 5.15.0-52

System with Intel GPU where monitor connected and 3 NVIDIA cards.

I’m trying to enable overclocking (mem freq & cpu greq ) for my NVIDIA cards on the desktop system. I’m trying to apply "Option “Coolbits” “28” " to nvidia cards different ways:

user@pcc:/usr/share/X11/xorg.conf.d$ ls
10-amdgpu.conf  10-nvidia.conf  10-quirks.conf  10-radeon.conf  11-nvidia-offload.conf  40-libinput.conf  51-synaptics-quirks.conf  70-synaptics.conf  70-wacom.conf  nvidia-options.conf
user@pc:/usr/share/X11/xorg.conf.d$ cat nvidia-options.conf 
Section "OutputClass"
    Identifier "nvidia-options"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    Option "Coolbits" "28"
EndSectionuser@pc:/usr/share/X11/xorg.conf.d$ cat 10-nvidia.conf 
Section "OutputClass"
    Identifier "nvidia"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    Option "AllowEmptyInitialConfiguration"
    Option "Coolbits" "28"
    ModulePath "/usr/lib/x86_64-linux-gnu/nvidia/xorg"
EndSection

user@pc:/usr/share/X11/xorg.conf.d$ sudo cat 11-nvidia-offload.conf 
# DO NOT EDIT. AUTOMATICALLY GENERATED BY gpu-manager

#Section "ServerLayout"
#    Identifier "layout"
#    Option "AllowNVIDIAGPUScreens"
#EndSection

As you an see, I comment out Option “AllowNVIDIAGPUScreens” and everything else from 11-nvidia-offload.conf AND removed nvidia-prime ( apt-get remove nvidia-prime ) from the system to not rewrite this 11-nvidia-offload file. Also I read that with NVIDIA PRIME coolbits can not work. But still no success!

Xorg.log

The problem is "(WW) NVIDIA(G2): Option “Coolbits” is not used "

p.s. I also tried to create my own /etc/X11/xorg.conf by " nvidia-xconfig -a --cool-bits=28 ", but the system can not boot with this xorg.conf as nvidia-config does not add “intel” card to it. If I did it myself by adding monitor, screen and device with “intel” drive, after restart graphics I see blank screen…

Please, help… Is there any way to enable overclocking and have intel card enabled with connected monitor.
p.p.s. BTW, I tried to connect monitor to NVIDIA card, but can not boot at all, because monitor switched off (not possible to the BIOS screen)…

2

Please try this:
set nogpumanager kernel parameter
use xorg.conf

Section "ServerLayout"
    Identifier     "layout"
    Screen      0  "intel" 0 0
    Screen      1  "nv1"
    Screen      2  "nv2"
    Screen      3  "nv3"
EndSection

Section "Device"
    Identifier "Intel"
    Driver "modesetting"
    BusID "PCI:0:2:0"
EndSection

Section "Screen"
    Identifier     "intel"
    Device         "intel"
EndSection

Section "Device"
    Identifier     "nvidia1"
    Driver         "nvidia"
    BusID          "PCI:1:0:0"
    Option        "Coolbits" "28"
EndSection

Section "Screen"
    Identifier "nv1"
    Device "nvidia1"
EndSection

Section "Device"
    Identifier     "nvidia2"
    Driver         "nvidia"
    BusID          "PCI:2:0:0"
    Option        "Coolbits" "28"
EndSection

Section "Screen"
    Identifier "nv2"
    Device "nvidia2"
EndSection

Section "Device"
    Identifier     "nvidia3"
    Driver         "nvidia"
    BusID          "PCI:3:0:0"
    Option        "Coolbits" "28"
EndSection

Section "Screen"
    Identifier "nv3"
    Device "nvidia3"
EndSection

modify the busid according to your system (decimal values!).
This is only a draft, you might have to set a margin between screen 0 (intel) and screen 1 so the mouse pointer doesn’t get lost.
To access the gpus, use the -c option of nvidia settings.

Edit: driver modesetting instead of intel