Monitor (refresh frequency) overclocking in Linux is not available

Graphics / Linux Linux
1

My IPS monitor supports a 75Hz refresh rate under Windows and I’ve no idea how to enable it under Linux.

In Linux nvidia-settings offers refresh rates only from interlaced 50Hz to 60Hz.

In Windows I just run NVIDIA control panel, click “Add a custom refresh rate”, specify 75Hz, hit apply and everything just works. Not so much in Linux.

I tried entering my monitor HorizSync and VertRefresh values into nvidia.conf but that didn’t help.

2

Use

Option "ModeValidation" "AllowNonEdidModes"

to unlock.

3

Well, I’ve done everything pretty much manually and here’s how it goes:

$ cat nvidia.conf
Section "Device"
        Identifier      "Videocard0"
        BusID           "PCI:1:0:0"
        Driver          "nvidia"
        VendorName      "NVIDIA"
        BoardName       "NVIDIA Corporation GP106 [GeForce GTX 1060 6GB] (rev a1)"
        Option          "Coolbits" "28"
        Option          "metamodes" "nvidia-auto-select +0+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}"
        Option          "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x2222; PowerMizerLevel=0x3; PowerMizerDefault=0x3; PowerMizerDefaultAC=0x3"
        Option          "UseNvKmsCompositionPipeline" "Off"
        Option          "TripleBuffer" "On"
# Doesn't work or help anymore
#       Option          "RegistryDwords" "RMUseSwI2c=0x01; RMI2cSpeed=100"
        Option          "UseEDIDFreqs" "Off"
EndSection

Section "Screen"
    Option          "ModeValidation" "AllowNonEdidModes,NoEdidMaxPClkCheck,NoMaxPClkCheck"
    Monitor        "Monitor"
    Identifier     "Screen"
    Device         "Device"
EndSection

Section "Monitor"
    Identifier     "Monitor"
    HorizSync       30-83
    VertRefresh     56-75
EndSection

And then this script.

4

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