Nvidia lightboost on a 144hz monitor, need help with xorg.conf

coralfang · 05-28-2018, 01:48 PM

I managed to get rid of xorg.conf completely and resort to a few lines in /etc/X11/xorg.d/10-nvidia.conf and loading a dumped EDID directly.
eg;

Code:

Option         "CustomEDID" "DVI-D-0:/etc/X11/EDID.bin"

Someone elsewhere suggested to dump the EDID that was configured on Windows. I did that, and dumped the EDID.bin into /etc/X11/EDID.bin

This appears to have lowered to amount of blur when scrolling, but ironically, the 144hz mode is less blurry than the 120hz/lightboost mode, which shouldn't be the case. It is still far from the blur-free and ghosting-free experience that i get whilst booted into Windows.

Code:

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "metamodes" "1920x1080_120 +0+0 { ForceFullCompositionPipeline = On }"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTX 1060 3GB"
    Option         "CustomEDID" "DVI-D-0:/etc/X11/EDID.bin"
EndSection

So now i have the same EDID running on both Linux and Windows, but the problem still persists... not sure where to look next.

business_kid · 05-29-2018, 02:30 AM

10-nvidia, I would make that 10-nvidia.conf. Such may be important. I would also check that no other files in xorg.conf.d mention video.

Have you filed a bug in the Nvidia driver? I would also recommend that.I wouldn't be surprised to see them optimize the windows driver and not even give the Linux programmer a light boost monitor to play with.

coralfang · 05-29-2018, 09:54 AM

Quote:

Originally Posted by business_kid

10-nvidia, I would make that 10-nvidia.conf. Such may be important. I would also check that no other files in xorg.conf.d mention video.

Have you filed a bug in the Nvidia driver? I would also recommend that.I wouldn't be surprised to see them optimize the windows driver and not even give the Linux programmer a light boost monitor to play with.

Yes, it is *.conf

Quote:

/etc/X11/xorg.d/10-nvidia.conf

And for now it is also the only *.conf file present in that directory.

As for filing bugs with nvidia, what's the best place to go about this? For one, their forum doesn't let me sign up to post in the Linux section. I don't believe they hav a mailing list or public bug tracker either?

coralfang · 05-30-2018, 02:11 PM

Right, so i've discovered something just an hour ago. I'll post this here hoping someoen else with the same problem can see if this solution works for them;

Firefox has a config setting labelled "layout.frame_rate". This is set to "-1" by default, which should correspond to the refresh rate of the monitor in terms of vsync values. However, this doesn't seem to work. So i believe firefox was getting capped to 60hz / 60fps.

So go to about:config in the browser, and then set "layout.frame_rate" to 120. Being the 120hz refresh rate i am using with the lightboost feature. This works!
Firefox is now as crystal clear as it is on Windows10. Which i've confirmed by viewing this ghosting test: https://www.testufo.com/ghosting , all 3 panes are moving without any motion blur.

So it appears that firefox is somehow not correctly setting this value, and it needs to be manually adjusted for monitors higher than 60hz.

EDIT: I've posted a bunch of information here relating to set up this monitor on Linux; Along with the EDID.bin i am using; If you're using this monitor on Linux and looking to fix the problems hi-lighted in this thread, i recommend having a look here for some solutions.
https://github.com/Jigoku/Acer-GN246HL-linux

business_kid · 05-31-2018, 02:31 AM

Quote:

Originally Posted by coralfang

Yes, it is *.conf
And for now it is also the only *.conf file present in that directory.

As for filing bugs with nvidia, what's the best place to go about this? For one, their forum doesn't let me sign up to post in the Linux section. I don't believe they hav a mailing list or public bug tracker either?

In those circumstances I have googled for an email or support forums. I figured out some major issues that way.