NVIDIA Graphics Driver Server Settings to Allow 2nd Monitor

[ArsonArrow]

So in order after installing NVIDIA driver 575 open in the Driver Manager, the HDMI port on my gets disabled. I am now attempting to re-enable it through the NVIDIA X Server Settings. Problem is that in order for me to enable the port by creating new X screen, I need to apply the changes, which in order to do that, I need to save the configuration by "Save to X Configuration File" before restarting (whether it's restart the PC or the program, idk). Then I try to save it to one of the files in the attached screenshots and it always gives me the same "unable to open X config file for writing" error message.

The best solution I can think of right now is setting a file in that directory with a write permission with chmod, but I tried that and I don't really know what I'm doing there.

If there is an easier solution I am not thinking of here, please let me know. Thanks!

 

[Alexzee]

I've got some questions to find out some information to help you. BTW, this is not my area of expertise.

Our member @osprey schooled me on the xorg config file and some other good things related to monitors.
Also, our member @f33dm3bits may be able to assist as well.

The screenshot that says unable to open xconf for writing....means you'll have to open it with a text editor to see it.

What's the output of:

xrandr

Have a look in your /etc/X11/xorg.conf.d/ is the directory empty?
Look in your X11 config. What's in that directory?

cd /usr/share/X11/xorg.conf.d
Then type:
ls and press enter

You are partially right about saving the config file. However until I can see the output of the commands I'm not sure if you need to make an xorg snippet file yet.

Another thing that comes to mind is which driver is your current kernel using? Is the Nvidia 575 driver installed?
Conflict with drivers can cause a device to not work if the wrong driver is loading first.
Run these commands and post the output please.

lspci -k | grep -EA3 'VGA|3D|Display'

    modinfo nvidia | grep version

What distribution are you using and what monitor's (exact model) do you have?

 

[CaffeineAddict]

Problem is you're running Nvidia cpanel as standard user but xorg drop in directory is owned by root.
So running the cpanel as root should fix the problem.

 

[ArsonArrow]

I've got some questions to find out some information to help you. BTW, this is not my area of expertise.

Our member @osprey schooled me on the xorg config file and some other good things related to monitors.
Also, our member @f33dm3bits may be able to assist as well.

The screenshot that says unable to open xconf for writing....means you'll have to open it with a text editor to see it.

What's the output of:

xrandr

Have a look in your /etc/X11/xorg.conf.d/ is the directory empty?
Look in your X11 config. What's in that directory?

cd /usr/share/X11/xorg.conf.d
Then type:
ls and press enter

You are partially right about saving the config file. However until I can see the output of the commands I'm not sure if you need to make an xorg snippet file yet.

Another thing that comes to mind is which driver is your current kernel using? Is the Nvidia 575 driver installed?
Conflict with drivers can cause a device to not work if the wrong driver is loading first.
Run these commands and post the output please.

lspci -k | grep -EA3 'VGA|3D|Display'

    modinfo nvidia | grep version

What distribution are you using and what monitor's (exact model) do you have?

Here's the list of files in /etc/X11/xorg.conf.d/:

• 10-amdgpu.conf
• 10-nvidia.conf
• 10-quirks.conf
• 10-radeon.conf
• 40-libinput.conf
• 70-wacom.conf

Here's the driver and graphics card info:

 

[f33dm3bits]

So in order after installing NVIDIA driver 575 open in the Driver Manager, the HDMI port on my gets disabled

If there is an easier solution I am not thinking of here, please let me know. Thanks!

Have you tried logging into a Wayland session instead of an X11 session, since I see you are using KDE Plasma with X11?

 

[ArsonArrow]

Have you tried logging into a Wayland session instead of an X11 session, since I see you are using KDE Plasma with X11?

I haven't, how does Wayland work with where I'm at so far?

 

[f33dm3bits]

I haven't, how does Wayland work with where I'm at so far?

You can check if your HDMI does not get disabled when running under a Wayland session.

 

[Alexzee]

Here's the list of files in /etc/X11/xorg.conf.d/:

• 10-amdgpu.conf
• 10-nvidia.conf
• 10-quirks.conf
• 10-radeon.conf
• 40-libinput.conf
• 70-wacom.conf

Here's the driver and graphics card info:
View attachment 27400

Thanks!

 

[Alexzee]

When you can ArsonArrow, try logging into a Wayland session like @f33dm3bits has suggested and let us know if the HDMI is disabled or not.

Somewhere on the login page (either at the top right or bottom right) you should see a gear.
Click on that gear to switch from X11 to Wayland. Then login and upon doing so, you should be in a Wayland session.

Also, pull up your Xorg.log it should be in /var/log > Xorg.0.log and see if the 2nd monitor is being seen.
See the screenshot of my system where the G27f (my Gigabyte monitor) is showing and highlighted.

 

[yyg]

Problem is you're running Nvidia cpanel as standard user but xorg drop in directory is owned by root.
So running the cpanel as root should fix the problem.

Do you think this could be affecting my second monitor to display even though its being read?

 

[CaffeineAddict]

Do you think this could be affecting my second monitor to display even though its being read?

I'm not sure what's your question, maybe start a new thread and provide system details and detailed problem description.
For system info, include output of inxi -Fxxz