problems with nvidia mostly

codrut · 2025-08-15 10:11:35

I am new to Arch Linux. I am using KDE (tried Hyprland but I will get into that later) with NVidia proprietary drivers.
There are two issues preventing it from being perfect:
1. My internal CPU (Core 9 Ultra 285k) GPU is disabled. I have two NVidia RTX 4000 ADA GPUs. One of them is connected to my Alienware 4k monitor via a Display Port cable. Then my monitor is connected to my audio system via a HDMI cable. So basically I get audio passing though my monitor from the NVidia GPU. This works for me only with the NVidia proprietary drivers, it doesn't seem to work with the open source drivers. But everybody is recommending the open source drivers. Anyone knows how to solve this?
2. In KDE using either of the proprietary or open source drivers my monitor is experiencing flickering when playing YouTube videos. This seems to happen only when the refresh rate is set to 239.99 Hz, if I lower the refresh rate it seems to work. Is there anyway to fine tune this 239.99 Hz rate? I think it's a problem is slight difference between this setting and what this monitor actually supports.

Thank You!

seth · 2025-08-15 14:03:06

it doesn't seem to work with the open source drivers. But everybody is recommending the open source drivers.

nvidia-open, nouveau or nova?
The ADA chips are supported by nvidia and nvidia-open and you'd use which ever is working better, but for nvidia-open GSP (firmware) is mandatory.

You don#t get the flicker w/ hyprland?
KDE will take the mode from the EDID

for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done

You'll need https://archlinux.org/packages/extra/x86_64/v4l-utils/

But the signal rate (pclck, basically resolution*refresh rate) might just be too much for the cable (it's usually the cable) and that would affect hyprland just as much…
https://en.wikipedia.org/wiki/DisplayPo … _HDR_video

codrut · 2025-08-15 14:16:19

I have an expensive cable and it worked fine in Windows. Maybe something with NVidia drivers. I will retry the open source drivers.

seth · 2025-08-15 14:29:31

I'm afraid the price tag is not really meaningful.
"worked" or "works"?

seth wrote:

You don't get the flicker w/ hyprland?

codrut · 2025-08-15 14:58:43

It worked a couple of days ago. The cable worked for at least six months at 240 Hz, Unfortunately I have deleted Windows, Arch Linux is my only OS now

seth · 2025-08-15 15:05:14

seth wrote:

seth wrote:
You don't get the flicker w/ hyprland?

seth wrote:

for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done
You'll need https://archlinux.org/packages/extra/x86_64/v4l-utils/

codrut · 2025-08-15 15:21:08

I have performed a reinstallation using the archinstall and chose nvidia open source drivers (for Touring and +) and I have unchecked in KDE System Settings for Screen Tearing - allow in full screen mode
It is better and most importantly sound is working
I can still see some flickering only on my righ half of the taskbar and only when a video is playing. The monitor is running at 239.99 Hz.

About Hyprland, I need to loose weeks to configure everything as I don't like to use other people's config and I just don't have the time now.

codrut · 2025-08-15 16:56:28

When the PC is coming out of sleep then audio via NVidia is not working

seth · 2025-08-15 20:22:04

for Touring and +

https://en.wikipedia.org/wiki/Alan_Turing

I need to loose weeks to configure everything

You don't need to rice stuff for unixporn, just check on the flicker behavior (I've asked since you hinted at but then didn't pick up on it)

When the PC is coming out of sleep then audio via NVidia is not working

It does before the sleep?
Please post your complete system journal for the boot after this

sudo journalctl -b | curl -F 'file=@-' 0x0.st

and also the output of

aplay -lL

Arch Linux

#1 2025-08-15 10:11:35

problems with nvidia mostly

#2 2025-08-15 14:03:06

Re: problems with nvidia mostly

#3 2025-08-15 14:16:19

Re: problems with nvidia mostly

#4 2025-08-15 14:29:31

Re: problems with nvidia mostly

#5 2025-08-15 14:58:43

Re: problems with nvidia mostly

#6 2025-08-15 15:05:14

Re: problems with nvidia mostly

#7 2025-08-15 15:21:08

Re: problems with nvidia mostly

#8 2025-08-15 16:56:28

Re: problems with nvidia mostly

#9 2025-08-15 20:22:04

Re: problems with nvidia mostly

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