[SOLVED] Wifi connection not working when NVIDIA card running

Parimad · 2021-01-10 15:39:10

Well, this is a very odd problem I noticed, I don't even know what the possible reason could be.

I have both intel integrated graphics and an nvidia card.

So whenever I launch something with my nvidia card (with prime-run) the internet connection will get super slow, to the point of not being usable. It's just the wifi that doesn't work, the rest of the system seems to be working fine.
The internet connection will continue to be superslow until I reset the connection.

I use NetworkManager for my internet connection.

I don't know if this is a wifi only problem or it is related to all kind of connections, I would try it with an ethernet cable when possible and let you know if that works properly or not.

My configuration:
My NVDIA card wasn't working properly, due to race conditions, so I added

MODULES=( i915 nvidia nvidia_drm nvidia_modeset nvidia_uvm )

to my mkinitcpio.conf as suggested, and that solved the issue, I had both cards recognized and working
That's pretty much all the configuration I made about cards

About internet I just installed NetworkManager and that was basically it, I didn't have to change anything it was working just fine.

I don't know what info I should post about this issue, so if you want me to add any info just tell me about it and I will post it.

Last edited by Parimad (2021-01-11 09:58:20)

Parimad · 2021-01-10 19:13:12

Ok, so I could test it with the ethernet cable and the connection works just fine, so it is a wifi only problem

This is my wifi controler

lspci -k
...
0c:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
	Subsystem: Intel Corporation Device 0084
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi
...

This is my wireless card

lshw -C network
  *-network
       description: Wireless interface
       product: Wi-Fi 6 AX200
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:0c:00.0
       logical name: wlp12s0
       version: 1a
       serial: a2:7b:2c:ea:be:be
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=5.4.87-1-lts firmware=50.3e391d3e.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:17 memory:c2300000-c2303fff

Does anyone have any idea what could be causing this problem??

seth · 2021-01-10 22:57:54

2.4GHz or 5GHz? Can you try the other band?
Do you have an active bluetooth device?
Does it return to fast when yo reset it *while* the nvidia chip is in use or only afterwards?

NetworkManager is super log-chatty, so look into the system journal for the relevant interval whether there're errors, reconnects etc.

Parimad · 2021-01-11 09:57:58

I only tested it in 5GHz

I tested it today again in both bands, and now it's working on both O.O, I don't know how, i didn't updated any package nm or nvidia related.

I'm in another network tho. I will mark it as solved and test it on the other network when possible to see if it works correctly, but I don't see how that could be related to fail specifically when running something in the other card

Thanks anyways

Arch Linux

#1 2021-01-10 15:39:10

[SOLVED] Wifi connection not working when NVIDIA card running

#2 2021-01-10 19:13:12

Re: [SOLVED] Wifi connection not working when NVIDIA card running

#3 2021-01-10 22:57:54

Re: [SOLVED] Wifi connection not working when NVIDIA card running

#4 2021-01-11 09:57:58

Re: [SOLVED] Wifi connection not working when NVIDIA card running

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