Questions tagged [modprobe]

modprobe is a Linux program and used to add a loadable kernel module (LKM) to the Linux kernel or to remove an LKM from the kernel.

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modprobe btusb error

I am using a Ubuntu desktop 20.04.4 LTS with linux kernel 5.15.0-41-generic. I bought UB500 from tp-link. After plugging it doesnt turn on-off. I tried every steps exactly and following the answer ...
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kvm-ok confusing output

$ kvm-ok INFO: /dev/kvm does not exist HINT: sudo modprobe kvm_amd INFO: Your CPU supports KVM extensions KVM acceleration can be used As it suggests: $ sudo modprobe kvm_amd modprobe: ERROR: could ...
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modprobe nouveau fails, as it tries to load 'off.'

When I try modprobe nouveau I am greeted with: modprobe: ERROR: ../libkmod/libkmod-module.c:838 kmod_module_insert_module() could not find module by name='off' modprobe: ERROR: could not insert 'off': ...
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WIFI (driver) not working

I have installed Ubuntu alongside Windows. The Wifi Adapter, which works on Windows through automatic driver installation, is not working on it. Through help with a question here I installed the ...
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snd-aloop module works with modprobe but not if included in /etc/modules

I'm currently using Ubuntu 21.10 64 bit in a VM on QEMU/KVM on RHEL 8.4, system detail at end of post. I'm work with the ROC audio streamer, which works as expected when I use modprobe snd-aloop from ...
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Irium webcam Initialization failed

Besides this other problem I had with irium webcam on linux, when we close irium webcam and try to open it again we get the message: Running this command doesn't make the app work. The only way to ...
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modprobe on my Ubuntu machine: invalid option -- 'l'

I was reading the modprobe manual: https://linux.die.net/man/8/modprobe So I tried the -l flag on a few different Ubuntu machines: 18.04, 20.04.3 After getting: modprobe: invalid option -- 'l' I ...
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If I’ve already blacklisted nouveau, why is `options nouveau modeset=0` necessary?

All the instructions for disabling the Nouveau driver (for example, the official NVidia guide to using CUDA with their proprietary drivers) suggest that you create a modprobe.d file with the contents: ...
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high cpu usage from systemd-udev, tracker and modprobe after 21.10 upgrade

I see high cpu usage after upgrading to 21.10 top indicates that tracker, systemd-udev and modprobe are running continuously I also see mouse problems. I my mouse moves jerkily and I get spurious ...
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How does blacklist-nvidia.conf works?

I recently bought a ThinkPad T14 Gen2 with an MX450 and had problems with the drivers. Spoiler alert... I don't have them anymore. This is a question for information. I went into /lib/modprobe.d/...
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How to disable the internal speaker through blacklist?

I'm running the microsoft-teams-for-linux app and works fine for chat. For VoIP the mic works fine. Sound seems to be routed to the internal speaker rather than to the headset (I had the volume low ...
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Cannot modprobe wireguard on Ubuntu 20.04

Update: This seems to be a problem with my hoster (1blu). Loading the module works perfectly fine on my local computer and on my other server (a different hoster). I cannot make wireguard work on my ...
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Can't detect built-in camera after installation

I have an old laptop (>4 years)with the bare minimum to work with. I installed Lubuntu 16.04.3 LTS and so far so good, my only issue is that the built-in camera isn't being detected by any app. I'm ...
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"FATAL: Module 88x2bu not found in directory /lib/modules/5.8.0-45-generic" when I do "modprobe 88x2bu"

Helo i've been trying for many days,, but Im done I recognize I need a hand from the experts guys.. I purchased a cudy AC1300 wireless Dual Band USB adapter. and I found the right driver RTL8812BU due ...
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Wifi does not work after suspend - ubuntu 20.10 - MT7630e

I'm using Ubuntu 20.10: dsm@dsm ~> lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.10 Release: 20.10 Codename: groovy dsm@dsm ~> uname -a ...
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modprobe: FATAL: Module not found

I'm struggling to permanently insmod custom PCIe device drivers Module can be loaded manually with insmod ~\work\project\build\xdma.ko But I didn't manage to add it permanently. I copied xdma.ko ...
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dell-smm-hwmon freezes Alienware m15 r1

I have tried suggestions such as installing i8kutils and dell-bios-fan-control but it always freezes my laptop if I do sudo modprobe dell-smm-hwmon force=1 And if I try to do it without force, it ...
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Nvidia driver curiously only loads properly when booting in recovery mode (Not blacklisted, secure boot disabled)

I've been having serious trouble getting the Nvidia drivers working on my machine with Ubuntu 20.04 and 20.10. My graphics card is an RTX 2080 and my machine is an ASUS desktop. I've been getting the ...
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I accidentally deleted modprobe.d can Ubuntu won’t boot what can I do?

Nvidia driver blacklisted the open source version and I found the file. Instead of deleting that one file I accidentally deleted the entire modprobe.d folder. I rebooted and now Ubuntu 20.04 won’t ...
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Virtualbox broken after a dist-upgrade -- cannot install virtuabox-dkms nor run modprobe vboxdrv

I am running Ubuntu 20.04 and recently did a dist-upgrade. uname -r: 5.8.0-34-generic I purged Virtualbox and associate files by: sudo apt-get purge "^virtualbox-.*" After trying to ...
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How to run throttle stop script at startup?

I have tried this (How do I write a script that runs on startup?) to automatically run a throttle stop script at startup. But I cannot make it work. I've tried the methods (GUI app, cron job and /rc....
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Libkmod error - Ubuntu 18.04 doesn't start

While starting the system I'm getting the following message: libkmod: ERROR ../libkmod/libkmod-config.c:656 kmod_config_parse: /etc/modprobe.d/local.conf line 1: ignoring bad line starting with '...
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Load ashmem & kmodsign

I recently install Anbox on my Ubuntu 20.04. I found on the post Module "ashmem" doesn't load with Secure Boot on (but "binder" does load with secure boot on) that I need to ...
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modprobe: ERROR: could not insert '8192du': Unknown symbol in module, or unknown parameter (see dmesg)

I am trying to install wifi driver on Ubuntu 20.04. Following this link, after sudo modprobe 8192du, I got this error. I spent almost a day to find solutions. Please help me. modprobe: ERROR: could ...
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Delay when using modprobe v4l2loopback with ffmpeg

I will state, that for the first maybe 2/3 mins of having the camera started, it appears that the audio/video is in sync. Thats to say, there is no delay on the video. Then I hear a "click" ...
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2 answers
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ls -1 /dev/{ashmem,binder} yields anticipated result for /dev/ashmem, but an error for /dev/binder

Background In another post, I reported that: I'm running Ubuntu 20.04.1 with default kernel 5.4.0-42-generic (installed from Main) on a UEFI system. I want to load two kernel modules ("ashmem&...
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1 answer
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Module "ashmem" doesn't load with Secure Boot on (but "binder" does load with secure boot on)

Summary I'm running Ubuntu 20.04.1 with default kernel 5.4.0-42-generic (installed from Main) on a UEFI system. I want to load two kernel modules ("ashmem" and "binder") with ...
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Automated Driver Loading: Cron, Init, or Modprobe

Main Problem I am attempting to automate the loading of drivers for my system. The drivers were built manually and must be loaded manually. Another caveat is that one of the system drivers must be ...
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modprobe: ERROR: could not insert 'vboxdrv': Operation not permitted

When I type sudo modprobe vboxdrv all it shows is: modprobe: ERROR: could not insert 'vboxdrv': Operation not permitted I cant find anything to fix this. This is in Ubuntu 20.04.
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How to add modprobe command to GRUB_CMDLINE_LINUX_DEFAULT

Ubuntu 20.04 To make my WiFi happy I enter the following modprobe via the terminal; modprobe -r brcmfmac Then wait 5 seconds and modprobe brcmfmacCan I add this to a startup process so that I don't ...
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7 votes
2 answers
15k views

How do I automatically run modprobe v4l2loopback on boot?

I'm using OBS Studio and would like to have a virtual video output saved permanently so that it can be run when the application is launched. This command creates the virtual output: sudo modprobe ...
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3 answers
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How to unload a kernel module which is in use and has a recursive module dependency?

I habe a driver for my ELM 327 an it uses the pl2303 module which depends on the usbserial and this again depends on the pl2303 module. What I tried: sudo modprobe -r usbserial pl2303 sudo modprobe -...
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Screen tearing reappeared after updating form 19.10 to 20.04 (GeForce GTX 1050 Ti Mobile)

I am using an MSI GL62M 7REX laptop which has a GeForce GTX 1050 Ti Mobile graphics card. When I was using Ubuntu 19.10, I was able to deal with screen tearing in the following way: Similarly to this ...
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Ubuntu server: Cannot setup dummy driver alsa (LXC container) // modprobe issue [duplicate]

I'm trying to setup alsa on my ubuntu server, but it seems that the drivers are not installed & I don't know how to solve this problem. I just wanna setup a dummy soundcard. But I really don't ...
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2 votes
1 answer
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How do I write a script that runs on startup?

Newbie here. I have a Dell Inspiron 3442 who suffers from the "CPU stuck at 800Mhz" problem. In Windows, I used to run ThrottleStop at every startup and disable BD PROCHOT... So I installed Ubuntu ...
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2 votes
0 answers
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How do I debug errors with enabling the NFS kernel module?

I am running Ubuntu 18.04 LTS and wanted to use an NFS shared drive. On most of my servers it just simply worked with sudo modprobe nfs. But on this specific server, which was set up exactly the ...
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3 votes
2 answers
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softdep for vfio-pci wont work

I'm trying to do passthrough so my devices are grabbed by vfio-pci before any other module. Here's my /etc/modprobe.d/01-vfio-pci.conf: softdep nouveau pre: vfio-pci softdep nvidiafb pre: vfio-pci ...
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5 votes
1 answer
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Ubuntu equivalent of mkinitcpio.conf

I have a sh script that should be executed during system boot, as I understand before graphic driver modules are loaded. Probably this is not relevant for the answer, but this script serves for PCI ...
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1 vote
0 answers
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unable to load the module for vfat support with modprobe

I'm doing a lab in this course and I'm asked to : "Load the module for vfat support; does it have any dependencies ?" The answer for this lab is these commands : modprobe vfat modinfo vfat lsmod ...
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Sign iwlwifi kernel module for SecureBoot

After a kernel update of Kubuntu 19.10 (i.e., via normal updates), wifi has stopped working, and the driver is not loaded anymore. I have tried to run sudo modprobe -v iwlwifi unsuccessfully with this ...
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2 votes
0 answers
256 views

Stop modprobe spam

I setup GPU passthrough, it works, but ubuntu is spamming modprobe processes, it consumes lot of CPU, this is log from dmesg: [22014.015852] PKCS#7 signature not signed with a trusted key [22014....
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9 votes
1 answer
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Can't load wireguard module

I have a VPS server running Ubuntu 18.04 LTS where I wanted to install a WireGuard VPN service. I have started with adding the repository and then installing the module which is running fine and ...
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2 votes
1 answer
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I still get "Dummy output" for audio after installing alsa-base and pulseaudio

I tried using my audio recently and I noticed that I couldn't any more, I've tried a few of the options I've seen but they do not seem to work: Dummy Output in Audio; nothing is working (ALSA broken?)...
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Anbox-Modules-dkms Won't Install

I'm having trouble installing the modules sudo modprobe ashmem_linux and sudo modprobe binder_linux. Every time I try the code I get this message in my Terminal modprobe: ERROR: could not insert '...
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Why is a device file not created?

Upon insertion of a mass USB storage device like an external hard drive or a flash drive, dmesg -w notes its insertion but no corresponding file such as /dev/sda or /dev/sdb is created.
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5 votes
2 answers
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open-vm-tools modprobe ERROR: could not insert 'vmgfx'

After doing a dist-upgrade yesterday evening the open-vm-tools-desktop are no longer working correctly. Which means, I can't resize to fullscreen. Trying to do so ends in a black screen. Taking a look ...
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2 votes
2 answers
819 views

empty "lsmod | grep loop"

I am trying to mount an ISO image $ sudo mkdir /mnt/myiso $ sudo mount -o loop ubuntu-16.04-server-amd64.iso /mnt/uiso The error message says mount: /mnt/uiso: failed to setup loop device for /home/...
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2 votes
2 answers
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mount.cifs gives me "mount error: cifs filesystem not supported by the system"

i try to mount a OneDrive Folder to my Linuxserver. However, as i try mout.cifs with XXX beeing the correct values... root@XXX:~# mount.cifs //onedrive.live.com/about/en-us/signin/ /usr/plex/share -o ...
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4 votes
2 answers
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What is "options iwlwifi 11n_disable=1" in WiFi setting?

One of the common solutions for improving WiFi signal is to use this command options iwlwifi 11n_disable=1 in /etc/modprobe.d/iwlwifi.conf And the number can be 0, 1, 2, 8. I was unable to find ...
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5 votes
1 answer
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modprobe nvidia throws error: could not insert 'off'

I am trying to configure bumblebee to switch my nvidia discrete card. As well bumblebee crashes when tries to modprobe nvidia. When i try to do it manually, i face the same error: $ modprobe nvidia ...
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