Arch Linux

Xwang

Member

From: EU

Registered: 2012-05-14

Posts: 410

10s slowdown at boot after ipu6 webcam activation in the BIOS

Hi to all,
I'm facing a strange behaviour with my laptop.
After I've enabled the webcam in the bios, each boot pause for ten seconds and systemd-analyze highlight that boot.mount and efi.mout take 10 seconds.
I'm using systemd-boot as boot loader, I have /boot as a separated partition  and EFI mounted in /efi by following the third point of https://wiki.archlinux.org/title/EFI_sy … _partition
Both /boot and /efi are in the /etc/fstab

Is there anything I can do to prevent this boot slowdown, which apparently does not happen if I disable the webcam in the BIOS ?

By comparing the module loaded after a boot with or without the camera enabled I see that when camera is not enabled in the bios the startup slowdon is not presnet and those modules are not loaded:

usb-ljca intel-ish-ipc ivsc-ace ivsc-csi mei-vsc 

and unexpectly this module is  instead loaded in this case but not when webcam is active:

snd-soc-rt715-sdca

Blacklisting the 5 modules solves the slowing of the boot, but the camera is not present anymore even if I manually modprobe the 5 modules.
Is there any specific command that I could execute to manually load the module and have the camera correctly initialized?
The slow boot with the webcam active in the BIOS seems a problem that appers to multiple dell laptop with ipu6 cameras.

Last edited by Xwang (2025-08-30 15:47:25)