2y ago

Why does the new version of Kubuntu take longer to start the wifi connection?

Kubuntu 23.10 connects to wifi, but only after all other startup programs have run.

I'm just curious as to why that is. And what controls this startup behavior.

I've had to change some startup scripts for rclone, to wait until a network connection is present before starting. Other than that it's not a problem.

16 comments

systemd-analyze plot > boottimes.svg
Open the SVG and have a look at what's happening during boot.
journalctl -b will give you some more info too. If you're using grub to boot (probably in /boot/grub/grub.cfg), you can change the loglevel and add the udev option to get a bunch more info. Helped me with a random issue recently. Here's mine for an example:

### BEGIN /etc/grub.d/10_linux ### menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-a96b3354-70dd-45ed-8c6c-95171e9f1e82' { load_video set gfxpayload=keep insmod gzio insmod part_gpt insmod ext2 search --no-floppy --fs-uuid --set=root a96b3354-70dd-45ed-8c6c-95171e9f1e82 echo 'Loading Linux linux ...' linux /boot/vmlinuz-linux root=UUID=a96b3354-70dd-45ed-8c6c-95171e9f1e82 rw loglevel=3 udev.log-priority=debug echo 'Loading initial ramdisk ...' initrd /boot/amd-ucode.img /boot/initramfs-linux.img }
- FYI: /etc/grub.d/10_linux should not be edited directly for permanent changes since those changes get replaced when grub is updated.
  Use /etc/default/grub for permanent changes.
  
  True, but for this purpose it's totally fine.
  There's also a big disclaimer at the top of the file:
  cat grub.cfg #
  DO NOT EDIT THIS FILE
  It is automatically generated by grub-mkconfig using templates
  from /etc/grub.d and settings from /etc/default/grub
  Wording could probably be less DOOM SHALL BEFALL YE, as long as you aren't messing around and just adding logging it's not an issue.
  More info on grub here: https://wiki.archlinux.org/title/GRUB
Maybe you didn't add the connection as a system connection this time.
- I don't know what that means. Mind explaining?
  
  In the Networkmanager you can set that a connection is either available to all users or just yourself. If you set it to "all users" its configuration will be saved somewhere in /etc/Networkmanager (I'm too lazy to look up the real path) and will therefore be available for Networkmanager on boot. If you just make it available for yourself Networkmanager will only attempt to connect after you log in.
  I think the default is to make it only available to yourself, because then you don't have to enter your sudo password when you set it up or want to change something. The downside is of course what you describe in your post.
I think the connection is made by some program after login and not automatically by the system as in other operating systems
If for example i install icewm on kubuntu I don’t have Wi-Fi connection at all
- I remember having to go out of my way to get an Ubuntu machine to connect to WiFi before login for this reason. It felt strange to have to do that at first, but it's also reassuring that the machine isn't by default connecting to a wireless network without user input first unless I give it explicit instructions to do so.
  
  I actually like that. Have to put in the password on fist boot before network will connect to wifi.
- Network Manager?
- Was playing with KDE on live boot today and noticed WiFi took a long while after entering WiFi creds. Didn't bother digging into why, though.
You could probably fix this with some troubleshooting. That's all I ever did on Ubuntu and it's derivatives.

16 comments

DO NOT EDIT THIS FILE

It is automatically generated by grub-mkconfig using templates

from /etc/grub.d and settings from /etc/default/grub