this post was submitted on 16 Mar 2026
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Latest Ubuntu update broke everything (feddit.uk)
submitted 1 week ago by Iconoclast@feddit.uk to c/linux@lemmy.world
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Bluetooth not working at all, internet not working at all, and even the setting for HDMI audio output is gone. The settings page is just empty.

I managed to load an older kernel(?) and got Bluetooth and internet working again, but still no audio. I'm as much of a novice at running Linux as you can get. I've been trying to troubleshoot this with the help of an LLM, but I have no idea what I'm doing here.

Any help, please?

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[โ€“] rem26_art@fedia.io 3 points 1 week ago (1 children)

If you want to make GRUB remember the last boot entry you picked, you can edit /etc/default/grub and set the following
(make note of the original values or comment out the existing entry by adding # to the start of the line first)

GRUB_SAVEDEFAULT=true
GRUB_DEFAULT=saved

then run sudo update-grub to apply the changes. When you next boot and select a kernel, GRUB will remember that choice and just use it.

Maybe you could try reinstalling the newest kernel? sudo tac /var/log/apt/history.log | less should give you a list of the last updates that were installed. Idk what Ubuntu calls their kernels, but they'd be packages named like "linux-image-generic" or something like that. If that doesn't work, then maybe they messed something up on that kernel update and you've gotta wait for a fix.

Whenever it does get fixed, you may want to undo the changes to /etc/default/grub

[โ€“] Iconoclast@feddit.uk 3 points 1 week ago

I did GRUB_DEFAULT="1>2" instead so it now loads the previous version instead - I think. I did what ChatGPT told me to, lol