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I have a dual boot setup with Windows 11 and Kubuntu 23.10. My laptop is a Lenovo IdeaPad 5 Pro 16ACH6 (model with GeForce RTX 3050).

I tried to remove all NVIDIA drivers because my battery drains much faster on Kubuntu than on Windows, and I understood that the issue might be related to the graphics card.

I simply used the remove command (and then autoremove afterward) with the NVIDIA wildcard indicated here: How can I uninstall a nvidia driver completely ?

However, after rebooting, I encounter ACPI errors, and the OS refuses to start, even if I add acpi=off and noapic to the grub options.

I tried booting into recovery mode and then booting normally from recovery. It works, but when I reach my desktop, none of my devices work (Wi-Fi, trackpad, Bluetooth, etc.). So, I'm unable to connect to the internet to perform an apt upgrade.

When I run ifconfig, I only see "lo" displayed.

I'm not sure what to do anymore. I don't have an Ethernet port on my PC, and even with a Type-C adapter, I don't have the eth0 interface available.

Any ideas? I feel like it also removed all the drivers for my devices...

Mosky
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  • Look in /var/log/dpkg.log, make a note of all packages that you uninstalled today, then reinstall them. According to your link, you might have removed your desktop environment, so you want to do sudo apt install kubuntu-desktop – Daniel T Feb 12 '24 at 22:14
  • Hmm I checked and I haven't removed kubuntu-desktop, since it is not in the list of removed packages and it says that it is already the newest version. Also I tried to reinstall all removed packages but it doesn't work since I don't have internet connection. – Mosky Feb 12 '24 at 22:46
  • You can download the .debs onto a USB using another computer or the LiveCD, then install them by passing the all at once to dpkg -i – Daniel T Feb 12 '24 at 22:55
  • Some of the .debs are not found when I try to download them. However, nvidia drivers are fine and I'm able to install them in Kubuntu. But I still can't use my WiFi or any of my devices on Kubuntu.. – Mosky Feb 13 '24 at 22:59

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Have you tried booting into terminal only?
In grub options there is a line starting with linux, add a number 3 to the end of the line to boot into level 3 (terminal only, no graphics)(keep acpi=off and noapic) and let the device boot.
Better instructions: How to boot into command line?
You should end up in a login shell with your default network settings applied and you can also change the settings, after logging in, to connect to the internet.
Configure WiFi Connections

Soroush
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  • I can boot into terminal only and login, but same problem when I type nmcli d I don't see my wifi interface, and there's no result to nmcli d wifi list – Mosky Feb 13 '24 at 18:02