I ran into a severe issue after a recent system update where my laptop completely lost networking and exhibits display/boot issues on the newest kernel. I'm reporting this here to help track the regression.
Operating System: Zorin OS (Noble base) Hardware: HP Laptop
Symptoms after latest kernel update:
Networking: System completely fails to detect or create interfaces for network hardware. Running ip a only displays the virtual loopback (lo). Neither Wi-Fi nor hardlined Ethernet function.
Display: Screen brightness is significantly degraded/darker upon boot.
Performance: Boot times are severely elongated compared to previous states.
Temporary Workaround: > Booting into the previous working kernel via the GRUB advanced options menu completely restores all functionality (Wi-Fi, Ethernet, brightness, and standard boot times return to normal).
Hello, this is a real problem and you are not alone.
This will stay like this if Zorin OS stay with Ubuntu LTS, that's why lot of us think the Zorin team should think about a Debian base. It doesn't mean it will fix all problems but Debian is more solid in my opinion.
So, the -23 Kernel works, yes? Could You log in with the -29 Kernel, open the Terminal and type sudo lshw -C network and make a Picture of the Output and then post it here when You booted back in the older Kernel? It could offer additional Infos.
Thanks for the welcome! Yes, the -23 kernel works perfectly with full networking.
I booted back into the broken -29 kernel and ran the command as requested. As you can see in the screenshot below, both the RTL8822CE Wi-Fi card and the RTL8111/8168 Ethernet controller are showing up as UNCLAIMED.
Let me know if you need any other terminal outputs or logs.
If you use the advanced options choice from the grub menu you can choose to boot the previous kernel version that doesn’t have the problem.
You can then edit your grub file to make it your default. I am not able to access my Zorin computer right now but by memory the commands are saveddefault =true and default=saved. I can confirm later or someone else can.
Ust checked:
The command to edit is sudo nano /etc/default/grub
and the first two lines need to be:
GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true
Then ctl-o to overwrite and ctl-x to exit the editor
Hmm, the Devices are detected but doesn't work with the Kernel at all ... I looked in the Changelog from the Kernel Update when I got it but can't remeber to something specifc what could explain that.
Then, I guess, You have to stay - at least for now - wit the -23 Kernel. As an Alternative, You could try the Liquorix Kernel if You want to see if it works. But it's not a Must. It is up to You.
Update: > While I was in the -23 kernel, an update happened and required a restart. I allowed a normal restart and the system loaded up normally this time.
Using the uname -r command shows that I am now back running the -29 kernel without any problems. The Wi-Fi is working great and everything is back to normal!
