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I updated Ubuntu 22.04.4 to 6.5.0-21 kernel update, since then I am unable to boot up into Ubuntu. While boot up, there is the error iwlwifi WRT: Invalid buffer destination I tried to boot into recovery mode, but without success (loop in "Starting Network Time Synchronization").

I got a black screen with the following messages.

[   0.004260] __common_interrupt: 1.55 No irq handler for vector
[   0.004260] __common_interrupt: 2.55 No irq handler for vector
[   0.004260] __common_interrupt: 3.55 No irq handler for vector
[   0.004260] __common_interrupt: 4.55 No irq handler for vector
[   0.004260] __common_interrupt: 5.55 No irq handler for vector
[   0.004260] __common_interrupt: 6.55 No irq handler for vector
[   0.004260] __common_interrupt: 7.55 No irq handler for vector
[   0.004260] __common_interrupt: 8.55 No irq handler for vector
[   0.004260] __common_interrupt: 9.55 No irq handler for vector
[   0.004260] __common_interrupt: 10.55 No irq handler for vector
[   5.301695] 
[  12.505302] iwlwifi 0000:06:00.0: WRT: Invalid buffer destination
_

What can I do now?

karel
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LeMoussel
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  • iwlwifi is not what's breaking boot. Are you on Nvidia? – Daniel T Mar 01 '24 at 08:15
  • Yes I have Nvidia GPU – LeMoussel Mar 01 '24 at 08:16
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    Go to the Ctrl+Alt+F1 TTY and log in. Then install the correct Nvidia driver version for the new kernel version with https://askubuntu.com/q/1258904/1004020 . If it still doesn't work, downgrade the kernel from 6.5 HWE to 5.15 GA – Daniel T Mar 01 '24 at 08:18
  • Ctrl+Alt+F1 doesn't send me to a tty. Ctrl+Alt+F3 does. – LeMoussel Mar 01 '24 at 08:27
  • Ctrl+Alt+F1 is meant to be used when you see the iwlwifi error, not at GRUB. If it's not responding, you can try Alt+PrintScreen then R then Ctrl+Alt+F1 – Daniel T Mar 01 '24 at 08:29
  • How can I downgrade the kernel from 6.5 HWE to 5.15 GA? – LeMoussel Mar 01 '24 at 08:36
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    sudo apt install linux-generic ; sudo apt remove linux-generic-hwe-22.04 ; sudo apt autoremove – Daniel T Mar 01 '24 at 08:36
  • https://wiki.ubuntu.com/Kernel/LTSEnablementStack and searching "To downgrade from HWE/OEM to GA kernel" tells you how... multiple kernel stacks can co-exist on an install too (ie. removing HWE is optional) except for when some closed source kernel modules prevent it (eg. some nvidia won't allow multiple stacks co-existing) – guiverc Mar 01 '24 at 08:50
  • If I switch from HWE/OEM kernel to GA kernel, will I lose all the configuration (IP address, VNC server, ...) – LeMoussel Mar 01 '24 at 09:07
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    No, switching the kernel will not affect userspace. Userspace includes that "IP address, VNC server". The kernel includes the drivers but no configuration – Daniel T Mar 01 '24 at 09:30
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    Does this answer your question? How to stop using the HWE kernel and go back to the GA kernel? – Daniel T Mar 03 '24 at 00:30
  • No. I remove all NVIDIA Drivers (Se: https://askubuntu.com/questions/206283/how-can-i-uninstall-a-nvidia-driver-completely/206289#206289), Reboot and install the correct Nvidia driver version for the new kernel version. – LeMoussel Mar 03 '24 at 08:27
  • In French: https://zonetuto.fr/linux/ubuntu-comment-desinstaller-completement-un-pilote-nvidia/ – LeMoussel Mar 04 '24 at 08:01

1 Answers1

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Just solved a similar problem. Some how in the power settings my Automatic Suspend settings was changed to plugged- in and should be When on Battery. Apparently the program I am running is not able to let my os know it running. Check your Power settings!

propolis
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