Kernel problem I guess : No irq handler

[Wollie]

Before changing the /etc/default/grub file permanently I would test it from the grub menu as proposed by Bogdan:

No irq handler for vector / Failed to start Load/Save Screen Backlight Brightness of backlight:acpi_video0

Please try this: When you boot, while in the GRUB menu and you selected to boot the installer, pres e and add, to the kernel parameters line, this pci=nomsi,noaer You can place it right after quiet . Then press F10 to continue booting. You might have to do the same once the system is installed and you boot from it. Look on how to permanently add boot flags to boot. If this helps to not show that message, then you can make it permanent by adding it to /etc/default/grub and then update gr…