Arch Linux

Description:
When I reboot my Asus N752VX laptop, it often freezes at an early boot stage.
When I'm using GRUB it freezes displaying "Loading initial ramdisk ...".
Adding " initcall_debug earlycon=efifb" to the kernel command, the last kernel messages displayed when it freezes are:
"spurious 8259A interrupt: IRQ7.
calling con_init+0x0/0x25e @ 0
Console: colour dummy device 80x25
printk: console [tty0] enabled
printk: bootconsole [efifb0] disabled"

When the freeze happens the cpu fan starts running at maximum speed and I can only force a shutdown pressing the laptop power button.

This issue is present in all linux, linux-zen and linux-lts since some months.
The only two ways to workaround it are:
1) by avoiding to load the intel-ucode (but it is problematic from the security point of view being the i7-6700hq vulnerable to a lot of Spectre, Meltdown and similar attacks)
2) by adding acpi=off to the kernel command, but in such a case the nvidia driver is not loaded and I have to force a shutdown to complete each reboot. So I'm not sure this second option is able to recreate the freeze because it happens only on reboot and not after a shutdown.


Additional info:
* package version(s) Linux and linux-zen 5.11.2 and previous versions. linux-lts 5.10.20 and previous versions.
* config and/or log files etc.
* This is the link to the forum where are explained all the steps I've made (thanks to the help of other forum users to try to find a solution without luck. https://bbs.archlinux.org/viewtopic.php?id=260971&p=3

Steps to reproduce:
Reboot the PC until the problem occurs. Typically less than 4 rebooting are sufficient.