Hello Fedora Community,
I’m experiencing a critical issue with my Asus Vivobook Pro N552VW laptop running Fedora 42 KDE. My system only boots when I include the nolapic parameter in grub. Without nolapic, after the grub menu, the screen remains black and I cannot even access tty.
While nolapic allows me to boot, it causes severe lag and very slow performance across the entire system. I understand that nolapic forces the kernel to use the older PIC mode for interrupt handling, which significantly degrades performance.
Laptop Model:Asus Vivobook Pro N552VW
OS: Fedora 42 KDE
Kernel Version: 6.15.3-200.fc42.x86_64
BIOS/UEFI Version: Version 304 (latest available, confirmed no downgrade possible, very limited options in BIOS setup with no APIC settings)
GRUB Parameters Tested (without nolapic):
noapic (also failed to boot)
acpi=strict (failed to boot)
acpi_osi="Windows 2009" (failed to boot)
acpi_osi="Windows 2015" (failed to boot)
acpi_osi="!" (failed to boot)
pci=noacpi (failed to boot)
irqpoll (failed to boot)
acpi=off
and …
I have tested various Linux distributions (both older and newer versions) and none of them would boot even into the live environment without nolapic. After installation, they also refused to boot without this parameter.
Kernel Log (dmesg | grep -i apic) while booting with nolapic:
The repeated message ACPI: Unable to map lapic to logical cpu number seems to be the core issue. Please help me