Some of these laptops had problems with acpi and local apic support.
Try the following cheatcodes
linux26 nolapic #this one should work
linux26 noapic
as a last resort
linux26 noacpi
If your onboard nic doesn't work,add the noscsi option.
Good Luck
I installed knoppix on my desktop no problems, works beautiful.
I took my same cd and attempted to install on my laptop but after the computer posts and I press a key to boot from the cd-rom it just hangs.
Other linux distro's boot up (fedora install cd) and also winxp cd that came with laptop also boots from the cd-rom drive. Does anyone know
of any issues with HP laptops?
Some of these laptops had problems with acpi and local apic support.
Try the following cheatcodes
linux26 nolapic #this one should work
linux26 noapic
as a last resort
linux26 noacpi
If your onboard nic doesn't work,add the noscsi option.
Good Luck
I had to type:
fb1024x768
to get mine to 'not hang'.
my ze4240 needs cheat codes since about 3.3 or 3.4, didn't before that. I use knoppix noscsi acpi=off
I am running the exact same model. Here's the boot options I use:
boot: knoppix26 fb1024x768
That should get you into graphical mode just fine. I'm starting a thread for this and some other issues i have solved on my own.

Intel SRG17 Core i7-9700T Desktop Processor CPU
$74.99
Corsair 760T, ASUS X99a-ii, i7-6800k, 16GB RAM, 1080GPU, 256GB SSD #21
$300.00
CPU-RAM-MOBO COMBO- 32gb DDR4 3600MHz, i5 CPU, Asus Prime Motherboard
$370.00
HP ProDesk 405 G8 Desktop AMD Ryzen 5 PRO 5650GE 16GB RAM 512GB SSD W11P
$319.99
Intel Core i7-3770K 3.5 GHz Processor
$39.00
Intel Core i7-9700 Octa-Core 3 GHz Desktop Processor LGA 1151
$79.99
Intel Core i5-14600KF Unlocked Desktop Processor
$259.99
Intel i7-8700 Coffee Lake 3.2GHz 6-Core Max Turbo 4.6GHz Processor
$69.99
Intel Core i5-4590T 2 GHz 5 GT/s LGA 1150 Desktop CPU Processor SR1S6
$14.99
PS5 Over Heating Problem Solver 1.5 Grams Liquid metal thermal paste CPU, GPU
$15.99