Comment # 4 on bug 1217344 from Tommaso Fonda

(In reply to Takashi Iwai from comment #3)
> Hm, then keep nomodeset and also drop quiet and splash=silent options.  This
> will show more lines at boot and we may see at which line it hangs up.
> 
> If this doesn't show any useful lines, we might need to enable the early
> printk.
> 
> ... or it might be something to do with the CPU microcode loading.  In that
> case, you can try to pass "dis_ucode_ldr" boot option to disable CPU
> microcode.
nomodeset without quiet and splash=silent changes nothing.
Adding dis_ucode_ldr changes nothing.
I've tried enabling earlyprintk (not sure I did it the right way) by removing
quiet and splash=silent and adding earlyprintk=vga,keep and
earlyprintk=serial,ttyS0,keep and this too changed nothing. During this
earlyprintk test, I forgot to add nomodeset, though.