[Bug 272247] Re: System freezes during boot, unless I hold a key down

[Stefan Bader]

@67GTA, the compile log seems not to show anything touching the
Processor declarations. Its a bit weird. I wonder whether you see
something noticeably different in powertop (on the C-state usage)
between using that modified DSDT and unmodified with nohpet (but thats
probably more out of curiosity).

@DEFHol, wribeiro, the problem with that sort of thing is that it is
hard to get hold of and likely depends on having certain hardware. The
"idle=poll" is not really desirable because it prevents the cpu from any
idle method which is not doing good on battery life. If neither "nohpet"
nor "acpi_skip_timer_override" work for you, you might give "idle=halt"
a try, but the other two options would probably be better.

In general a fix seems to require a dmesg (with "debug apic=debug") and
"sudo lspci -vvvnnxxxx" and a good documentation on the chipset. It
seems it is not the first time HP get the IRQ0 override wrong.

-- 
System freezes during boot, unless I hold a key down
https://bugs.launchpad.net/bugs/272247
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