Comment 173 for bug 272247

SRElysian,
maybe this answer your question:

Kernel Parameters->
http://www.mjmwired.net/kernel/Documentation/kernel-parameters.txt

2008/11/27 SRElysian <email address hidden>
>
> I am going to ask a dumb question here, I've done a bit of research but
> can't seem to find a good explanation as to what the consequences are so
> I figured I'd ask here just to get the record straight for myself as
> well as anyone else with this issue trying to get the same information.
> So far I've seen a few different options that bypass the problem;
>
> acpi=off (disables power management completely and I personally wouldn't
> suggest)
>
> acpi=noirq
> nolapic
>
> Which is best to use? All documentation I've found seems to state these
> 2 things are not the same. At current, I am using the apci=noirq, but I
> am not sure what that actually does, and if perhaps nolapic would be
> better. Just figured I'd get the best solution until this problem can be
> properly fixed as opposed to "triaged".
>
> --
> System freezes during boot, unless I hold a key down
> https://bugs.launchpad.net/bugs/272247
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in The Linux Kernel: Confirmed
> Status in Ubuntu Release Notes: New
> Status in "linux" source package in Ubuntu: Triaged
> Status in "usplash" source package in Ubuntu: Invalid
> Status in "linux" source package in Mandriva: Invalid
>
> Bug description:
> Binary package hint: usplash
>
> Once the Ubuntu splash screen loads with the progress bar that moves back and forth, it freezes. Holding down any key unfreezes the system, and it continues
> loading normally, until I release the key, at which point it freezes again. Holding a key down again unfreezes the system again.
>
> Pressing Alt+F1 to show the output also freezes, so I know it isn't just the splash screen freezing, but the entire system.
>
> Once X loads, it works perfectly fine though, and I don't have to keep holding a key down.
>
> Update : This bug happens with 2.6.26 and 2.6.27 kernels with a computer that has Nvidia MCP67 motherboard. A known workaround that sometime works is to add nolapic to GRUB boot kernel options.
>
> ProblemType: Bug
> Architecture: amd64
> DistroRelease: Ubuntu 8.10
> NonfreeKernelModules: wl nvidia
> Package: usplash 0.5.23
> ProcEnviron:
> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> SourcePackage: usplash
> Uname: Linux 2.6.27-3-generic x86_64
>
> ----------
> Possible systems affected include:
> Nvidia MCP67
> HP Pavilion DV6620es
> HP Pavillion DV9700z
> Compaq Presario F700
> Sony Vaio PCG-GRT-815E - from the Mandriva errata
> HP DV6745us - from a duplicate
> HP DV6545eg Notebook - from duplicate
>
>