On Tuesday 25 November 2008 22:41, garry.ogle@xxxxxxxxxxxxx wrote: > Dave Phillips wrote: > > Greetings, > > > > As I get further into the configuration of my new machine I've hit > > some minor snags. Perhaps someone here knows how to resolve these issues: > > 1) The machine does not cleanly shut down with the rt kernel. The > > system appears to go down, but the power light remains on and does not > turn off manually (this happens with the battery in or out). Any fix for > that ? I don't like having to switch off the power at the strip, I doubt > that it's good for the box. > > i can't help with your other questions but this could a consequence of > having the "acpi=off" and/or "noapic" set in your kernel bootloader > config. > > i don't remember which one disables the auto-power-off, but this is > definitely the observed behaviour on my box. i have to physically switch > it off after it shuts down. > > i set these boot options because they help with the way IRQs are > allocated, which in turn allows better real-time performance. > > all the best, G. I have to set acpi=off to get anything to boot up, otherwise the machine just locks up when getting to starting X. Some of the distros on this machine will not shutdown completely, and I also have to set acpi=force, which results in the machine shutting down completely, and quite abruptly. I havn't a clue about ACPI, and the man pages don't say much. This is on a PC, not a laptop as you have, but it may be worth appending the kernel line with acpi=force, and see how it goes. Just a suggestion. Nigel. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user