It seems that 1/25 times i go down with apm, my system locks up when it comes back up. Anyone else ever seen this behavior? Is it a problem with my setup, or just a a problem iwth the apm standard?
I do need apm, this machine being a laptop of course.
How old is the laptop? If it isnt that old your should really use ACPI what distro are you using?
is it necessary to enable acpi/apm in order to use powernow ?
IIRC Powernow is AMD's Speedstep you should not use both APM and ACPI use one or the other. No you do not need ACPI just the options below.
I also use speedfeq to control my proccessor's frequency you can set it to dynamic so you have the juice when needed :D
CPU Frequency scaling --->
[*] CPU Frequency scaling
[*] CPU frequency table helpers (NEW)
[*] AMD Mobile Athlon/Duron PowerNow!
Question: Is there a conclusive list that can tell me if my laptop has ACPI. I have wondered for a while, but dell is no help in that respect (At least their tech specs page).
I seem to remember seeing it on a forum at one point, but... not quite sure.
I suppose i could take the time and just recompile to figure it out. But i prefer to research first.
I am running Fedora on my Dell Inspiron 2500 and using acpi=on in my kernel arguement works fine. What I did was copied the lines in grub.conf so that I had two versions of the Fedora boot part. Then I put the acpi=on on one, but not the other so that if it didn't work, I could choose the other. Obviously I could also just edit what's sent to the kernel but it is easier the other way.