laptop sources

badgers · l33t Joined: 04 Sep 2003 Posts: 680 Location: Madison, WI

Hello, I have been using desktop computers with the "love" sources for awhile now.
I went with "love" because it seemed that it was targeting the desktop user.

Is there a kernel source that is targeted to laptops?
It seems that suspend and power management seem to be big ticket items on laptops.

thank you for your time and have a good day
Mike Daugird
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2.6.17 Suspend2 kernel with no scsi support

Ravilj · Posted: Mon Apr 04, 2005 12:52 pm Post subject:

The kernel comes with ACPI support as standard. So any kernel you use will have support for it. Though the software suspend that the kernel supports isnt that great there is a patch for suspend2 I think it is called which is better to use. The only problem is that the patch only works on some of the kernels. I was unable to get it working on the old gentoo-dev-sources which are now the development sources if I am not mistaken (the vanilla sources with all the patches applied). So yeah have a look here: http://www.gentoo.org/doc/en/power-management-guide.xml

badgers · l33t Joined: 04 Sep 2003 Posts: 680 Location: Madison, WI

I was under the impression some of the unsupported kernels had already patched for swsusp2

I guess that was why I was asking as I don't know which sources have the patch and which don't
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2.6.17 Suspend2 kernel with no scsi support

M@rijn · Posted: Mon Apr 04, 2005 1:24 pm Post subject:

badgers · l33t Joined: 04 Sep 2003 Posts: 680 Location: Madison, WI

are you telling me that the R51 laptop I am looking at is going to be a problem due to the wifi driver?

that kind of sucks...
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2.6.17 Suspend2 kernel with no scsi support

M@rijn · Posted: Mon Apr 04, 2005 8:45 pm Post subject:

With nitrosources yes, to be honest with every kernel that supports swsusp2 wil IPW2200 (centrino) doesn't work :S
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badgers · l33t Joined: 04 Sep 2003 Posts: 680 Location: Madison, WI

i am not sure I follow the grammer of your post.
Are you saying that the 2200 version is working?
I noticed that the 2100 is listed as not working?
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2.6.17 Suspend2 kernel with no scsi support

stgreek · Posted: Mon Apr 04, 2005 9:20 pm Post subject:

Laptops aren't only swsusp2. Your Thinkpad will work with everything (including swsusp2 and Intel wifi), just use APM instead of ACPI (IBM supports both). If you use ACPI, make sure you check the IBM_ACPI tools in the kernel. There is no standard "laptop-mode" because it is not really needed, since cpufreq and the kernel can take care of the proc, ACPI/APM of the other devices and hdparm of the hard-disk spinning.
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badgers · l33t Joined: 04 Sep 2003 Posts: 680 Location: Madison, WI

is it best to make modules out of most of the kernel?
I have alway compiled in everything, sound, network, firewire, ect.

but that was on a desktop machine. Do laptops do better with more modules?
I never really had a good reason for building a monolithic kernel other then it worked so far....

thank you for your help and have a good day
mike
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2.6.17 Suspend2 kernel with no scsi support

ephilli2 · n00b Joined: 18 Sep 2004 Posts: 27

It looks like the latest love sources 2.6.12 has ipw2200 included. I think problems with ipw2200 and swsup2 are fixed by building in swsup2 instead of as a module. I haven't had a chance to use either of these features though.

EDIT: It looks like swsup2 isn't in 2.6.12 even though it was in previous.
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strerror · Retired Dev Joined: 16 Jan 2004 Posts: 24

Check out brix's overlay. http://dev.gentoo.org/~brix

ttuttle · Tux's lil' helper Joined: 03 Oct 2004 Posts: 131

A couple things:

re modules: I always build everything possible as modules, because anything you build as a module could save you a potential reboot. If you use Software Suspend, it's nice to be able to unload drivers that don't work right with it.

re ipw2200: You don't need ipw2200 built in to the kernel; it's in Portage and the ebuild works fine building it outside the kernel tree. (Did you know it has rfmon and you can use Kismet now? It's awesome!)

lavacano · Posted: Thu Jun 02, 2005 8:18 am Post subject:

if your laptop is a desktop replacement i'd use love cause of the rtp patches. Otherwise Nitro is also a swsup2 kernel on the bleeding edge. and JFS of coarse :-)

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baeksu · l33t Joined: 26 Sep 2004 Posts: 609 Location: Seoul, Korea

Let's not forget about morph-sources, people. It has swsusp2 and optional acpi-patches, plus a choice between the staircase and nicksched schedulers.

Plus, they're still patching a 2.6.11-kernel, instead of the 2.6.12-rc* ones in nitro and love sources. I'm mentioning this because nvidia-kernels newer than 6111 are needed for 2.6.12-kernels, and those happen to break with many GeForce cards (which are common in laptops).

Would be nice if someone threw together laptop-specific kernel patches, though. Not sure what would be good in it, but at least swsusp2, wifi-support and some scheduler to reduce swapping and io-bottlenecks, laptop harddisks being so slow.

Archangel1 · Veteran Joined: 21 Apr 2004 Posts: 1212 Location: Work

yamakawa · Guru Joined: 28 Jul 2003 Posts: 340

skunk is another good choice!