On Wed, 23 Dec 2009, Daniel Feenberg wrote:

>
>
> On Wed, 23 Dec 2009, David Allan wrote:
>
>> On Wed, 23 Dec 2009, Daniel Feenberg wrote:
>>
>>>
>>>
>>> On Wed, 23 Dec 2009, David Allan wrote:
>>>
>>>> Having run Linux on laptops for a decade there's only one strategy that
>>>> has worked reliably for me, and it results in very, very stable operation:
>>>>
>>>> Go through every hardware component and make sure that it has support in
>>>> the kernel.org kernel.  In particular, you are interested in wireless
>>>> network support and video support.  You will no doubt be able to make
>>>
>>> HOw do you find out what the components are? Only the processor and
>>> (sometimes) the video are mentioned in sales literature I see. Is there a
>>> website with information about wifi, ethernet and ACPI?
>>
>> The manufacturer's website will usually have the full specs, and you have to
>> make sure that there aren't options for different cards.  I won't buy a
>
> "will usually"? Can you give an example of a URL that points to such a
> paragon of information? When I go to a vendors website I get something
> like this: http://tinyurl.com/ykjwwgc [hp.com - click on "specs"] which
> gives the processor and video types, but characterizes wi-fi only as G or
> N and gives no information about ethernet or ACPI. I have never seen any
> more than that from any vendor, cheap or expensive, but if there were a
> way to get more information, I'd like to know it.

First, I'm not saying that the research you have to do is either fun or 
easy, just that I'd rather put in the research pain at purchase time than 
at some later time that I don't control.

Having said all that, to your point about the HP, HP's lack of specs is 
seriously annoying, but that machine AFAIK is a home-user model, and I 
haven't had a lot of good luck with that price-point from any vendor under 
any OS.  They can't really expect business users to buy a machine without 
the card model.  How could you manage a fleet of those things under any 
OS?

However, if you were really dying to get that particular machine, they do 
say that you have an option for an "Intel wireless N mini card", which is 
very, very likely to work on any modern distro, so I'd feel quite 
comfortable buying that model as long as I was planning on running a 
recent Fedora or Ubuntu.  Centos runs a bit behind the edge by design, so 
that's a trickier research project.  You might want to look for a slightly 
older laptop in that case, or a business model with long term support 
where you can get an older card.

HP does give the exact model of cards on their business class machines:

http://h10010.www1.hp.com/wwpc/us/en/sm/WF06a/321957-321957-64295-3929941-3955552-4021356.html

Which offers the Intel 5100.  You can confirm that it's an in-kernel 
driver at:

http://linuxwireless.org/en/users/Drivers

Looking for an A/B/G/N Intel card, I clicked on iwlagn, which took me to:

http://intellinuxwireless.org/

which confirms that, "After 2.6.26 the intree driver iwlagn also supports 
the new 5100BG, 5100ABG, 5100AGN, 5300AGN, 5350AGN, 5150AGN, 1000BGN, and 
6000AGN series"

so you should be good to go out of the box with pretty much any modern 
distro.

Fedora has some pretty strict standards about what they will ship, which 
correspond closely to what I'm suggesting, so I find that anything 
supported under Fedora is likely to work reliably under any modern distro.

There's more info at:

http://fedoraproject.org/wiki/FAQ#Is_my_hardware_compatible_with_Fedora.3F

Also, Fedora has an opt-in, anonymous hardware data reporting service 
called smolt, and you can see the results here of what people are actually 
running on:

http://smolt.fedoraproject.org/

Smolt also confirms that a lot of people are running the 5100 out of the 
box under Fedora.

For more manufacturers who provide specs, see also:
http://www.dell.com/us/en/business/notebooks/laptop_latitude_e5500/pd.aspx?refid=laptop_latitude_e5500&s=bsd&cs=04
http://shop.lenovo.com/SEUILibrary/controller/e/web/LenovoPortal/en_US/catalog.workflow:category.details?current-catalog-id=12F0696583E04D86B9B79B0FEC01C087&current-category-id=19C791A03AF24034A0011B825513BCED&tabname=TechSpecs#tabstart

Like I said, it's not fun, interesting or easy, but it's a methodology 
that gets me a stable development machine year after year.  Having fought 
with out-of-tree drivers on one card and witnessed the pain others around 
me have had with binary drivers, I'm pretty happy with it.

Dave

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