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Date:      Mon, 2 Jul 2012 12:54:47 -0600 (MDT)
From:      Warren Block <wblock@wonkity.com>
To:        Erich Dollansky <erichfreebsdlist@ovitrap.com>
Cc:        freebsd-x11@freebsd.org
Subject:   Re: KMS Question
Message-ID:  <alpine.BSF.2.00.1207021243000.5386@wonkity.com>
In-Reply-To: <201207021126.38116.erichfreebsdlist@ovitrap.com>
References:  <alpine.BSF.2.00.1207020503160.63787@pukruppa.de> <201207021054.22814.erichfreebsdlist@ovitrap.com> <alpine.BSF.2.00.1207020610120.59952@pukruppa.de> <201207021126.38116.erichfreebsdlist@ovitrap.com>

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On Mon, 2 Jul 2012, Erich Dollansky wrote:

> Hi,
>
> On Monday, July 02, 2012 11:13:56 AM Peter Ulrich Kruppa wrote:
>> On Mon, 2 Jul 2012, Erich Dollansky wrote:
>>
>>> On Monday, July 02, 2012 10:16:43 AM Peter Ulrich Kruppa wrote:
>>>>
>>>> please correct me, if I misunderstood something about KMS .
>>>>
>>>> I built xorg-7.7 on FreeBSD 9.0-STABLE #0: Mon Jun 11 23:48:45
>>>> CEST 2 amd64 .
>>>>
>>>> When I do a plain
>>>>  	# startx
>>>> (no xorg.conf set) I receive
>>>>
>>> I do this:
>>>
>>> sudo kldload i915kms
>>> sudo kldload acpi_call
>>> sudo chmod 666 /dev/acpi
>>> startx
>> Actually this is my question: I cannot kldload these two modules
>> because I don't have them. I believed I wouldn't need them since
>> I don't have any Intel-chipset. Do I need them anyway?
>
> ok, then we need more information. What kind of machine do you have? CPU and GPU?
>
> To my knowledge, KMS needs an Intel i3, i5 or i7 to work. You cannot use KMS with all other CPUs.

That doesn't sound right, although I have not yet tested it.  It should 
only depend on the graphics chipset, not the processor, and some earlier 
GPUs should be supported.  The wiki (http://wiki.freebsd.org/Intel_GPU) 
says
   "Initial goal is to have gen4-gen6 (and gen7 AKA IvyBridge, when
   available) hardware support. Gen2 and gen3 will be best efforts. See
   http://en.wikipedia.org/wiki/Intel_GMA for the useful table with the
   information about the hardware, generations and marketing nicks."

Generation four is GMA X3000, five and six are... not clear to me. 
Maybe X3500 and X4500.

> You also do not need it if you have another GPU you want to use it in the system.

Yes, or put another way, the Intel driver is the only one which has 
working KMS at present.



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