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Date:      Thu, 17 Sep 2015 17:19:58 +0200
From:      "O. Hartmann" <ohartman@zedat.fu-berlin.de>
To:        Kris Moore <kris@pcbsd.org>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Intel Haswell support - Any updates?
Message-ID:  <20150917171958.046e4b6b.ohartman@zedat.fu-berlin.de>
In-Reply-To: <55FAD5EF.5030001@pcbsd.org>
References:  <55FA7324.5010603@icloud.com> <CAASDrV=D6viCDJx9yT5CiNf1ukiz_Rp1k5wqpk92xSyiNQTEqg@mail.gmail.com> <CAPS9%2BSuYq6JqzX=aHNgD=y5SUnBQ4x_Amk-6B0bvKc6kRQ5YVA@mail.gmail.com> <CAASDrVnxZ8MUmgCO-cFRVatUMQS1LHU-4XASSJckzp_FJbvd2w@mail.gmail.com> <09A515F2-44BA-4DF0-9792-D4C56EEB9D7C@FreeBSD.org> <CAASDrVnuVfOsJvNuOsAQaHYRQqFenH%2B3=wNDBO5GR5j2KgxsxQ@mail.gmail.com> <114F22EF-61E3-4D75-84FB-9D6E3FBCB8F3@FreeBSD.org> <20150917131333.GN1247@egr.msu.edu> <CAASDrVnNuh%2BjT-%2BZFTriPELfOB78accBqGmrVUE-MDgDPZoicA@mail.gmail.com> <20150917134809.GA3025@c720-r276659> <55FAD5EF.5030001@pcbsd.org>

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Am Thu, 17 Sep 2015 11:02:07 -0400
Kris Moore <kris@pcbsd.org> schrieb:

> On 09/17/2015 09:48, Matthias Apitz wrote:
> > El d=C3=ADa Thursday, September 17, 2015 a las 10:41:43PM +0900, Lundbe=
rg, Johannes
> > escribi=C3=B3:
> >
> >> Same here. I would personally definitely buy new hardware from Intel if
> >> FreeBSD worked on it (not vesa...)
> >> ...
> > What dow you have against vesa? I run CURRENT on some Acer C720
> > Chromebooks with Haswell chipset in Vesa mode. And you will not note it.
> > I have never ever had such a fast desktop (KDE4) before. I can live fine
> > with Vesa until Haswell suport is there.
> >
> > 	matthias
>=20
> BTW, have you tried the xf86-video-scfb driver? It works much better
> than vesa here. The only catch is you have to be booted UEFI with CSM
> disabled. Using it on my X1 Carbon, gets 3k resolution properly and
> everything. Thanks to Glen Barber for bringing that to my attention.
>=20

Running that specific driver on several Lenovo HD4600 driven models gives m=
e headaches
and more. This software-framebuffer works - yes, on whatever resolution you=
 might wish,
but it consumes CPU time. That said, I recall that the display was jumpy, s=
low and
unresponsive when used under heavy load - not even 3k resolution, but with =
a moderate
lowend of 1980x1080.

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