Re: Intel Haswell support - Any updates?

On 09/17/2015 11:19, O. Hartmann wrote:
> Am Thu, 17 Sep 2015 11:02:07 -0400
> Kris Moore <kris_at_pcbsd.org> schrieb:
>
>> On 09/17/2015 09:48, Matthias Apitz wrote:
>>> El día Thursday, September 17, 2015 a las 10:41:43PM +0900, Lundberg, Johannes
>>> escribió:
>>>
>>>> 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
>> 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.
>>
> Running that specific driver on several Lenovo HD4600 driven models gives me 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, slow and
> unresponsive when used under heavy load - not even 3k resolution, but with a moderate
> lowend of 1980x1080.

Interesting, that's been the opposite of my experience here. Vesa was
much slower / using more CPU time and didn't give me the native
resolution. Switching to scfb made the laptop "usable" for me, at least
until we get a proper Intel driver that does Broadwell.

-- 
Kris Moore
PC-BSD Software / iXsystems
Enterprise Storage & Servers Driven By Open Source