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Date:      Thu, 17 Sep 2015 23:42:01 +0200
From:      Nikola Pajkovsky <n.pajkovsky@gmail.com>
To:        Stefan Wendler <stefan.wendler@tngtech.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Intel Haswell support - Any updates?
Message-ID:  <87a8sk205y.fsf@gooddata.com>
In-Reply-To: <11271727.FrCOrXGY1l@hactar> (Stefan Wendler's message of "Thu, 17 Sep 2015 19:28:14 %2B0200")
References:  <55FA7324.5010603@icloud.com> <55FADB38.7000406@pcbsd.org> <87twqt2gs9.fsf@gooddata.com> <11271727.FrCOrXGY1l@hactar>

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Stefan Wendler <stefan.wendler@tngtech.com> writes:

> On Thursday 17 September 2015 17:43:02 Nikola Pajkovsky wrote:
>
>> Use memcontrol to set mtrr write-combine for your Vesa. Vesa is lightning
>> fast on T440p on 1920x1200.
>
> I use a T540 and didn't get this to work yet. Can you give me the commands 
> you've used? I guess we have the same chips anyway. So the hex-values should 
> be the same?

Do not run those commands in X, otherwise it hangs.

$ vidcontrol -i mode | grep 1920
383 (0x17f) 0x0000000f G 1920x1080x32 D  8x16  0xa0000 64k 64k 0xe0000000 8100k

$ memcontrol list | grep 0xe0000000
0xe0000000/0x20000000 BIOS uncacheable set-by-firmware active

$ memcontrol set -b 0xe0000000 -l 0x20000000 -o BIOS write-combine
$ startx

-- 
Nikola



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