From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?UTF-8?Q?Michel_D=c3=a4nzer?= <michel@daenzer.net>
Subject: Re: FirePro W600 problem
Date: Tue, 14 Oct 2014 15:29:22 +0900
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To: Alex Deucher <alexdeucher@gmail.com>, Andrey Germakovski <germakovskia@ainfosec.com>
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On 14.10.2014 00:39, Alex Deucher wrote:
> On Wed, Oct 8, 2014 at 4:41 PM, Andrey Germakovski
> <germakovskia@ainfosec.com> wrote:
>> FirePro W600 does not work with more than 4 monitors,
>>
>>
>>
>> After 5th  monitor attached X acting very slow.
>>
>>
>>
>> Or if I call drmModeSetCrtc function 5 times one time for each of the
>> monitors, it failing out
>
> I suspect you are running out of CPU accessible vram depending on your
> configuration.  There are patches for mesa and the kernel to allow the
> use of non-CPU accessible vram for display buffers in kernel 3.17 and
> mesa git so you might try a newer kernel and mesa.

The kernel changes for that will only be in 3.18, right?


-- =

Earthling Michel D=E4nzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer