FirePro W600 problem

Alex Deucher alexdeucher at gmail.com
Mon Oct 13 08:39:19 PDT 2014


On Wed, Oct 8, 2014 at 4:41 PM, Andrey Germakovski
<germakovskia at 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.

Alex


More information about the dri-devel mailing list