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
Andrey
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.
Alex
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?
On Tue, Oct 14, 2014 at 2:29 AM, Michel Dänzer michel@daenzer.net wrote:
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?
Oh, right, 3.18. Sorry. Please try 3.18.
Alex
dri-devel@lists.freedesktop.org
-
Alex Deucher -
Andrey Germakovski -
Michel Dänzer