Re: Testing LibDRM with Multi-Monitors on VMWare Fusion / Workstation

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Thanks a ton, I plan to try this out right away. 

- Rian

On Oct 15, 2014, at 4:34 PM, Thomas Hellstrom <thellstrom@xxxxxxxxxx> wrote:

> Hi!
> 
> On 09/25/2014 06:52 PM, Rian Quinn wrote:
>> I have been doing a lot of work with LibDRM, including Multi-Monitor work on Intel and VMWare. Do you guy’s know if there is an easy way to tell VMWare to add more virtual display’s for testing? LibDRM reports something like 8 different connectors, and several CRTCs, so I know it at least supports Multi-Monitor, I’m just not sure how to tell the hypervisor to enable more than one for testing. 
>> 
>> I’m sure this is a question for a better list, but I figured I cannot be the only one interested in working with LibDRM on VMWare. 
>> 
>> Thanks in advance, 
>> - Rian
> 
> Sorry for the late reply. There's an ioctl you may use to set the GUI
> layout: DRM_IOCTL_VMW_UPDATE_LAYOUT
> (which would in real hardware correspond to plugging in a set of
> monitors and arranging them). That ioctl is currently reserved for the
> master and the Xorg driver is using it if you need a code example. I
> haven't tested for a while, but it should be possible to have up to
> eight different virtual "displays" in a single VMware GUI window.
> 
> One caveat is that you might need to manually set the number of displays
> and their max sizes from the VMware GUI to make sure you get enough VRAM
> to back the displays.
> 
> /Thomas
> 
> 
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> 

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