[OpenIndiana-discuss] Dual screen setup with intel DRM & VESA

[Araragi Hokuto]

OK, apparently I've jumped into conclusion here, since the Skylake GPU 
is actually not supported by illumos DRM right now, so this setup is 
probably impossible. I'll update this after I've come up with another idea.

Thanks anyway.

On 1/8/21 5:44 PM, Araragi Hokuto wrote:
> Hello everyone.
>
> I'm trying to setup an OI installation for my illumos dev tasks. My 
> system has a i7-6700 CPU and RX480 graphics card, with a dual monitor 
> setup. Since there is no AMDGPU driver avaliable for illumos (Correct 
> me if I'm wrong, but https://www.illumos.org/issues/8069 does not seem 
> to have a corresponding kernel module, and I couldn't get that working 
> by simply installing the userland component, I'm assuming there is 
> still no actual support at this moment?), I'm currently using VESA 
> xorg driver, which works fine for me; but since it uses VESA BIOS for 
> display, there is no dual screen support.
>
> But I noticed that there is intel DRM support on illumos, and I do 
> have a intel GPU (the integrated GPU in my i7), so I'm thinking: is it 
> possible to utilize both GPU for dual screen support?
>
> More specifically, these are what I'm trying to do:
>
> a) Use VESA driver for RX480, and connect the primary screen to its 
> HDMI output, which is already working by default, and:
>
> b) Enable intel DRM on the integrated GPU, and connect the secondary 
> monitor to the HDMI port provided by my motherboard.
>
> a) is working by default now, and enabling intel GPU while keep the 
> AMD GPU working is certainly doable in my BIOS (verified under Linux 
> with xrandr). But I'm not sure how to configure X server on illumos to 
> make it aware of this setup.
>
> Therefore, is there anyone have ideas of what configure should I try, 
> or some alternative way to setup dual screen with VESA/intel DRM? 
> Unfortunately there is only one HDMI port on my motherboare, so I 
> don't think connecting both monitor to intel GPU is an option (again, 
> correct me if I'm wrong).
>
> Thanks in advance.
>
>
>
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