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Thread: How to keep a planar GPU up as a kernel monitor with X on an add-in?

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    Question How to keep a planar GPU up as a kernel monitor with X on an add-in?

    I've a situation with the emachines®/acer® EL1210-09 that I'm preparing for projector duty: X.org wanted to hijack the planar nVIDIA® C77 rev. a2 (Tesla: geForce® 8200 / nForce® 780a SLI) for GNOME Display Manager when I already have an msi® N610GT-1GD3-LP (nVIDIA® GF119 rev. a1 - Fermi: GeFORCE® GT™ 610) for the purpose and the proper nvidia-390 (Fermi and later) support software installed. This problem I partially solved with a custom-crafted Xorg.conf file that assigns the VESA non-accelerated video driver to the C77 and the nvidia-390 driver to the GF119, going verbose with BusID. However, I intend to keep the C77 up for a kernel monitor, consistently with remote serial display units, rather than have it black out when X is online.
    Code:
    ...
    # 02:00.0 VGA compatible controller [300]: NVIDIA Corporation C77 [geForce 8200] [10de:084b], rev. a2
    Section "Device"
    	Identifier	"VideoAdapter0"
    	Driver		"vesa"
    	BusID		"PCI:2:0:0"
    	VendorName	"Acer Computer Inc."
    	BoardName	"DAO78L Boxer"       
    	...
    EndSection
    
    # 03:00.0 VGA compatible controller [300]: NVIDIA Corporation GF119 [GeForce GT 610] [10de:104a], rev. a1
    Section "Device"
    	Identifier	"VideoAdapter1"
    	Driver		"nvidia"
    	BusID		"PCI:3:0:0"
    	VendorName	"Micro Star International"
    	BoardName	"N610GT-1GD3-LP"
    	...
    EndSection
    ...
    Is there a different Driver handle I should have used on Card 0; or should I look elsewhere for the "serial terminal" act for the C77?
    Last edited by bcschmerker; March 29th, 2021 at 04:55 AM. Reason: Amendment: VESA driver used on C77.
    nVIDIA® nForce® chipsets require discrete GPU's up to Pascal and appropriate nVIDIA Kernel modules.
    Most intel® ExpressSets™ and AMD® RS-Series are fully supported in open source.

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